Sugarcane Bagasse Waste Research Articles

Facile fabrication of sulfur-doped porous carbon from waste sugarcane bagasse for high performance supercapacitors

Our research has led to a significant breakthrough in the field of energy storage. For the first time, we have prepared a series of highly porous sulfur-doped activated carbon derived from natural biomass sugarcane bagasse. The sulfur-doped waste sugarcane bagasse-derived activated carbon (WSC/S) possess a unique properties of large specific surface area (SSA) with high mesoporosity, better wettability, and numerous redox active dopant sites. These unique properties of WSC/S significantly enhance supercapacitor functionality. There are a large number of mesopores on the WSC/S, which shorten the ion diffusion path length and make their ion transport efficient. As the results of that the WSC/S achieved a high specific capacitance of 282.25 Fg−1 with a current density of 0.1 Ag−1 and excellent cycling stability with >96 % capacitance retention after 10,000 cycles in 6 M KOH electrolyte. We explored WSC/S as an anode material to fabricate an asymmetric supercapacitor (ASC) device, where activated carbon cloth was used as a cathode. The ASC device showed an energy density of 43.26 Wh kg−1 with a power density of 0.1 kW kg−1 at a current density of 0.1 Ag−1, which is superior to that obtained for symmetric WSC/S//WSC/S supercapacitor. These performances indicate the potential of the WSC/S for high-performance energy storage systems.

Reducing Plastic Waste and Generating Bioelectricity Simultaneously through Fuel Cells Using the Fungus Pleurotus ostreatus

Plastic waste, a persistent and escalating issue, and the high costs of installing electric power, particularly in remote areas, have become pressing concerns for governments. This research proposes a novel method for generating electric power from sugarcane bagasse waste and reducing plastic waste. The key to this method is the use of the fungus Pleurotus ostreatus in microbial fuel cells. Microbial fuel cells (MFCs) demonstrated their effectiveness by generating peaks of electric current (4.325 ± 0.261 mA) and voltage (0.427 ± 0.031 V) on day twenty-six, with a pH of 5.539 ± 0.278. The peak electrical conductivity of the substrate was 130.574 ± 4.981 mS/cm. The MFCs were able to reduce the chemical oxygen demand by 83%, showing a maximum power density of 86.316 ± 4.724 mW/cm2 and an internal resistance of 37.384 ± 62.522 Ω. The infrared spectra of the plastic samples showed a decrease in the peaks 2850–2920, 1470, and 720 cm−1, which are more characteristic of plastic, demonstrating the action of the Pleurotus ostreatus fungus on the plastic samples. Also, the micrographs taken by SEM showed the reduction in the thickness of the plastic film by 54.06 µm and the formation of microstructures on the surface, such as pores and raised layers of the sample used.

Pengaruh Penggunaan Limbah Ampas Tebu Merah Sebagai Pengganti Semen terhadap Kuat Tekan Beton

The aim of this research is to determine the effect of red sugar cane bagasse waste as a cement substitute on the compressive strength of concrete and to determine the compressive strength value of concrete after adding red sugar bagasse waste as a cement substitute. This research is experimental research which begins with preparation of tools and materials, aggregate inspection, slump test, job mix design, making test objects, caring for test objects, testing concrete volume weight and ends with testing concrete compressive strength. The research results show that the addition of red sugar cane bagasse powder as a cement substitute in making concrete has an effect on the mechanical properties of concrete such as: slump value, concrete volume weight and concrete compressive strength. The average compressive strength value of concrete produced after adding 2.5% red sugar cane bagasse waste; 5%; 7.5% and 10% at 28 days are 20.95 MPa respectively; 17.15 MPa; 14.79 MPa and 11.87 MPa. Thus, red sugar bagasse waste is not recommended to be used as a cement substitute because the compressive strength value of the planned concrete is very far from normal concrete.

Novel sulfonic groups grafted sugarcane bagasse biosorbent for efficient removal of cationic dyes from wastewater

In this research, we reported the synthesis of effective sulphonated sugarcane bagasse (SCB@SA) biosorbent based on agriculture waste materials via a simple diazotization strategy for the removal of methylene blue (MB) and Bismarck Brown R(BB) dyes from waste water samples. First, the sugarcane bagasse (SCB) waste was collected, grinded, and sieved to obtain the desired size. Secondly, the SCB powder is modified with sulfanilinic acid (SA) via the formation of its diazonium salt to introduce sulfonic groups on the SCB surface. Different advanced techniques were applied to characterize the prepared materials before and after the adsorption process viz. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS) and Thermogravimetric analysis (TGA). Different parameters affecting the adsorption process of both MB and BB were studied. Because of the higher correlation coefficient (R2 ≥ 0.999) and lower error functions, the equilibrium MB and BB adsorption isotherms for a single-dye system fit Langmuir with maximum adsorption capacity reaching to 127.48 and 166.75 mg/g for MB and BB, respectively. Moreover, the RL values obtained for both dyes lie between 0 and 1, indicating that MB and BB adsorption by SCB@SA is a favorable process. Besides, the error functions’ values of the pseudo-2nd-order are significantly lower than those of the pseudo-1st-order, implying that the adsorption MB and BB onto SCB@SA biosorbent fitted the pseudo-2nd-order kinetic model in a chemosorption manner. In the thermodynamic studies, the adsorption process is spontaneous, exothermic, and has less randomness. In addition, the SCB@SA biosorbent could be reused in five cycles maintaining on suitable adsorption efficiency. Finally, the MB and BB dyes could be adsorbed on the SCB@SA biosorbent via three mechanisms including π-π stacking, columbic attraction, and hydrogen bonding.

Untapped potential: Sugarcane bagasse to biocompatible graphene oxide as biomedicine

This study explores the fabrication of Graphene oxide (GO) using agricultural waste sugarcane bagasse (SB) as an economical precursor over the costly graphite precursors. A novel method for synthesizing graphene oxide from sugarcane bagasse (GO-SB) is reported which involves carbonization followed by oxidation in a muffled environment. Raman spectroscopy was used to identify the position of the D band, G band and the 2D band in the synthesized GO-SB. FTIR analysis was applied to identify the existence of the functional groups in the SB and the synthesized GO-SB. The electronic transitions of the SB and the GO-SB were analyzed by Ultraviolet-visible spectroscopy and SEM-EDX analysis to examine the structure and the composition of the SB and the GO-SB.The 2θ peak and the interlayer distance of the GO-SB were determined by X-ray diffraction analysis. The synthesized GO-SB was evaluated for biomedical applications like anti-inflammatory and antioxidant activity. A highest inhibition percentage of 80.43 ± 0.51 % at 50 μg/ml was noted in case of the anti-inflammatory activity of the GO-SB and 85.33 ± 1.04 at 50 μg/ml for the antioxidant activity of the GO-SB. The synthesized GO-SB exhibits promising therapeutic actions as an anti-inflammatory and antioxidant agents. The cytotoxic nature of the GO-SB was evaluated by brine shrimp (nauplii) lethality assay and zebrafish embryos as an animal model. The result suggests that the GO-SB at a higher concentration 80 μg/ml has minor toxic effects against nauplii. Regarding zebrafish embryos, the GO-SB exhibited 83.33 ± 2.88 % hatching rate at a concentration of 100 μg/ml and 100 % viability at a concentration of 100 μg/ml and no symptoms of abnormal development in the embryos of zebrafish. Studies using nauplii and zebrafish development suggest the potential of synthesized GO-SB for safe nanomedicine due to its low toxicity.

Synthesis and characterization of hierarchically porous carbon anodes from furfural biorefinery residues for sustainable lithium-ion batteries

This study aims to valorize abundant lignocellulosic residues from furfural biorefineries into hierarchically porous carbon anodes for sustainable lithium-ion batteries (LIBs). Simultaneously, it addresses the growing demand for high-performance anode materials by leveraging renewable waste feedstocks. Sugarcane bagasse waste residues obtained after furfural extraction were used as the precursor. The furfural-derived bagasse residue (FDBR) underwent pyrolysis at 700 °C to produce a carbon-rich char, which was further activated using KOH and steam at 900 °C for 15–60 minutes to enhance porosity development. Comprehensive physicochemical characterizations, including proximate analysis, N2 adsorption-desorption, SEM-EDX, FTIR, and TGA/DTG, and Raman spectroscopy were performed to evaluate the properties of the synthesized activated carbons. The results demonstrated the successful generation of high surface area (405.8 m2/g) activated carbons with a hierarchical pore structure comprising micropores and mesopores. SEM and EDX analyses revealed a uniform, porous morphology enriched with 10.41 % at oxygen-containing functional groups. FTIR spectra confirmed the presence of hydroxyls, carbonyls, and carboxylic acid groups, beneficial for pseudocapacitive charge storage. The Raman analysis revealed a highly disordered and amorphous carbon structure with a significant concentration of defects, as evidenced by a high-intensity ratio (ID/IG ≈ 1.2–1.4) of the disordered carbon band to the graphitic band. The activated carbons exhibited a high initial discharge capacity of 1055 mAh/g in lithium half-cells, significantly exceeding the theoretical limit of commercial graphite anodes (372 mAh/g). This superior capacity was attributed to the high surface area, hierarchical porosity, and pseudocapacitive contributions from the oxygen functionalities. However, rapid capacity fading from 1055 to ∼250 mAh/g was observed over 100 cycles at a C/2 rate. The capacity retention stabilized at ∼88 % after 47 cycles, indicating irreversible capacity losses. These limitations were ascribed to the disordered amorphous structure, instability of the solid-electrolyte interphase, lithium trapping by oxygen groups, and structural changes during cycling. Optimizing activation conditions, incorporating conductive additives/coatings, exploring alternative binders, and surface functionalization are proposed to improve long-term cycling stability. Overall, this study demonstrates the feasibility of upcycling furfural biorefinery waste into sustainable LIB anodes while highlighting challenges and potential solutions for enhancing their electrochemical performance.

Valorization of Sugarcane Bagasse for Co-Production of Poly(3-hydroxybutyrate) and Bacteriocin Using Bacillus cereus Strain S356.

Poly(3-hydroxybutyrate) (P(3HB)) is an attractive biodegradable plastic alternative to petroleum-based plastic. However, the cost of microbial-based bioplastic production mainly lies in the cultivation medium. In this study, we screened the isolates capable of synthesizing P(3HB) using sugarcane bagasse (SCB) waste as a carbon source from 79 Bacillus isolates that had previously shown P(3HB) production using a commercial medium. The results revealed that isolate S356, identified as Bacillus cereus using 16S rDNA and gyrB gene analysis, had the highest P(3HB) accumulation. The highest P(3HB) yield (5.16 g/L, 85.3% of dry cell weight) was achieved by cultivating B. cereus S356 in an optimal medium with 1.5% total reducing sugar with SCB hydrolysate as the carbon source and 0.25% yeast extract as the nitrogen source. Transmission electron microscopy analysis showed the accumulation of approximately 3-5 P(3HB) granules in each B. cereus S356 cell. Proton nuclear magnetic resonance spectroscopy and Fourier transform infrared spectroscopy analyses confirmed that the polymer extracted from B. cereus S356 was P(3HB). Notably, during cultivation for P(3HB) plastic production, B. cereus S356 also secreted bacteriocin, which had high antibacterial activity against the same species (Bacillus cereus). Overall, this work demonstrated the possibility of co-producing eco-friendly biodegradable plastic P(3HB) and bacteriocin from renewable resources using the potential of B. cereus S356.

Impact of compost and biochar from agricultural waste on reducing cadmium concentration and mancozeb residue in soil

The negative impact of excessive exposure to agrochemicals in shallot cultivation causes environmental pollution and human health. Biochar has the potential to absorb agrochemical contamination. This research aimed to investigate the effect of providing compost and biochar from agricultural waste on land quality, reducing the concentration of heavy metal cadmium (Cd) and mancozeb pesticide residues in soil and products in shallot. The experiment was carried out in shallot fields in Ngurensiti Village, Pati Regency, Central Java Province. Four different treatments, including combinations of biochar and compost, were applied, along with conventional controls. Data were analyzed using the F test (ANOVA) and Tukey's test using the Minitab statistical program version 16.0. The research showed that using biochar made from sugarcane bagasse, rice husk, corncob, and compost helped more soil bacteria grow and lowered Cd and mancozeb concentrations. In addition, treatment with biochar from sugarcane bagasse waste showed a decrease in Cd and mancozeb concentrations and a more significant increase in bacterial populations compared to other treatments (rice husk biochar and corncob biochar). Although there was a slight increase in Cd concentration in shallot leaves post-treatment, Cd levels in shallot bulbs remained within safe limits. This study shows that using biochar and compost from agricultural waste effectively improves soil quality, reduces heavy metal pollution, and lowers pesticide levels to support sustainable agriculture and protect people's health.

Optimizing the Conditions of Pretreatment and Enzymatic Hydrolysis of Sugarcane Bagasse for Bioethanol Production.

The agricultural waste sugarcane bagasse (SCB) is a kind of plentiful biomass resource. In this study, different pretreatment methods (NaOH, H2SO4, and sodium percarbonate/glycerol) were utilized and compared. Among the three pretreatment methods, NaOH pretreatment was the most optimal method. Response surface methodology (RSM) was utilized to optimize NaOH pretreatment conditions. After optimization by RSM, the solid yield and lignin removal were 54.60 and 82.30% under the treatment of 1% NaOH, a time of 60 min, and a solid-to-liquid ratio of 1:15, respectively. Then, the enzymolysis conditions of cellulase for NaOH-treated SCB were optimized by RSM. Under the optimal enzymatic hydrolysis conditions (an enzyme dose of 18 FPU/g, a time of 64 h, and a solid-to-liquid ratio of 1:30), the actual yield of reducing sugar in the enzyme-treated hydrolysate was 443.52 mg/g SCB with a cellulose conversion rate of 85.33%. A bacterium, namely, Bacillus sp. EtOH, which produced ethanol and Baijiu aroma substances, was isolated from the high-temperature Daqu of Danquan Baijiu in our previous study. At last, when the strain EtOH was cultured for 36 h in a fermentation medium (reducing sugar from cellulase-treated SCB hydrolysate, yeast extract, and peptone), ethanol concentration reached 2.769 g/L (0.353%, v/v). The sugar-to-ethanol and SCB-to-ethanol yields were 13.85 and 11.81% in this study, respectively. In brief, after NaOH pretreatment, 1 g of original SCB produced 0.5460 g of NaOH-treated SCB. Then, after the enzymatic hydrolysis, reducing sugar yield (443.52 mg/g SCB) was obtained. Our study provided a suitable method for bioethanol production from SCB, which achieved efficient resource utilization of agricultural waste SCB.

UTILIZATION OF BAGASSE WASTE FOR BIO-OIL EXTRACTION FROM SUGARCANE JUICE VENDORS IN BANYUWANGI REGENCY

The disposal of sugarcane bagasse waste, often done through open dumping without further treatment, poses environmental pollution and unpleasant odors. Consequently, the implementation of technology is essential to address this issue, specifically by employing a solid waste recycling technology to produce bio-oil, which holds significant value. Utilizing sugarcane bagasse waste to create bio-oil presents an alternative to minimize aesthetic pollution. This research, sourced from sugarcane bagasse waste obtained from sugarcane beverage vendors in Banyuwangi Regency, explores the conversion of bagasse into bio-oil through the pyrolysis process. Bio-oil is an inorganic compound produced during the pyrolysis process. The aim of this study is to generate bio-oil from underutilized sugarcane bagasse, providing a functional and economically valuable alternative energy source that is both high-quality and environmentally friendly. Additionally, the research aims to determine the concentration and composition of bio-oil resulting from the pyrolysis of sugarcane bagasse. The analysis reveals that the high lignocellulosic content in sugarcane bagasse has the potential to be utilized for bio-oil production.

Improvement in Electrochemical Performance of Waste Sugarcane Bagasse-Derived Carbon via Hybridization with SiO2 Nanospheres.

Sugar industries generate substantial quantities of waste biomass after the extraction of sugar water from sugarcane stems, while biomass-derived porous carbon has currently received huge research attention for its sustainable application in energy storage systems. Hence, we have investigated waste sugarcane bagasse (WSB) as a cheap and potential source of porous carbon for supercapacitors. The electrochemical capacitive performance of WSB-derived carbon was further enhanced through hybridization with silicon dioxide (SiO2) as a cost-effective pseudocapacitance material. Porous WSB-C/SiO2 nanocomposites were prepared via the in situ pyrolysis of tetraethyl orthosilicate (TEOS)-modified WSB biomass. The morphological analysis confirms the pyrolytic growth of SiO2 nanospheres on WSB-C. The electrochemical performance of WSB-C/SiO2 nanocomposites was optimized by varying the SiO2 content, using two different electrolytes. The capacitance of activated WSB-C was remarkably enhanced upon hybridization with SiO2, while the nanocomposite electrode demonstrated superior specific capacitance in 6 M KOH electrolyte compared to neutral Na2SO4 electrolyte. A maximum specific capacitance of 362.3 F/g at 0.25 A/g was achieved for the WSB-C/SiO2 105 nanocomposite. The capacitance retention was slightly lower in nanocomposite electrodes (91.7-86.9%) than in pure WSB-C (97.4%) but still satisfactory. A symmetric WSB-C/SiO2 105//WSB-C/SiO2 105 supercapacitor was fabricated and achieved an energy density of 50.3 Wh kg-1 at a power density of 250 W kg-1, which is substantially higher than the WSB-C//WSB-C supercapacitor (22.1 Wh kg-1).

Tailoring hierarchical structures in cellulose carbon aerogels from sugarcane bagasse using different crosslinking agents for enhancing electrochemical desalination capability

Sugarcane bagasse is one of the most common Vietnamese agricultural waste, which possesses a large percentage of cellulose, making it an abundant and environmentally friendly source for the fabrication of cellulose carbon aerogel. Herein, waste sugarcane bagasse was used to synthesize cellulose aerogel using different crosslinking agents such as urea, polyvinyl alcohol (PVA) and sodium alginate (SA). The 3D porous network of cellulose aerogels was constructed by intermolecular hydrogen bonding, which was confirmed by Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and nitrogen adsorption/desorption. Among the three cellulose aerogel samples, cellulose – SA aerogel (SB-CA-SA) has low density of 0.04 g m−3 and high porosity of 97.38%, leading to high surface area of 497.9 m2 g−1 with 55.67% micropores of activated carbon aerogel (SB-ACCA-SA). The salt adsorption capacity was high (17.87 mg g−1), which can be further enhanced to 31.40 mg g−1 with the addition of CNT. Moreover, the desalination process using the SB-ACCA-SA-CNT electrode was stable even after 50 cycles. The results show the great combination of cellulose from waste sugarcane bagasse with sodium alginate and carbon nanotubes in the fabrication of carbon materials as the CDI-utilized electrodes with high desalination capability and good durability.

Improved non-woven surgical masks with nanostructured cellulosic reinforcement from sugarcane bagasse waste

The COVID-19 pandemic has brought concerns about the efficacy of respiratory protection equipment, primarily due to their widespread usage during this period. Among the various types of face masks, the N95, PFF3, and PFF2 surgical masks have gained great prominence due to their efficiency, despite the discomfort they may cause. Therefore, thinking of a cost-effective and more comfortable solution, this work aimed to reinforce non-woven face masks with cellulose nanofibrils (CNFs), to improve their filtration efficiency. For this, CNFs were produced using the mechanical processing of sugarcane bagasse (SCB) residues, which underwent plain alkaline pretreatment (CNF-PA) or alkaline pretreatment followed by enzymatic pretreatment (CNF-AE). It was observed that the CNF-AE films developed better characteristics regarding the contact angle, density, porosity, transmittance and transparency as well as vapor permeability compared to the CNF-PA films. The application of CNF on non-woven masks was performed using the spray technique. Bacterial filtration analysis showed filtration efficiency of 99.68% and 99.80% for masks that were coated with CNF-PA and CNF-AE, respectively. Whereas uncoated masks presented a filtration efficiency below 95%, which is the minimum required value. The masks obtained breathability values of 79.75 Pa/cm2 and 106.00 Pa/cm2 for CNF-AE and CNF-PA, respectively, whereas the uncoated masks showed values below 30.00 Pa/cm2. This work shows that the CNF obtained from SCB present good barrier capabilities and should be used for this purpose, especially on protective masks.

Eco-friendly biopolishing of cotton fabric through wasted sugarcane bagasse-derived enzymes

Enzymatic processing has been a suitable bio-based sustainable application for the textile industry, mitigates the use of harsh chemicals, and minimises environmental impact. Among these enzymes, cellulase enzymes have been extensively used for biopolishing applications. This study introduces an eco-friendly biopolishing of cotton fabric that has been developed by using enzymes extracted from wasted sugarcane bagasse waste in an aqueous medium. Various extraction conditions were explored, and experiments were conducted under diverse time, pH, and temperature settings. The qualitative BUTEXDCE2022C01 testing method was used to assess the biopolishing effects, resulting in a considerable reduction in fabric weight (up to 5.26%) and strength (up to 10.54%). The optimum biopolishing condition was identified to be 1 h at pH 4.8, 55 °C from the fermented solution on day three, indicating the presence of acid cellulase enzyme. The viability of cellulase enzymes has been verified through comparative analysis with commercial samples that had undergone enzyme-biopolishing. Extracted and filtered enzymes exhibited pH stability at room temperature and proved equally effective as industrial enzymes. As textile industries pursue eco-friendly solutions, extracting cellulase from wasted sugarcane bagasse could be a sustainable and alternative option, which also can be sourced locally. Therefore, these findings have wider implications for sustainable enzyme extraction methods and contributions to environmental conservation.

Preparation of thermally stable and flame‐retardant sugarcane bagasse‐ammonium dihydrogen phosphate/epoxy composites and their performance

AbstractEpoxy resin was often applied in fiber‐reinforced composite materials, adhesives, and encapsulation materials. However, epoxy was easily flammable and limited its usage in certain applications. The study recycled and reused agricultural waste sugarcane bagasse to prepare a halogen‐free bio‐based intumescent flame retardant and then mixed with epoxy resin to prepare a composite containing polymer with improved thermal properties and flame retardancy of the materials. The work followed the concept of circular economy and sustainability. Bagasse‐ammonium dihydrogen phosphate (ADP) flame retardant was added to an epoxy resin to prepare epoxy/bagasse‐ADP composites, an effective flame‐retarding composite material through hydrothermal method. Adding bagasse‐ADP increased the thermal stability and flame retardancy of the composite materials compared with that of pure epoxy. For the material with 30 wt% added bagasse‐ADP, the char yield was 32.3 wt%, which was 18.2 wt% higher than that of pure epoxy (14.1 wt%) through thermogravimetric analysis. In addition, the limiting oxygen index increased from 21% to 30%, and the UL‐94 classification improved from “Fail” to “V‐0.” This performance was attributed to the nitrogen, phosphorus, and silicon content of the flame retardant.

Kotak Safety Box Bagasse Sebagai Tempat Sampah Limbah Medis Dari Bahan Dasar Limbah Ampas Tebu

In the Riau region, especially in the city of Pekanbaru, there are many sellers of sugarcane ice drinks who produce a lot of wasted bagasse waste. The processing of bagasse waste from these sellers is not optimal so there is still a lot of rubbish strewn around the road which causes environmental pollution. Therefore, to optimize waste cleaning, apart from throwing it away, we took the initiative to use the bagasse waste into safety boxes. In general, sugar cane bagasse has fiber properties that are almost the same as those of broadleaf wood fiber. The aim of this service is to utilize waste that still has the potential to be reprocessed into high-value goods. This service method is divided into 3 stages, namely the survey stage, production stage and marketing stage. The result of this service was that a 5ml safety baggage box was formed with a selling price of IDR 35,000.00 per box. The bagasse safety box is a unique product on the market because it uses sugarcane bagasse waste and uses an environmentally friendly concept.

Enhancing material properties of agro-industrial waste sugarcane bagasse ash—Way towards sustainable development

The present study deals with a comprehensive characterization of Sugarcane bagasse ash (SCBA) and its effect on pozzolanic reactivity. Utilizing SCBA as pozzolanic material reduces the ash disposal problem and enhance the properties of cementitious composites. The ash is pre-treated by two methods: sieving followed by incineration; and incineration followed by ball mill grinding inorder to increase the fineness or specific surface area, reduce loss on ignition and increase amorphous reactivity of sugarcane bagasse ash. The first method is energy intensive method, as the duration of sieving is only 15 min and incinerated at lowest temperature of 400 °C. The second method is a selective pre-treatment method, where incineration is done first to reduce LOI, followed by grinding for 60,120 and 180 min. The effect of processing methodology is studied by considering energy consumption, enhanced particle morphology of SCBA and pozzolanic reactivity of SCBA. The physio-chemical characterization is done by standard American, Indian codes. Enhanced micro-structural characterization is done by Lazer particle size analyzer, Scanning Electron Microscopy (SEM) test associated with Electro Dispersion Spectroscopy (EDS), X-ray diffraction (XRD) test, Thermo-gravimetric (TGA) studies. Further, the treated ash is tested for its pozzolanic reactivity by strength activity index and Frattini test. It is observed that sieving has consumed less energy of 11.5 kWh/t compared to grinding. However, the samples sieved couldn't perform well in pozzolanic reactivity due to the inert silica present in it. The particle morphology is enhanced compared to raw SCBA. SCBA samples incinerated and grinded have shown a maximum strength activity index of 82.99 % and 92.6 % with an energy consumption of 30.4 kWh/t and 45.6 kWh/t for grinding. The Frattini test results are in co-relation with strength activity index with a factor of 80.52.

Isolation, Modification, and Characterization of Local Indonesia's Sugarcane Bagasse Cellulose for Dye‐Adsorbent Application

AbstractCellulose and its derivatives have been widely used in various applications. Cellulose can be isolated from sugarcane bagasse waste. This research aims to isolate and modify the sugarcane bagasse cellulose to improve its characteristics and usability. Cellulose was isolated using the alkalization and bleaching method, wherein the alkalization processes the biomass was immersed in a sodium hydroxide solution and bleached using hydrogen peroxide. Cellulose modification was performed using alkali treatment and etherification stages with monochloroacetic acid in an isopropanol solvent. The β‐(1,4)‐glycosidic vibration absorption on both the bleaching products at 896 cm−1 confirmed pure cellulose, while a carbonyl group at 1610 cm−1 in the modified cellulose product confirmed the pure CMC product. The CMC obtained had lower thermal stability in the interval 241.35–299.87 compared to cellulose as its source, indicating an increase in the amorphous region. According to experimental findings from the MB adsorption investigation, citric acid‐crosslinked sugarcane bagasse derivatives of carboxymethyl cellulose (CMC) were more effective adsorbents for removing MB than commercial CMC with the same formulation (2 : 1). The study‘s findings also indicated that an increase in the percentage of MB degradation was correlated with an effect of adsorbent dose and contact time.

Green synthesis of ZnO-NPs using sugarcane bagasse waste: phytochemical assessment of extract and biological study of nanoparticles.

The accumulation of agricultural and industrial residues inevitably contributes to environmental pollution. Thus, several scientific investigations have been conducted to overcome this problem and to add an economic value proposition. Unlike typical sugarcane bagasse applications, this work presents a novel application of sugarcane bagasse waste in a green synthesis approach for forming zinc oxide nanoparticles (ZnO-NPs). This work opens the door to studying the potential of sugarcane bagasse in a green synthesis orientation. Phytochemical assessment of the aqueous extract of sugarcane bagasse waste was conducted by studying total flavonoid content, total phenolic content, and antioxidant assays. ZnO-NPs were synthesized using the aqueous sugarcane bagasse extract (ASCBE) with a 96% yield. To obtain 99.7% pure ZnO-NPs, nanoparticles were calcined at 550 °C to remove any remaining plant extract residues. The purity and yield of the produced and modified ZnO-NPs were studied. The initially produced and modified ZnO-NPs were characterized using XRD, FT-IR, UV, TEM, TGA, and PL and to determine the necessity of the calcination step. A detailed proposed mechanism for the formation of ZnO-NPs mediated by ASCBE was introduced. The ZnO-NPs were studied for their antibacterial, antifungal, and antiviral activities. The ZnO-NPs before calcination were found to exhibit more potent antimicrobial activity against both P. aeruginosa and A. niger compared to the calcined ZnO-NPs. In addition, molecular docking analysis revealed that the ZnO-NPs had the strongest binding affinity towards the P. aeruginosa RhlG/NADP active-site complex and the crystal structure of Actibind, a T2 RNase of A. Niger. ZnO-NPs also showed promising binding interactions with viral targets, including the Herpes simplex virus type II protease and Influenza virus NS1 effector domain. Additionally, environmental and economic studies were achieved to relate the scientific study with daily life applications.

Carbon composite of NiO hydrothermal impregnation from sugarcane bagasse and its electrochemical properties

Sugarcane bagasse (SB) can synthesize activated carbon (AC) through a two-step calcination process at calcination at 400oC and activation at 800oC. NaOH 0.1 M is used to activate the pre-carbonized sample in the activation step. The AC samples undergo hydrothermal impregnation with nickel oxide (NiO) at 110°C. The X-ray diffraction (XRD) pattern and Energy dispersive X-ray spectroscopy (EDX) confirmed the presence of NiO after this process. Scanning Electron Microscope (SEM) indicates the presence of pore structures in the sample morphology. A three-electrode system with 1 M Na2SO4 as an electrolyte was employed to assess the electrochemical properties. The specific capacitance for activated carbon derived from SB stands at 89.53 F/g at 0.05 A/g current density, while after impregnation with NiO, it increases to 250.53 F/g at the same current density. The results demonstrate the possibility of activated carbon from sugarcane bagasse waste composited with NiO as supercapacitor electrodes.