Synthesis of Maleic Acid/Polyethylene Glycol (MA/PEG) Nano-Silver Composite Hydrogel Adsorbent for Removal of Chromium (VI) Ions from Wastewater

IF 4.7 3区工程技术 Q2 ENGINEERING, ENVIRONMENTAL

Journal of Polymers and the Environment Pub Date : 2025-05-02 DOI:10.1007/s10924-025-03577-6

S. Sudarsan, S. Mullai Venthan, P. Senthil Kumar, Bakiyanathan Andrews, J. P. Shebaz Ahmed, E. A. Trofimov, Gayathri Rangasamy

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Abstract

The present work, simple sol-gel polymerization technique was used to produce novel polymeric nanocomposite materials made up of Maleic Acid / Polyethylene Glycol / Silver (MA/PEG/Ag). It was effectively used as adsorbents to eliminate chromium (VI) (Cr (VI) ion from wastewater. Swelling behaviour was explored with various pH solutions and the maximum swelling equilibrium (%) 3500 acquired in basic pH solution. The modification of functional group and rough cavity surface morphology of MA/PEG/Ag nanocomposite hydrogel was characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) analysis. Transmission electron microscopy (TEM) was used to examine the spherical shape of nanoparticles ranging from 50 nm to 200 nm. The synthesized MA/PEG/Ag nanocomposite hydrogel is also utilized for the removal of Cr (VI) and calculating adsorption efficacy. Further, the effect of pH, adsorbent dosage and contact time were also examined. Maximum 94.8% of removal of Cr (VI) ion carried out at pH 10 with a maximum adsorption capacity of 297 mg/g was assessed by Langmuir adsorption isotherm. The optimum done at pH 10–12, contact time 240 min with an adsorbent dosage of 1.2 g for the removal of Cr (VI). Hence, the acquired results enabled to evaluate the feasibility to utilize the MA/PEG/Ag nanocomposite hydrogel for the elimination of Cr (VI) ion from wastewater through adsorption process.

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马来酸/聚乙二醇（MA/PEG）纳米银复合水凝胶吸附剂的合成及其对废水中铬（VI）离子的去除

本文采用简单的溶胶-凝胶聚合技术制备了马来酸/聚乙二醇/银（MA/PEG/Ag）的新型聚合物纳米复合材料。它可以作为吸附剂有效地去除废水中的铬（VI）（Cr (VI)）离子。研究了不同pH溶液的溶胀行为，在碱性溶液中获得了最大溶胀平衡（%）3500。采用傅里叶变换红外光谱（FTIR）和扫描电镜（SEM）对MA/PEG/Ag纳米复合水凝胶的官能团修饰和粗糙腔表面形貌进行了表征。采用透射电子显微镜（TEM）对粒径在50 ~ 200 nm之间的球形纳米颗粒进行了观察。利用合成的MA/PEG/Ag纳米复合水凝胶对Cr （VI）进行了去除，并计算了吸附效果。考察了pH、吸附剂用量、接触时间等因素对吸附效果的影响。Langmuir吸附等温线测定了在pH为10时，Cr （VI）离子的最大去除率为94.8%，最大吸附量为297 mg/g。在pH 10 ~ 12，接触时间240 min，吸附剂用量为1.2 g的条件下，对Cr （VI）的去除效果最佳。因此，所获得的结果可以评估利用MA/PEG/Ag纳米复合水凝胶通过吸附工艺去除废水中Cr （VI）离子的可行性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Polymers and the Environment 工程技术-高分子科学

CiteScore

9.50

自引率

7.50%

发文量

297

审稿时长

9 months

期刊介绍： The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.