Methyl Red Dye Research Articles

Multifunctional dual Z-scheme heterostructured Sm2O3-WO3-La2O3 nanocomposite: Enhanced electrochemical, photocatalytic, and antibacterial properties

In this study, heterostructured dual Z-scheme Sm2O3-WO3-La2O3 nanocomposite (NC) and bare Sm2O3, WO3, and La2O3 nanostructured (NSs) were prepared using a co-precipitation approach. The comparative electrochemical, photocatalytic, and antimicrobial properties of NC and NSs were studied. The XRD spectrum exhibits the formation of bare NSs and NC having cubic-Sm2O3, monoclinic-WO3, and hexagonal-La2O3 phases. FESEM results showed mesoporous morphology of NC. The higher electrical conductivity 261.33 mho-cm−1 and lower optical energy bandgap 2.55 eV were obtained for NC. The photodegradation tests exhibited that NC photocatalyst has degraded 99% (methylene blue), 96% (Methyl orange), 99% (safranin-O), 48% (p-nitroaniline), and 98% (methyl red) dyes pollutants in 40 min sunlight radiation and showed strong inhibition activity against E. coli, K. pneumoniae, S. aureus, P. Vulgaris, and P. aeruginosa bacterial strains with zones of inhibition (ZOI) 31 mm, 30 mm, 30 mm, 28 mm, and 31 mm, respectively. Electrochemical studies revealed the excellent capacitive characteristics of NC with a specific capacitance 532F/g at a scan rate 5 mV/s, energy density 48.0278 W h Kg−1, and power density 0.3782 KW Kg−1 at 0.006 A/cm2 current density. Furthermore, the present study revealed a novel composition for environmental remediation and energy storage applications.

Synthesis of Mn2+ modified CdS nanoparticles and its application as catalyst in photodegradation of methyl red dye

Photocatalytic degradation of methyl red dye using Mn(5%) doped CdS nanoparticles was studied.Mn doped CdS nanoparticles was synthesized by microwave assisted solvo thermal method where the chemicals used wereCadmium Acetate [(CH3COO)2Cd, H2O], Manganese Chloride [MnCl2.2H2O] and Sodium Sulfide [Na2S.xH2O]. X-Ray diffraction(XRD) analysis was carried out in order to analyze the structural dimensions of the synthesized nanoparticles and the average crystallite size has been calculated at the full width half maximum (FWHM) of the diffraction peaks using Debye-Scherer equation and it was found to be around2.3nm. FTIR spectra analysis was done in order to analyze different functional and vibrational groups present in the as synthesized sample of Mn doped CdSnanoparticles.The morphology of sample wasstudied by scanning electron microscope. The aqueous solution of methyl red[C15H15N3O2] has been prepared and was mixed with the as synthesized Mn doped CdSnanoparticles and was exposed for photocatalytic degradation using 100 W bulb. UV-visible spectra of the light irradiated methyl red solutions were studied at different interval of time and no red shift was observed with increase of exposure time. The intensity of the absorption peak was also found to be reduced with the increasing time interval. The photo degradation of methyl red dye was observed up to 90% at the exposure time of 90 minutes.

Synthesis, characterization and investigation of hydrophobic and self-cleaning properties of modified Zn–Mn and Cu–Mn nano spinels

Nano spinels of zinc-manganite and copper-manganite were synthesized by the co-precipitation method. Characterization of synthesized nanoparticles has been carried out using X-ray diffraction (XRD), Fourier transform infrared (FTIR), UV–vis diffuse reflectance spectroscopy (DRS), Field emission scanning electron microscopy (FESEM) and Atomic force microscopy (AFM) methods resulting in confirmation of the target phase formation performance of synthesized nanoparticles evaluated in photodegradation methyl red organic dye. In addition, synthesized nanoparticles were coated on sand-blasted glass and modified using palmitic acid to reach the hydrophobic surface. The contact angles of water droplets were measured for both surfaces which were 159° and 152° for zinc-manganite and copper manganite, respectively. The hydrophobicity of both coatings was available after 360 days making them a good candidate for the production of hydrophobic coating with photocatalytic activity in a blend with cement-like materials.

Photocatalytic degradation of Methyl Red dye using highly efficient ZnO/CdS hierarchical heterostructures under white LED

Photocatalytic degradation of Methyl Red dye using highly efficient ZnO/CdS hierarchical heterostructures under white LED

Impacts of freshwater mussels on planktonic communities and water quality

Live Freshwater Mussels (FMs) have remarkable characteristics to support other species and the ecosystem. The objective of the study was to identify the planktonic composition; dye absorbance by living FMs; analyze the water quality indicators; and determine the heavy metals from FMs of different rivers in Bangladesh. In order to assess the planktonic composition, planktons were collected from the experimental ponds and then identified under the microscope. Methyl blue (MB) and methyl red (MR) dye absorbance were assessed using live FMs. After co-cultivating Silver barb (Barbonymus gonionotus) with FMs, water quality indicators (including pH, DO, hardness, total dissolved solids, ammonia, nitrite, and nitrate) were recorded. For determining heavy metals (Cu, Cr, Cd, Pb, Zn), mussels (Lamellidens marginalis) samples were collected from different rivers of Bangladesh. The findings of the study showed that the planktons were significantly (p < 0.01) greater in the ‘Fish’ group, compared to the 'Mussels' and ‘Mussels + Fish’ groups. Also, the MB and MR dye absorption were significantly higher (p < 0.01) in mussels, indicating that live FMs can accumulate hazardous dyes. Furthermore, the hardness value in the 'Mussels' and ‘Mussels + Fish’ groups were significantly (p < 0.01) greater than in the ‘Fish’ group. In addition, the values of nitrite and nitrate in the ‘Fish’ group were also significantly (p < 0.05) greater than those in the ‘Mussels + Fish’ group. The heavy metals content in the mussels of the Buriganga river was significantly (p < 0.05) higher compared to the mussels of the Rupsha and Brahmaputra rivers. This study revealed that the live FMs have the profound potential to consume plankton, absorb hazardous wastewater dyes, and maintain good water quality which may serve as the ecological indicators in freshwater environment.

Synthesis of Mn2+modified CdS nanoparticles and its application as catalyst in photodegradation of methyl red dye

Photocatalytic degradation of methyl red dye using Mn(5%) doped CdS nanoparticles was studied.Mn doped CdS nanoparticles was synthesized by microwave assisted solvo thermal method where the chemicals used wereCadmium Acetate [(CH3COO)2Cd, H2O], Manganese Chloride [MnCl2.2H2O] and Sodium Sulfide [Na2S.xH2O]. X-Ray diffraction(XRD) analysis was carried out in order to analyze the structural dimensions of the synthesized nanoparticles and the average crystallite size has been calculated at the full width half maximum (FWHM) of the diffraction peaks using Debye-Scherer equation and it was found to be around2.3nm. FTIR spectra analysis was done in order to analyze different functional and vibrational groups present in the as synthesized sample of Mn doped CdSnanoparticles.The morphology of sample wasstudied by scanning electron microscope. The aqueous solution of methyl red[C15H15N3O2] has been prepared and was mixed with the as synthesized Mn doped CdSnanoparticles and was exposed for photocatalytic degradation using 100 W bulb. UV-visible spectra of the light irradiated methyl red solutions were studied at different interval of time and no red shift was observed with increase of exposure time. The intensity of the absorption peak was also found to be reduced with the increasing time interval. The photo degradation of methyl red dye was observed up to 90% at the exposure time of 90 minutes.

Electrochemical Deposition (ECD) of ZnO as the Photoanode in Dual‐Chamber Photocatalytic Fuel Cell (PFC) for Methyl Red Degradation

AbstractPhotocatalytic fuel cell (PFC) is known to treat the organic‐based wastewater efficiently. The coating method of zinc(II) oxide (ZnO) as the photocatalyst on the zinc (Zn) plate of photoanode plays important role in maintaining the efficiency and power generation from PFC. In the present study, a new coating method of ZnO on the zinc plate is developed by using electrochemical deposition (ECD) and the removal efficiency as well as power generation are compared with typical ultrasonicate method. A dual‐chamber PFC is constructed with ZnO/Zn photoanode and graphite plate as the cathode to treat methyl red dye synthetic wastewater. The surface morphology of both coating methods of ZnO/Zn photoanode is observed using scanning electron microscope (SEM) before and after the treatments. The dual chamber PFC with ECD coating shows a faster complete degradation rate with higher power generation than ultrasonicate method. Although, both coating methods can reach to 100% degradation efficiency of methyl red dye, the maximum power output for ultrasonicate method is 134.67 mW cm−2 while for ECD is 285.30 mW cm−2 under optimum conditions.

Role of SA-g-(PAA-co-AM)/CdS Hydrogel: As Photocatalytic for Decolonization Methyl Red Dye as a Pollutant from Aqueous Solution

The photocatalytic method to remove the color of methyl red (MR) dye from aqueous solutions in the presence of SA-g-(PAAco- AM)/CdS hydrogel has been studied with the utilization of artifi cial UV-A light source. The properties of the hydrogel /Csd were studied using techniques (FESEM, TEM, and TGA).The eff ects of several factors, like time of irradiation, amount of SA-g-(PAA-co-AM)/CdS hydrogel, initial concentration of MR dye onto photo-catalytic degradation, were studies . The rate of de-colorization was found to increase remarkably with increased time of irradiation. Under best conditions from pH=5.4 and temperature at 25°C , the extent of removal color of MR dye was 100% after 1hr of irradiation at a concentration 15 mg/L. And found the initial rise in rate of MR degradation with increase in quantity of SA-g-(PAA-co-AM)/CdS hydrogel is due to an increase in number of active sites on the hydrogel of photocatalyst the rate of degradation, and photodegradation capacity is rising with increasing light intensity.

Effect of size on physicochemical, antibacterial, and catalytic properties of Neolamarckia cadamba (burflower-tree) synthesized silver/silver chloride nanoparticles.

Aqueous extract of Neolamarchia cadamba leaves were used in the synthesis of silver/silver chloride nanoparticles (Ag/AgCl NPs). Further they were separated based on their using step-wise centrifugation approach at 09,000, 12,000, and 15,000rpm. Thus obtained NPs were characterized for their physicochemical features. NPs showed maximum absorbance at 455nm, 415nm, and 402nm. All the NPs were found to be crystalline in nature with average crystallite size (nm) of 58.31, 23.43, and 09.56. Particle size distribution (nm) of NPs was observed to 435.43, 276.75, and 105.49, Surface charge (-mV) of NPs was observed to be 14.59, 23.90, and 32.17. Ag/AgCl NPs-rpm@15,000 showed antibacterial activity against Escherichia coli, coagulase-negative Staphylococci, and Staphylococcus aureus with zone of inhibition (mm) of 16.65, 13.69, and 14.02 at 50µg per well, respectively. Ag/AgCl NPs-rpm@15,000 showed excellent catalytic activity in degradation of methyl red, methylene blue, rhodamine-B, and methyl orange dyes in the presence of sodium borohydride under 4, 6, 5, and 4min with pseudo-first order rate constant (min-1) of 0.981 (96.4%), 0.666 (97.1%), 0.905 (98.1%), and 1.032 (96.6%), respectively. Furthermore, Ag/AgCl NPs-rpm@15,000 showed good catalytic efficiency even under different dye combinations. Total combination was degraded under 18min.

Musa sapientum mediated synthesis of Erbium doped copper oxide for the sensitive detection of nitrites and degradation of azo dye

The Musa sapientum mediated synthesis of Erbium doped Copper Oxide (Er-CuO) is used to modify the glassy carbon electrode (GCE) and has shown to be an electrochemical interface that is sensitive enough to detect nitrite. X-Ray Diffraction (XRD), Energy dispersive X-Ray (EDX), Scanning Electron microscopy (SEM), Transmission electron microscopy (TEM), Fourier transform infrared (FTIR), and Brunauer–Emmett–Teller (BET) have been used to characterize the synthesized nanoparticle. In the electrochemical oxidation of nitrite, the Er-CuO electrode displayed greater oxidative current and lower overpotentials than the bare glassy carbon electrode. The recommended sensor showed linear response over the concentration range 10–180 μL with a limit of detection (LOD) of 7.74 μM and sensitivity of 0.00937 μA μM−1 cm−2. The synthesised Er-CuO could also degrade an azo dye-Methyl Red (MR) up to 98 per cent when exposed to visible light. The effects of different variables on photocatalysis, such as pH, dye concentration, and catalyst concentration, were investigated. Er-CuO may degrade 20 mg/L of MR up to 97 per cent at an ideal pH of 7.0 and 20 mg of catalyst concentration. The results demonstrate that Er-CuO is stable and can still degrade MR to 80 per cent even after 5 cycles. These stability test results demonstrate that Er-CuO is well stable for MR degradation under light and in nitrite electrochemical sensing.

A Novel Strategy for Enhanced Sequestration of Protein-Bound Uremic Toxins Using Smart Hybrid Membranes.

Currently available hemodialysis (HD) membranes are unable to safely remove protein-bound uremic toxins (PBUTs), especially those bonded to human serum albumin (HSA). To overcome this issue, the prior administration of high doses of HSA competitive binders, such as ibuprofen (IBF), has been proposed as a complementary clinical protocol to increase HD efficiency. In this work, we designed and prepared novel hybrid membranes conjugated with IBF, thus avoiding its administration to end-stage renal disease (ESRD) patients. Two novel silicon precursors containing IBF were synthesized and, by the combination of a sol-gel reaction and the phase inversion technique, four monophasic hybrid integral asymmetric cellulose acetate/silica/IBF membranes in which silicon precursors are covalently bonded to the cellulose acetate polymer were produced. To prove IBF incorporation, methyl red dye was used as a model, thus allowing simple visual color control of the membrane fabrication and stability. These smart membranes may display a competitive behavior towards HSA, allowing the local displacement of PBUTs in future hemodialyzers.

Investigate the suitability of g-C3N4 nanosheets ornamented with BiOI nanoflowers for photocatalytic dye degradation and PEC water splitting

The two-step thermal polymerization and solvothermal approach is used to construct nano heterostructures of FCN and BiOI (bismuth oxeye iodide), both of which are Nobel metal-free materials. This work reports the effect nano-heterostructure on the micro-structural, light absorption capability, PEC properties and pollutant degradation efficiency of the synthesised heterostructures. The addition to that formation of FCN/BiOI nano-heterostructure enhances the solar light absorption. The FCN/BiOI nano heterostructure shows 10 times higher photocurrent density than the BCN nanostructure and 3.8 time higher that FCN. The FCN/BiOI has a high induced photo-current density (20.17 mA/cm2) and H2 evolution rate (3762 μmol h−1 cm−2) under solar light illumination (λ ≥ 420 nm) in comparison with the other. Furthermore, the photocatalytic performance of this material for the breakdown of methyl red dyes was much greater. Under solar light irradiation, the azo dyes were degraded in 90 min. The FCN/BiOI nano-heterostructure has a higher dye degradation efficiency of 97.91%. The rapid transport of photo-induced electrons in the FCN/BiOI nanocomposite is responsible for the improvement in PEC and PC performances. These impressive findings suggest that this nanocomposite might be used to facilitate the PEC water splitting and the PC degradation of MR in the presence of light. The current research provides insight on how to best tailor composition and structure for efficient FCN photo-electrocatalysis water splitting and Methyl red dye degradation.

PRODUCTION OF ACTIVATED CARBON OF PALMYRA PALM FRUIT SHELL (Borassus flabellifer Linn.) FROM KISAR ISLAND, SOUTHWEST MALUKU REGENCY FOR ADSORPTION OF METHYL RED DYE

&#x0D; Palmyra palm is a species of palmae that grows a lot on Kisar Island where all parts of the plant can be utilized. However, the palmyra palm fruit shell has not been used and that is only thrown away. In this study, palmyra palm fruit shell were made as activated carbon and were characterized using XRD to determine the crystallinity properties of the palmyra palm fruit shell activated carbon and adsorption test was carried out to determine the capacity and efficiency of activated carbon adsorption to methyl red dye. The production of palmyra palm fruit shell activated carbon is carried out through the carbonization stage at 300°C for 1 hour, and followed by chemical activation using H3PO4 10% solution for 24 hours. The results of the analysis using XRD showed that the activated carbon of the palmyra palm fruit shell formed peaks with the highest intensity at diffraction angles of 2θ = 26.5241° and 27.6274° with d-spacing values ​​(Å) = 3.36059 and 3.22884, which are characteristic peaks of carbon and are amorphous. The adsorption of methyl red 20 ppm use batch method, with various contact times of 5, 10, 15, 20, 25, and 30 minutes. The results of showed that on 15 minutes was the optimal time, with 0.25 gram mass of the adsorbent and the adsorption capacity and adsorption efficiency was 0.87 mg/g and 44.3%, respectively.

Surfactants assisted synthesis of CuAl-sodium dodecyl sulfate layered double hydroxide and its adsorptive removal of methyl red dye from aqueous solution

The versatile nature of layered double hydroxide (LDH) has made it the most widely used potential adsorbent for the decontamination of azo dye-polluted wastewater. Recently, the assembling of organic molecules on LDH structure to improve its physicochemical characteristics is given more attention by researchers. In this present work, the adsorption property of the CuAl-LDH was enhanced by modification with anionic surfactants sodium dodecyl sulfate and the synthesized materials were applied for the examination of methyl red removal from its aqueous solution. Both the pristine and surfactants modified LDH were synthesized by a facile co-precipitation method and characterized by X-ray diffraction, Brauner-Emmet-Teller surface area, thermogravimetric analysis, infrared spectroscopy, scanning emission microscopy, and energy dispersive x-ray spectroscopy. The obtained experimental data were analyzed by different isotherm and kinetics models and it shows higher degree of coefficient correlation with Langmuir isotherm and pseudo-second-order kinetic model. However, the study of thermodynamic parameters reveals that the adsorption process is spontaneous and endothermic in nature for both the adsorbents. The adsorption efficiency of surfactant fabricated CuAl/SDS-LDH was increased compared to pristine LDH and the maximum monolayer adsorption capacity qmax (mg g−1) for CuAl-LDH and CuAl/SDS-LDH were 209.9 mg g−1 and 411.47 mg g−1, respectively. The reusability of the materials indicates impressive results and can be repeated for up to four cycles. The synthesized sorbents CuAl-LDH and CuAl/SDS-LDH can significantly remove the target organic pollutant over a broad range of dye concentrations.

Investigation of the cationic resin as a potential adsorbent to remove MR and CV dyes: Kinetic, equilibrium isotherms studies and DFT calculations

In this work, we looked at how well the cationic ion exchange resin Amberlite®IRC-50 resin adsorbed the Methyl Red (MR) and Crystal Violet (CV) dyes from model aquatic fluids. Using technological spectroscopy for UV–Visible adsorption, this performance was predetermined. The initial concentration of MR and CV dyes was set at 10 mg L − 1, and the pH of the colored solution was around 8.5 for the bath temperature of the anionic MR dye and around 5.0 of the cationic CV dye, the cationic resin's mass measured at 0.1 g, and the Qe adsorption capacity examined. The results experimentally as well showed in this research that the adsorption kinetics research obtained at the contact time at 120 min for the MR dye and at 180 min for the cationic CV dye. Moreover, Theoretical calculations were carried out using simulations of the (DFT) explored the interaction between the most reactive sites concerning the major biosorbent constituent the cationic Amberlite®IRC-50 resin which is the organic polymer and two organic MR and CV dyes. In other then of HOMO and LUMO landing energy of the molecules of the MR dye with the adsorbent cationic polymer resin can give a positive impression on electron intromission and the various renovations of the organic dye of the methyl red. The comparative study of all results and theoretical results has confirmed the biosorption potential of the stobtained udied of the adsorbent organic polymer for the removal of dyes.

Gum katira-silver nanoparticle-based bionanocomposite for the removal of methyl red dye.

The present study aimed to synthesize gum katira-silver nanoparticle-based bionanocomposite. Different characterization techniques were used to analyze the synthesized bionanocomposite, such as Fourier transform infrared (FTIR) spectroscopy, field emission scanning electron microscopy (FESEM), thermo-gravimetric analysis (TGA), and transmission electronic microscopy (TEM). AgNPs were formed and were 6-20nm in size. Thermo-gravimetric analysis showed that synthesized nanocomposites are more thermally stable than gum katira. All the reaction conditions, such as time, temperature, pH, solvent, amount of nanoparticles, the concentration of the initiator, crosslinker, and monomer were optimized with respect to swelling. The results showed that the highest percentage swelling (Ps) of Gk-cl-poly(AA) was 796%, and 867% of AgNPs were imbibed by Gk-cl-poly(acrylic acid)-AgNPs. Synthesized bionanocomposite was used as an adsorbent material for the adsorption of methyl red (MR) dye. The effects of different reaction conditions were also optimized to attain maximum adsorption of MR dye. The maximum dye adsorption through Gk-cl-poly(AA)-AgNPs bionanocomposite was 95.7%. Diverse kinetic and isotherm models were used to study the adsorption data. The R 2 value was established as 0.987 and k2 was .02671. The greater R 2 value of second-order kinetics over first-order kinetics suggested that MR adsorption by nanocomposite is best explained by pseudo-second-order kinetics, indicating that dye adsorption occurred through chemisorption. The R 2 value was determined to be .9954. The correlation coefficient values of Gk-cl-poly(AA)-AgNPs were best fitted by the Freundlich adsorption isotherm. Overall, synthesized bionanocomposite is a proficient material for removing of MR dye from wastewater.

Evaluation of methyl red removal potential of adsorbents made from Leucaena leucocephala leaf and bark materials

The aim of this study was the investigation of how adsorbents made from Leucaena leucocephala (L. Leu) leaf and bark materials were effective in treating wastewater containing methyl red dye (MeReD). The functional groups in the phytochemical elements from the bark and leaves of L.Leu offer active surface sites and enable the adsorption mechanism. The investigations were done in batch mode. Contact time, adsorbent dose concentration, temperature, pH, and initial MeReD concentration were all examined as significant parameters impacting the sorption process. The study found that significant MeReD removal efficiency was achieved after 90 min of contact time, pH 4.0 units, 1.2 gm/L adsorbent dose concentration, 100 ppm initial MeReD quantity, and 30 oC temperature. The developed adsorbents were applied to samples gathered from dye companies in Hyderabad and Guntur. The extraction of MeReD (81.2% to 90.0%) from untreated wastewater contaminated with MeReD using developed adsorbents was very efficient.

Remediation of Methyl Red Dye from Aqueous Solutions by Using Biosorbents Developed from Floral Waste

The disposal of biological waste into water bodies is a major global concern as it leads to water pollution resulting in the loss of plenty of revenue in the cleaning of water bodies. Here, in the present research work, sacred flowers were collected, segregated, sun-dried, and powdered. The dried floral powders (marigold and rose) were characterized by field emission scanning electron microscopy (FESEM), electron diffraction spectroscopy (EDS), Fourier transforms infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The microscopy revealed the irregular spherical shape of the sheet-like structure whose size varies in microns. The EDS revealed the elemental composition which was dominated by mainly carbon and oxygen. The XRD shows the presence of carbon (10-25 ɵ) in the amorphous form and the absence of any crystalline phase in the biosorbents. The FT-IR showed peaks that conformed to the presence of functional groups like -OH and a carbonyl group. The dried powders were used as an economical and eco-friendly biosorbent for the removal of methyl red (MR) dye from the aqueous solutions by batch adsorption study. After 60 minutes of contact time, the marigold powder (MGP) and rose petal powder (RPP) showed decolorization of 61.16% and 56.08% for 2 ppm of MR dye. The kinetic revealed that the dye removal reaction does not follow the pseudo-first-order as well as the pseudo-second-order. The utilization of such waste-based biosorbents will minimize solid waste and also will provide an economical biosorbent for the removal of environmental pollutants.

Bifunctional Cu(II)-based 2D coordination polymer and its composite for high-performance photocatalysis and electrochemical energy storage.

Coordination polymers (CPs) have been widely proven as sacrificial electrode materials for energy storage applications because of their high porosity, specific surface area and tunable structural topology. In this work, a new 2D Cu(II)-based CP, formulated as [Cu2(btc)(μ-Cl)2(H2O)4]n (CP-1) (H3btc = benzene-1,3,5-tricarboxylic acid), fabrication of copper oxide nanoparticles (CuO NPs) and its composite (CuO@CP-1) were successfully synthesized using solvothermal, precipitation and mechanochemical grinding approaches. Single-crystal X-ray analysis authenticated a two-dimensional (2D) layered network of CP-1. Further, CP-1, CuO NPs and composite were characterized by diffraction (Powder-XRD), spectroscopic (FTIR), microscopic (SEM), and thermal (TGA) techniques. The porosity and surface behavior of CP-1 and the composite were demonstrated using BET analyzer. Topological simplification of CP-1 shows a 3-c connected hcb periodic net. The photocatalytic behavior of CP-1 was examined over methyl red (MR) dye in the presence of sunlight and showed a promising degradation efficiency of 96.80%. The electrochemical energy storage properties of CP-1, CuO NPs and composite were investigated using cyclic voltammetry (CV) and galvanostatic charge-discharge (GCD) analysis under aqueous 1 M H2SO4 electrolyte. The electrochemical results show better charge storage performance of CP-1 with a specific capacitance of 602.25 F g-1 at 1 A g-1 current density by maintaining a retention of up to 84.51% after 5000 cycles at 10 A g-1 current density. Comparative electrochemical studies reveal that CP-1 is a promising electrode material for energy storage.

Removal of methyl red from wastewater using a NiO@Hyphaene thebaicaseed-derived porous carbon adsorbent: kinetics and isotherm studies

In this study, the adsorption of methyl red (MR) dye from wastewater on nickel oxide (NiO) doped in porous carbon derived fromHyphaene thebaica(HT) seeds (NiO@HT derived C) as an adsorbent material was investigated.