Adsorption ability evaluation of the poly(methacrylic acid-co-acrylamide)/cloisite 30B nanocomposite hydrogel as a new adsorbent for cationic dye removal

Safarzadeh, Hamid; Peighambardoust, Seyed Jamaleddin; Mousavi, Seyed Hamed; Mohammadi, Réza; Foroutan, Rauf

doi:10.1016/j.envres.2022.113349

Cited by 87 publications

(29 citation statements)

References 41 publications

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“…4d) exhibited a higher thermal stability than the unmodified Cs. This demonstrates that the incorporation of Closite 30B improves the thermal stability of polymer matrix in accordance with previous results [4,6]. The hybrid composites showed approximately the same weight loss and there were no significant differences in the weight loss curves.…”

Section: Tga Analysissupporting

confidence: 91%

“…Table 2 provides the mass loss for all samples at 700 °C. This demonstrated that the thermal stability of CsTC composites was improved after the incorporation of Cloisite 30B, as recently reported by Safarzadeh et al [4].…”

Section: Tga Analysissupporting

confidence: 86%

“…Nowadays, remediation of contaminated water from synthetic dyes is considered one of the most important challenges facing all countries due to the harmful effects of these dyes on the environment [1,2]. Synthetic dyes are found in wastewater as a result of improper discharge of dyes from the textile, leather, paper, rubber, plastics, and pharmaceuticals industries [3,4]. The presence of these dyes in the wastewater stream can cause a variety of environmental issues because they are carcinogenic and mutagenic to living organisms even at low concentrations [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Chitosan/polylactide composite was sensitized with different wt% of Cloisite 30B to control release of the anticancer drug [42]. Recently, Safarzadeh et al [4] used Cloisite 30B to improve of the adsorption properties of poly(methacrylic acid-co-acrylamide) hydrogel towards MB dye. Recently, Sujithra and Arthanareeswaran modified Cloisite 30 B with PEO after that polyether sulfone/f-(PEO-Cloisite) nanocomposite membranes were prepared for the removal of dyes and salts from waste water [43].…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Tga Analysissupporting

confidence: 91%

Section: Tga Analysissupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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show abstract

“…Nowadays, remediation of contaminated water from synthetic dyes is considered one of the most important challenges facing all countries due to the harmful effects of these dyes on the environment [1,2]. Synthetic dyes, industrial raw materials, are found in wastewater as a result of improper discharge of dyes from the textile, leather, paper, rubber, plastics, and pharmaceuticals industries [3,4]. The presence of these dyes in wastewater stream can lead to many environmental problems as they have carcinogenic and mutagenic properties on living organisms even at low concentrations [5,6].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of cationic crystal violet and anionic reactive yellow by using eco- friendly hybrid chitosan- talc-cloisite 30B composite

Kandil

Ali

2022

Preprint

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Due to the wide variety of synthetic dyes present in wastewater, there has been an urgent need to develop adsorbent materials to remove both cationic and anionic dyes. Since the development of such materials is still challenge, this paper is an attempt to prepare an economic and eco-friendly adsorbent material from chitosan to remove both cationic and anionic dyes from aqueous solution. Hence, hybrid composites from chitosan (Cs), talc powder (T) and cloisite 30B (C) with different weight ratios of 1: 2: 0, 1: 2: 1 and 1: 2: 2 were prepared. Chemical structure, thermal stability and surface morphology of the prepared composites were studied by using FTIR, TGA and SEM. The affinity of the prepared composites towards adsorption of cationic crystal violet (CV) and anionic reactive yellow 145 (RY) dyes was investigated. The adsorption results showed that the composite with a weight ratio of 1: 2: 1 is the most effective adsorbent for removal of RY dye with 76.9 mg/g adsorption capacity, whereas the composite with a weight ratio of 1: 2: 2 exhibited the highest adsorption activity for CV dye (37.03 mg/g). The adsorption of RY and CV on these composites followed the pseudo second order model. The 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.

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A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

Maia,

Pereira,

da Silva

et al. 2024

J of Applied Polymer Sci

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The efficient removal of potential toxic elements (PTEs) from aqueous systems is an important challenge in water purification and industrial effluent treatment. Starch‐based hydrogels have shown promise in this context due to their unique properties, such as high absorption capacity and water retention. This work synthesized a novel hydrogel with and without activated charcoal (AC) from banana peel (5 wt.%) and trisodium citrate as a crosslinking agent and starch to remove PTEs. These hydrogels were characterized by Fourier‐transformed infrared (FTIR), scanning electron microscopy, TGA, XRD, water absorption, and zero‐charge point techniques. Subsequently, the affinity of AC, neat hydrogel, and the composite hydrogel for removing Cr6+, Cd2+, Ni2+, Mn2+, Zn2+, and Cu2+ in aqueous solution was evaluated. FTIR confirmed a crosslinking reaction between the starch molecules and the crosslinking agent (trisodium citrate). Besides, the addition of hydrogel+5%AC altered the crosslinking process. Adding AC to the hydrogel composite increased crystallinity, thermal stability, and porous size. The highest removal efficiency of neat hydrogel and hydrogel+5%AC was for Cr6+, obtaining 83.2% and 98.5%, respectively. As for the AC, the removal of Cu2+ was satisfactory, with 80.4%. Thus, hydrogel+5%AC proves to be a highly viable adsorbent for posttreatment of wastewater due to its ability to efficiently remove PTEs.

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Adsorption ability evaluation of the poly(methacrylic acid-co-acrylamide)/cloisite 30B nanocomposite hydrogel as a new adsorbent for cationic dye removal

Cited by 87 publications

References 41 publications

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

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

Simultaneous removal of cationic crystal violet and anionic reactive yellow by using eco- friendly hybrid chitosan- talc-cloisite 30B composite

A novel starch‐based composite hydrogel enhanced by activated charcoal from the banana peel for water decontamination

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