Uptake of methylene blue on divinylbenzene cross-linked chitosan/maleic anhydride polymer by adsorption process

Liu, Xiaolin; Zhang, Yong; Jiang, Hui; Yang, Fan; Zhang, Lin

doi:10.1016/j.colsurfa.2021.127424

Cited by 31 publications

(2 citation statements)

References 60 publications

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“…Specically, hydrogen bonds are formed between the hydrogen atom of the EDC molecule's hydroxyl group and the oxygen-containing functional groups within the adsorber particles. 49,50 These hydrogen bonds signicantly enhance the overall adsorption of EDCs to the adsorber particles, thus improving the effectiveness of the adsorption process.…”

Section: Membrane Characterizationmentioning

confidence: 99%

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Niavarani,

Breite,

Ulutaş

et al. 2023

RSC Adv.

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Section: Membrane Characterizationmentioning

confidence: 99%

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Niavarani,

Breite,

Ulutaş

et al. 2023

RSC Adv.

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“…Cross-linking reaction with various crosslinking agents can offer better chemical stability and mechanical strength for CS [25]. Therefore, cross-linked CS is considered a promising alternative adsorbent for various types of water contaminants such as methylene blue dye [26], uranyl ions [27], tetracycline [28], malachite green and indigo carmine days [29], Ni (II) and Cd (II) ions [30]. However, the crosslinking approach reduces the adsorption capacity of CS by limiting its reactive groups [31].…”

Section: Introductionmentioning

confidence: 99%

Quaternary biocomposite of chitosan-polyvinyl alcohol/food grade algae/ montmorillonite clay for cationic methyl violet 2B dye removal: Optimization and desirability functions

Sando,

Jawad,

Farhan

2024

Preprint

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A quaternary composite adsorbent of chitosan-polyvinyl alcohol/food grade algae/ montmorillonite clay (CS-PVA/FGA/MMT) was synthesized by hydrothermal process to be a promising adsorbent for the removal of cationic methyl violet 2B dye (MV 2B). The adsorption working variables including CS-PVA/FGA/MMT dosage (A: 0.02–0.1 g/100 mL), pH of the dye solution (B: 4–10) and contact duration (C: 20–480 min) were optimized using response surface methodology with Box-Behnken design (RSM-BBD). The optimal conditions of the adsorption key parameters were confirmed by desirability function test and identified to be CS-PVA/FGA/MMT dosage of 0.099 g/100 mL and solution pH of 8. The equilibrium adsorption studies revealed that the adsorption of MV 2B dye on CS-PVA/FGA/MMT surface follows the Langmuir isotherm model and the pseudo-second-order kinetic model. The highest adsorption capacity of CS-PVA/FGA/MMT towards MV 2B was determined to be 105.7 mg/g at 25 ⁰C based on the Langmuir isotherm model parameters. The suggested mechanism of MV 2B adsorption by CS-PVA/FGA/MMT can be assigned to the various possible interactions such as electrostatic forces, n-π stacking, and H-bonding. This study shows that the synthesized CS-PVA/FGA/MMT material possesses a unique structure and preferable adsorption capabilities towards cationic dye. Therefore, it offers a practical solution for removing harmful cationic dyes from contaminated wastewater.

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Adsorptive elimination of methylene blue dye from aqueous solution by chitosan‐nSiO₂ nanocomposite: Adsorption and desorption study, scale‐up design, statistical, and genetic algorithm modeling

Bhattacharya,

Bar,

Rajbansi

et al. 2023

Env Prog and Sustain Energy

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Heavy metals and organic dyes in water in concentrations exceeding the tolerable limit are unsafe for aquatic life and humans. Chitosan nanocomposites show a potential adsorption capacity to organic dyes. The present study encompasses the preparation of chitosan‐nSiO2 nanocomposites (CSNC) with different weight ratios of chitosan to nSiO2 and its application in the methylene blue (MB) dye adsorption. The nanocomposites were characterized with the help of SEM, BET, FTIR, XRD, and TGA. The adsorption experimentation was executed in batch mode under varying experimental conditions. Several isotherm and kinetic models were analyzed with the experimental data, and thermodynamic conditions required for adsorption were also determined. Maximum Langmuir adsorption capacities (qL) of the adsorbents for MB varied in the range of 21.32–31.34 mg g−1. The pseudo‐second‐order model was the best‐fitted kinetic model concerning all three adsorbents. The statistical modeling using multiple polynomial regression (MPR) for CWS CSNC1‐1 and CSNC2‐1 yielded the equations with R‐square ranging from 0.984 to 0.996. For GA modeling, it is more than 0.999. So, the efficient employment of statistical modeling, and genetic algorithms has also been achieved.

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Uptake of methylene blue on divinylbenzene cross-linked chitosan/maleic anhydride polymer by adsorption process

Cited by 31 publications

References 60 publications

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Quaternary biocomposite of chitosan-polyvinyl alcohol/food grade algae/ montmorillonite clay for cationic methyl violet 2B dye removal: Optimization and desirability functions

Adsorptive elimination of methylene blue dye from aqueous solution by chitosan‐nSiO₂ nanocomposite: Adsorption and desorption study, scale‐up design, statistical, and genetic algorithm modeling

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Uptake of methylene blue on divinylbenzene cross-linked chitosan/maleic anhydride polymer by adsorption process

Cited by 31 publications

References 60 publications

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Enhanced EDC removal from water through electron beam-mediated adsorber particle integration in microfiltration membranes

Quaternary biocomposite of chitosan-polyvinyl alcohol/food grade algae/ montmorillonite clay for cationic methyl violet 2B dye removal: Optimization and desirability functions

Adsorptive elimination of methylene blue dye from aqueous solution by chitosan‐nSiO2 nanocomposite: Adsorption and desorption study, scale‐up design, statistical, and genetic algorithm modeling

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Product

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Adsorptive elimination of methylene blue dye from aqueous solution by chitosan‐nSiO₂ nanocomposite: Adsorption and desorption study, scale‐up design, statistical, and genetic algorithm modeling