Removal Of Brilliant Green Dye Research Articles

Isothermal and kinetic investigation of sorption efficacy of titania and bentonite nanocomposite for brilliant green dye removal for wastewater treatment

The impregnation of titania causes to generate and activate more points on surface of bentonite which is usually slightly basic in nature. That helps in the removal of cationic impurities effectively. So, their composite (TBC) is prepared and used to remove brilliant green (BG) dye as a test case here in cost-effective and ecofriendly manner by green methodology. The surface modification was analyzed by FTIR and SEM/EDX. Adsorption parameters were investigated and found that 4.54 mg/g ± 0.73 S.D of dye was removed by this composite using optimized condition. In kinetic study, pseudo-second order model justified the data. Thermodynamic value is −10.33 kJ/mol ± 0.067 indicating its exothermic and spontaneous nature of process. Desorption of BG and regeneration of titania–bentonite composite with HCl helps in its recycling and affirms that these nanocomposites are prolific, high-yielding and resourceful material for dye removal during wastewater treatment.

Enhancing brilliant green dye removal via bio composite chitosan and food-grade algae capsulated ruthenium metal-organic framework: Optimization of adsorption parameters by box-behnken design

A natural material made of chitosan (CS) and algae (food-grade algae, FGA) was cross-linked and loaded onto a ruthenium metal organic framework to create a bio-adsorbent (Ru-MOF@CS/FGA composite sponge) with the aim of adsorbing and eliminating Brilliant green (BG) from aqueous solutions. A range of methods were employed to analyze the Ru-MOF@CS/FGA composite sponge, such as X-ray photoelectron spectroscopy (XPS) for elemental analysis, Fourier transform infrared spectroscopy (FTIR) to ascertain the function groups, and scanning electron microscopy (SEM) to establish the surface morphology, and powder X-ray diffraction (PXRD) to study of single and multi-phase polycrystalline materials. Brunauer-Emmett-Teller surface area (BET) confirmed the adsorbent's high surface area and pore volume (826.85 m2/g and 1.28 cm3/g, respectively) and decreased to 475.62 m2/g and 0.74 cm3/g after adsorption. Determine the several factors that affect the adsorption process, such as pH, the adsorbent's dose, the initial BG concentration, and the effect of salinity. The adsorption process was fitted to pseudo-second-order kinetics and Langmuir isotherms. Dubinin-Radushkevich analysis revealed that the adsorption energy was 23.8 kJ/mol, indicating chemisorption as the mode of adsorption. It was discovered through examining the impact of temperature and computing positive-charged enthalpy and entropy that the adsorption process was endothermic, meaning that it increased in response to temperature. It is possible to reuse the Ru-MOF@CS/FGA composite sponge six times with acceptable efficiency, no change in its chemical composition, and comparable FT-IR, XPS, and XRD data before and after each reuse. Examine the mechanisms of adsorbent-adsorbate interaction, which may involve H-bonding, n-π stacking, electrostatic forces, and pore filling. The adsorption results were optimized with the Box Behnken-design (BBD).

Removal of Brilliant Green Dye from Aqueous Solutions Using Multi-walled Carbon Nanotubes (MWCNTs): Linear and Nonlinear Isotherm Models and Error Analysis

Current research explains the comparison of linear and nonlinear regression methods for finding the optimal isotherm study using experimental data for the adsorption of BG on multi-walled carbon nanotubes MWCNTs. BG dye maximum adsorption onto MWCNTs occurred at pH 2 and 35°C, with the apparent equilibrium reached after 15 min. In this study, five error functions were used: ERRS, Hybrid, Chi-square (χ2), ARE, and EABS. The values of error functions suggest that the Langmuir Linear type 3 is a suitable isotherm to describe the adsorption of BG on MWCNTs. The results showed that the Langmuir isotherm is a fit good isotherm to describe the adsorption process. The coefficient of non-determination (K2) showed Hybrid, and ERRS were the preferable error functions used to predict the fit of linear and nonlinear isotherm models. Compared with other studies, MWCNTs can be used as a low-cost adsorbent with low contact time for the removal of BG dye from an aqueous solution.

Development and Characterization of a Molecularly Imprinted Polymer for the Selective Removal of Brilliant Green Textile Dye from River and Textile Industry Effluents.

In this paper, we present an alternative technique for the removal of Brilliant Green dye (BG) in aqueous solutions based on the application of molecularly imprinted polymer (MIP) as a selective adsorbent for BG. The MIP was prepared by bulk radical polymerization using BG as the template; methacrylic acid (MAA) as the functional monomer, selected via computer simulations; ethylene glycol dimethacrylate (EGDMA) as cross-linker; and 2,2'-azobis(2-methylpropionitrile) (AIBN) as the radical initiator. Scanning electron microscopy (SEM) analyses of the MIP and non-molecularly imprinted polymer (NIP)-used as the control material-showed that the two polymers exhibited similar morphology in terms of shape and size; however, N2 sorption studies showed that the MIP displayed a much higher BET surface (three times bigger) compared to the NIP, which is clearly indicative of the adequate formation of porosity in the former. The data obtained from FTIR analysis indicated the successful formation of imprinted polymer based on the experimental procedure applied. Kinetic adsorption studies revealed that the data fitted quite well with a pseudo-second order kinetic model. The BG adsorption isotherm was effectively described by the Langmuir isotherm model. The proposed MIP exhibited high selectivity toward BG in the presence of other interfering dyes due to the presence of specific recognition sites (IF = 2.53) on its high specific surface area (112 m2/g). The imprinted polymer also displayed a great potential when applied for the selective removal of BG in real river water samples, with recovery ranging from 99 to 101%.

Activated carbon from noodles food waste via microwave-assisted KOH for optimized brilliant green dye removal

Activated carbon from noodles food waste via microwave-assisted KOH for optimized brilliant green dye removal

Physiochemical analysis of clay and polyoxometallate composite used for sorptive detoxification of mutagenic Brilliant Green dye

Water pollution is a grave risk to mankind. Water pollutants including organic toxins, dyes effluents, and heavy metals have posed great stress on water quality in recent years. This has necessitated the search for an affordable, eco-friendly, inexpensive, stable, and effective strategy for wastewater remediation. In this work, a pollyoxometallate K6[H2AlBW11O40].9H2O (KAB) was impregnated on kaolin clay to synthesize a clay-based nanocomposite KAB-K which was then evaluated for adsorptive removal of brilliant green dye (BG) from wastewater. The prepared composite was characterized by different techniques such as FTIR, SEM, and EDX analysis. The characterization results indicated the fine distribution of KAB on kaolin’s surface. The adsorption studies of BG involved evaluation of optimum parameters such as time contact (30 min), quantity of adsorbent (20 mg), pH (5), temperature (40 °C), and agitation speed (125 rpm). 99.5% of BG was removed by KAB-K within 30 min. The assessment of kinetic data was performed via Langmuir, Freundlich, and Temkin models. The experimental data was found to be in good agreement with the Langmuir model (R2 > 0.9965) as compared to other models. Qmax value of KAB-K (144.92 ± 0.005 mg/g) was much higher than simple kaolin (33.22 ± 0.01 mg/g). The applicability of the pseudo-second-order kinetic model suggested that the process was predominately chemisorption. KAB-K was easier to recycle and efficiently removed up to 68.7% dye in 3 subsequent cycles. Thus rapid adsorption rate, high adsorption capacity, efficient recovery, and reusability of KAB-K endorses that the synthesized composite is an effective adsorbent for wastewater pollutants.

Removal of Brilliant Green Dye from Water Using Ficus benghalensis Tree Leaves as an Efficient Biosorbent.

The presence of dyes in water stream is a major environmental problem that affects aquatic and human life negatively. Therefore, it is essential to remove dye from wastewater before its discharge into the water bodies. In this study, Banyan (Ficus benghalensis, F. benghalensis) tree leaves, a low-cost biosorbent, were used to remove brilliant green (BG), a cationic dye, from an aqueous solution. Batch model experiments were carried out by varying operational parameters, such as initial concentration of dye solution, contact time, adsorbent dose, and pH of the solution, to obtain optimum conditions for removing BG dye. Under optimum conditions, maximum percent removal of 97.3% and adsorption capacity (Qe) value of 19.5 mg/g were achieved (at pH 8, adsorbent dose 0.05 g, dye concentration 50 ppm, and 60 min contact time). The Langmuir and Freundlich adsorption isotherms were applied to the experimental data. The linear fit value, R2 of Freundlich adsorption isotherm, was 0.93, indicating its best fit to our experimental data. A kinetic study was also carried out by implementing the pseudo-first-order and pseudo-second-order kinetic models. The adsorption of BG on the selected biosorbent follows pseudo-second-order kinetics (R2 = 0.99), indicating that transfer of internal and external mass co-occurs. This study surfaces the excellent adsorption capacity of Banyan tree leaves to remove cationic BG dye from aqueous solutions, including tap water, river water, and filtered river water. Therefore, the selected biosorbent is a cost-effective and easily accessible approach for removing toxic dyes from industrial effluents and wastewater.

Removal of Brilliant Green dye in aqueous solution using synthetic coagulation and flocculation technique

Removal of Brilliant Green dye in aqueous solution using synthetic coagulation and flocculation technique

Synthesis of CTAB modified ferrite composite for the efficient removal of brilliant green dye

Synthesis of CTAB modified ferrite composite for the efficient removal of brilliant green dye

Deliberated system of ternary core–shell polythiophene/ZnO/MWCNTs and polythiophene/ZnO/ox-MWCNTs nanocomposites for brilliant green dye removal from aqueous solutions

In recent times, great attention has been given to developing extremely competent adsorbents for removing organic dyes from wastewater. Thus, to enhance their adsorption capability, a general strategy based on adsorbent surface modification with polymers has been proposed. This report demonstrates the potential of a ternary mixture of polythiophene/zinc oxide/multiwalled carbon nanotubes (PTh/ZnO/MWCNTs) and tertiary PTh/ZnO/oxidized multiwalled carbon nanotubes (ox-MWCNTs), which have been incorporated via an in-situ method of chemical polymerization through a simplistic two-way method. SEM and EDX outcomes show that ZnO and MWCNTs, or ox-MWCNTs, are well covered with PTh. Raman, FTIR, and XRD demonstrated the effective synthesis of PTh/ZnO/ox-MWCNTs and PTh/ZnO/MWCNTs nanocomposites with good interfacial interactions between the components. This report also examined the potential of these nanocomposites to remove brilliant green (B.G.) (a toxic dye) from a water solution. In addition, the influence of adsorption parameters, such as concentration, adsorption temperature, pH, and stirring time, was evaluated. B.G.’s adsorption percentage was affected by concentration, temperature, and time. B.G.’s maximum adsorption potential was 9.1 mg g −1 for PTh/ZnO/ox-MWCNTs and 8.3 mg g −1 for PTh/ZnO/MWCNTs, demonstrating the nanocomposites’ (NCs) potential for effective B.G. adsorption. The outcomes of the dye removal show that the dye removal process was spontaneous and endothermic, as evaluated by thermodynamic and kinetic criteria.

Decontamination of cationic dye brilliant green from the aqueous media

Brilliant green is a synthetic and toxic dye that is currently being utilized for various purposes, such as dying paper, leather, wool, and silk. The present study demonstrates the activated carbon preparation from waste banana peels as well as its usefulness to remove cationic dye brilliant green from aqueous medium. The dye removal was examined under a set of diverse conditions. The obtained results indicate that dye adsorption was maximum after 60 min of contact time. The removal of brilliant green dye enhances due to a rise in adsorbent dosage and becomes quantitative at 15 min of adsorbent dose. At a pH of 2, the uptake of dye by adsorbent was maximum, which decreases with the rise in pH. Langmuir isotherm was slightly better fitted than Freundlich model at varying temperatures. The experimental value of adsorption capacity was > 900 mg/g, which was observed quite close with pseudo-second-order model for brilliant green adsorption on the prepared adsorbent based on banana peel. Thermodynamic studies suggested exothermic, spontaneous, and favorable adsorption process for brilliant green dye. The adsorbent prepared in the present study can be incorporated for the treatment of wastewater contaminated with brilliant green as well as other toxic pollutants.

Sequestration of Brilliant Green Dye by Coriander Leaf: Isotherm and Kinetic Studies

Adsorption process has been performed to investigate the potentiality of coriander leaf to sequester brilliant green (BG) dye from the aqueous phase. Coriander leaf of 75-micron size has been characterized by SEM, BET, FTIR etc. In the present study, emphasis has been given on the removal of BG dye under different conditions viz. dose of biomaterial (10.0 - 100.0 mg), pH (2.0 - 12.0) and dye concentration (10.0 - 100.0 mg/L) by Taguchi optimization. The batch experiments have been conducted at 25 ℃ with stirring speed of 120.0 rpm. The kinetic study is performed at two different temperatures, 30 and 40 ℃. The batch adsorption process for sequestration of the dye followed pseudo-2nd order kinetics (R2 = 0.99). The study also reveals that the Freundlich isotherm is the best fitted (R2 = 0.96) model. The adsorption capacity is 68.49 mg/g and the overall removal efficiency is above 80.0 %.
 HIGHLIGHTS
 
 The coriander leaf (75-micron) has been investigated as an effective adsorbent for Brilliant green dye in aqueous environment
 Effects of physico-chemical properties of adsorbent (BET, pZC, zeta potential, bulk density, moisture, ash etc.) and the role of several operating parameters (contact time, pH, dose and concentration) have been investigated
 Langmuir, Freundlich isotherm models and pseudo-second-order kinetic model favour the adsorption phenomena
 L9 orthogonal array (3X3) of Taguchi optimization study with ANOVA analysis predicts the role of control parameters
 
 GRAPHICAL ABSTRACT

Effect of Bimetallic Fe-Ni MOFs as a Promising Nano-Adsorbent in the Removal of Brilliant Green Dye from Aqueous Solution and Multi-Agent Systems of Brilliant Green Dye and Ink Effluent from Flexographic Printing

Effect of Bimetallic Fe-Ni MOFs as a Promising Nano-Adsorbent in the Removal of Brilliant Green Dye from Aqueous Solution and Multi-Agent Systems of Brilliant Green Dye and Ink Effluent from Flexographic Printing

An artificial neural network combined with response surface methodology approach for modelling and optimization of the electro-coagulation for cationic dye

An artificial neural network (ANN) approach with response surface methodology (RSM) technique has been applied to model and optimize the removal process of Brilliant Green dye by batch electrocoagulation process. A multilayer perceptron (MLP) - ANN model has been trained by four input neurons which represent the reaction time, current density, pH, NaCl concentration, and two output neurons representing the dye removal efficiency (%) and electrical energy consumption (kWh/kg). The optimized hidden layer neurons were obtained based on a minimum mean squared error. The batch electrocoagulation process was optimized using central composite design with RSM once the ANN network was trained and primed to anticipate the output. At optimized condition (electrolysis time 10 min, current density 80 A/m2, initial pH 5 and electrolyte NaCl concentration 0.5 g/L), RSM projected decolorization of 98.83% and electrical energy consumption of 14.99 kWh/kg. This study shows that the removal of brilliant green dye can be successfully carried out by a batch electrocoagulation process. Therefore, the process is successfully trained by ANN and optimized by RSM for similar applications.

Isothermal and Kinetic Investigation of Exploring the Potential of Citric Acid-Treated Trapa natans and Citrullus lanatus Peels for Biosorptive Removal of Brilliant Green Dye from Water

Trapa natans peels (TNPs) and Citrullus lanatus peels (CLPs) were utilized for the biosorptive removal of brilliant green dye (BGD), after modifying with citric acid. Characterization and surface morphology were studied by Fourier transform infrared spectroscopy and scanning electron microscopy. For the removal of BGD by citric acid-treated Trapa natans peels (CA-TNPs), the optimum conditions were obtained with adsorbent dose 0.8 g, contact time 25 minutes, initial pH 5, temperature 30°C, and agitation speed 100 rpm, while for the citric acid-treated Citrullus lanatus peels (CA-CLPs), adsorbent dose 0.8 g, contact time 20 minutes, pH 5, temperature 30°C, and agitation speed 100 rpm gave optimum results. The qmax values obtained were 108.6, 128, 144.9, and 188.68 mg/g for R-TNP, CA-TNP, R-CLP, and CA-CLP, respectively, while the correlation coefficient (R2) values obtained were 0.985, 0.986, 0.985, and 0.998 for R-TNP, CA-TNP, R-CLP, and CA-CLP, respectively. These favor the Langmuir isotherm and pseudo-second-order kinetics, with negative (ΔG0) values of all adsorbents, determining that the adsorption phenomenon is exothermic and spontaneous in nature. Both citric acid-treated peels of Trapa natans and Citrullus lanatus were found suitable for bulk-scale eradication of hazardous, toxic, and carcinogenic basic cationic dyes.

A novel ultrasonic assisted-reverse micelle procedure to synthesize Eu-MOF nanostructure with high sono/sonophotocatalytic activity: a systematic study for brilliant green dye removal

A novel ultrasonic assisted-reverse micelle procedure to synthesize Eu-MOF nanostructure with high sono/sonophotocatalytic activity: a systematic study for brilliant green dye removal

Environmentally friendly adsorbent derived from rock melon skin for effective removal of toxic brilliant green dye: linear versus non-linear analyses

ABSTRACT This present study investigated the adsorption characteristics of rock melon skin (RMS) as a promising adsorbent for the removal of toxic brilliant green (BG) dye. The functional group and surface morphology analyses were carried out to characterise the adsorbent. The RMS-BG equilibrated within 30 minutes of contact time and showed stability under the pH range (4–10) studied. Adsorption of BG was not only unaffected but was enhanced in the presence of NaCl. Adsorption isotherm data analysed using six isotherm models, namely Langmuir, Freundlich, Temkin, Dubinin-Radushkevich, Redlich-Peterson and Sips, pointed to the Freundlich being the best model. The maximum adsorption capacity (qmax ) of 118.0 mg g−1, based on the Langmuir model, was higher when compared to some reported natural and chemically modified adsorbents. Adsorption of BG onto RMS obeyed the pseudo second order kinetics (R 2 = 0.9976). Thermodynamics studies indicated the adsorption process was endothermic in nature. The spent RMS was able to be regenerated and reused whilst maintaining high adsorption of >95% BG even at the 5th cycle when base treatment was used. Comparison of linear and non-linear analyses indicated that the kinetics data fitted better with non-linear regression method whilst adsorption isotherm was better suited using linear regression method. The above findings demonstrate the potential application of RMS as a low-cost effective adsorbent for the removal of BG dye in wastewater treatment.

Removal of brilliant green dye from synthetic wastewater under batch mode using chemically activated date pit carbon.

In this research, a single-stage batch adsorber was designed for removal of brilliant green dye (BG) from aqueous solutions using activated carbon derived from date pits (ADPC) based on the Freundlich isotherm which was the best-fitted isotherm model. Experimental work was carried out within the range of 10–50 ppm initial dye concentration to determine the optimum operating conditions which were 55 min contact time, 0.06 g adsorbent mass, 25 °C, and pH = 8. Process kinetics was best-fitted with the pseudo-second order model, which revealed that the intra-particle diffusion stage is the rate-controlling stage for the process. The process efficiency was assessed by infrared spectroscopy (FTIR), scanning microscopy (SEM), X-ray spectroscopy (EDXS), and Brunauer–Emmett–Teller (BET) where the latter showed that the specific surface area of the adsorbent is 311.38 m2 g−1, which gives a favorable maximum monolayer adsorption capacity (77.8 mg g−1). The thermodynamic study proved that BG adsorption on ADPC was physiosorptive (ΔG = −5.86 kJ mol−1) and spontaneous at low temperature (ΔH = −17.7 kJ mol−1, ΔS = −0.04 kJ mol−1 K−1).

A novel ultrasonic reverse micelle-assisted electrospun efficient route for Eu-MOF and Eu-MOF/CA composite nanofibers: a high performance photocatalytic treatment for removal of BG pollutant.

Considering the novel applications of metal organic frameworks (MOFs) in photocatalytic fields, in this study, new nanostructures of Eu-MOF have been synthesized using effective, facile, cost-effective, and fast reverse micelle (RM) as well as ultrasound assisted reverse micelle (UARM) methods under the optimal conditions. In order to improve the properties, these nanostructures were extended in the form of fibrous networks. To find nanostructure with distinctive features, thermogravimetric analysis, Fourier transform infrared spectroscopy, field emission scanning electron microscopy, X-ray diffraction, and N2 adsorption/desorption analysis were applied. The results revealed that the samples synthesized by UARM method had a crystallite size of 27.5 nm and thermal stability of 252 °C. Therefore, the UARM Eu-MOF sample was selected as the desirable sample. Also, its application was studied as a novel nanophotocatalyst with the ideal properties in the field of brilliant green dye removal. The photocatalytic results indicated the influence of initial dye concentration, pH, photocatalyst dosage, and contact time parameters on the photocatalytic properties with an efficiency of 99.80%. This study provides a new strategy for developing desirable methods, extended structures, and the photocatalytic applications of these products.

Electrochemical removal of brilliant green dye from wastewater

Dyes are one of the most widely used materials in many industrial fields as coloring agents such as textile, wood, and food manufacturing. As these dyes end up in a water source, this high rate of dyes use represents one of the severe risks to the environment and health organizations. Most of the dyes are considered as highly toxic compounds and dangerous to the environment and human health as it consists of heavy metals, carcinogenic elements, oxygen – absorbing chemicals, and other toxic compounds that need to be well treated before discharge them back to environment. As a result, federal legislations have directed that all industrials that waste dyes-containing effluents to ensure a full dyes removal before discharging their effluents back to water bodies. Industries have applied many different treatment methods including physical, chemical, and biological methods in order to meet the required legislations. In recent years, many industries started to use electrocoagulation as the main treatment method. This study is focusing on using electrocoagulation (EC) method to remediate artificial colored effluents from coloring agents (brilliant green dye (BG dye) as a model). Electrocoagulation reactor, uses aluminum electrodes, was employed to remove this dye under different initial pH (40-10.0), direct currents (DC) (244-732 mA), and spaces between electrodes (SBE) (4-12 mm). According to the findings obtained, EC was highly efficient in treatment of colored effluents; 95.3% of BG dye was removed at treatment time, SBE, DC and pH of 30 minutes, 4 mm, 488 mA and 7.0, respectively.