Facile fabrication of chitosan-based adsorbents for effective removal of cationic and anionic dyes from aqueous solutions

Cui, Jianlan; Xiao, Wang; Yu, Siyuan; Zhong, Congshan; Wang, Ning; Meng, Jian

doi:10.1016/j.ijbiomac.2020.10.161

Cited by 24 publications

(6 citation statements)

References 39 publications

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“…After five consecutive adsorption-desorption cycles, the efficiency of dye removal by the membrane was maintained above 97%. 53 Cui et al 54 obtained a grafted-crosslinked CS for the treatment WW containing organic dyes by inserting poly(acrylic acid) (PAA) and polyacrylamide (PAM) altogether on the CS chain to give PAA-PAM-CS, then coordinated PAA-PAM-CS with Fe(III) to obtain Fe-PAA-PAM-CS (g-CS). SEM, EDS, XRD, TGA, FT-IR, and nitrogen adsorption and desorption studies were used to characterize the two adsorbents, PAA-PAM-CS and g-CS, completely.…”

Section: Grafted Chitosanmentioning

confidence: 99%

“…It can be seen that all three materials are irregular in shape with relatively flat surfaces. 54 In another study 55 millimeter-scale hollow spheres made from CS, dimethyl diallyl ammonium chloride (DMDAAC), and carboxymethyl cellulose (CM-Cell), were prepared via a simple one-pot process of physical stirring and chemical grafting to effectively and selectively remove organic dyes from WW. By introducing the positively charged monomer of DMDAAC, the cationic hollow spheres showed an excellent adsorption capacity toward the organic dyes.…”

Section: Grafted Chitosanmentioning

confidence: 99%

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Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

2022

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Section: Grafted Chitosanmentioning

confidence: 99%

Section: Grafted Chitosanmentioning

confidence: 99%

Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

2022

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“…Cs has a high effectiveness for anionic dye adsorption over cationic dyes because of its cationic nature. With progress in science and technology, innovative strategies for improving Cs adsorption performance towards cationic dyes have emerged [13][14][15]. Additionally, pH sensitivity and swelling susceptibility limit the practical use of pure chitosan.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Cationic Crystal Violet and Anionic Reactive Yellow Dyes using eco-friendly Chitosan Functionalized by Talc and Cloisite 30B

Kandil

Ali

2022

J Polym Environ

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Designing adsorbent materials that can effectively remove many types of organic dyes is crucial because of the wide diversity of synthetic dyes found in wastewater. Thus, this study presents the synthesis of economic and eco-friendly adsorbent composites composed of chitosan (Cs), talc (T), and Cloisite 30B clay (C) to remove both cationic crystal violet (CV) and anionic reactive yellow 145 (RY) dyes for the first time. Cs was functionalized with T and subsequently the CsTC1 and CsTC2 composites were prepared by sensitizing the obtained CsT with different weight ratios of Cloisite 30B (C). X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), N2 adsorption–desorption isotherm, and zeta potential analysis were employed to characterize the materials. The addition of T to Cs matrix improves the thermal stability, pore size, and pore volume with respect to pure Cs. The effect of C inclusion was examined by measuring the affinity of the prepared composites towards adsorption of cationic CV and anionic RY dyes in comparison to pure Cs and CsT composite. The adsorption results in a single dye solution revealed that the CsTC1 composite is the most effective adsorbent for removal of RY dye with 76.9 mg/g adsorption capacity, whereas the CsTC2 composite exhibited the highest adsorption activity for CV dye (37.03 mg/g). Furthermore, RY and CV co-adsorption on CsTC composites was tested from a mixed dye solution. The adsorption kinetics of RY and CV adsorption followed the pseudo second order model. Langmuir isotherm model described the experimental adsorption data better than the Freundlich, Dubinin–Radushkevich, and Temkin isotherm models, indicating a monolayer sorption process for both dyes. The proposed mechanism for RY and CV adsorption using CsTC composites was investigated.

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“…One of the major problems associated with dyes are its nonbiodegradability 6 – 8 . Dyes dumped from various industries, remains in environment for a longer period of time and destruct the ecosystem 9 – 12 . Perhaps, water pollution from dyeing industry is one of the severe pollutions faced by the world.…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly and low-cost bio adsorbent for efficient removal of methylene blue from aqueous solution

Radoor

Karayil²,

Jayakumar

et al. 2022

Sci Rep

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A novel bio adsorbent was fabricated from turmeric, polyvinyl alcohol and carboxymethyl cellulose for MB dye removal. The physicochemical, antibacterial and biodegradable nature of the film was evaluated using scanning electron microscopy, optical microscopy, universal testing machine, water contact angle, thermogravimetric analysis, Fourier transform infrared spectroscopy, X-ray diffraction, agar disc diffusion method and soil degradability. The inclusion of turmeric into PVA/CMC film improves the biodegradability, antibacterial activity and thermomechanical property of the films. PVA/CMC/TUR film displayed good MB adsorption capacity (qe: 6.27 mg/g) and maximum dye adsorption (R%; 83%) and was achieved at initial dye concentration of 10 mg/L with contact time 170 min at room temperature. The adsorption data of MB on PVA/CMC/TUR film was evaluated using four models Langmuir, Freundlich, Temkin and D-R isotherms. The different kinetic of adsorption (pseudo-first order, pseudo-second order and intraparticle diffusion model) was also applied for adsorption of MB on the films. The experimental result suggests that PVA/CMC/TUR films are an alternate cheap adsorbent for water treatment.

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Facile fabrication of chitosan-based adsorbents for effective removal of cationic and anionic dyes from aqueous solutions

Cited by 24 publications

References 39 publications

Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

Chitosan- or glycidyl methacrylate-based adsorbents for the removal of dyes from aqueous solutions: a review

Simultaneous Removal of Cationic Crystal Violet and Anionic Reactive Yellow Dyes using eco-friendly Chitosan Functionalized by Talc and Cloisite 30B

Ecofriendly and low-cost bio adsorbent for efficient removal of methylene blue from aqueous solution

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