Chitosan-Based Adsorbents and Catalysts for Removal of Toxic Pollutants from Water and Wastewater

IF 2.8 3区化学 Q2 CHEMISTRY, APPLIED

Topics in Catalysis Pub Date : 2024-07-06 DOI:10.1007/s11244-024-01979-9

Aqsa Rukhsar, Zeenat Fatima Iqbal, Muhammad Shahzeb Khan, Syeda Alvia Zainab, Shahid Nawaz, Tak H. Kim, Ghulam Mustafa, Aldona Balčiūnaitė

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Abstract

The discharge of industrial, agricultural, and domestic waste into water bodies has raised significant environmental concerns, necessitating effective water treatment techniques. Among the various strategies employed for pollutant removal, adsorption has emerged as a promising approach for the removal of various inorganic and organic pollutants. Chitosan, a biopolymer derived from chitin, has garnered considerable attention for removing a variety of harmful environmental contaminants due to its unique characteristics and active adsorption sites. This review provides a comprehensive analysis of utilizing chitosan-based adsorbents and catalytic materials for mitigation of various emerging contaminants in wastewater treatment. A particular emphasis is given on removing contaminants such as heavy metals, pharmaceutical compounds, organic dyes, phenolic compounds, pesticides, and the photocatalytic degradation of organic pollutants. The study also encompasses various factors influencing adsorption effectiveness, including electrostatic attraction, ion exchange, coordination, complexation, hydrogen bonding, and hydrophobic interactions. In addition, the effect of pH, contact time, initial concentration, and adsorbent dosage on adsorption capacity was also described. Furthermore, this comprehensive study explores the underlying physical and chemical interactions governing pollutant removal for a sustainable water treatment.

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用于去除水和废水中有毒污染物的壳聚糖基吸附剂和催化剂

向水体排放工业、农业和家庭废物引起了人们对环境的极大关注，因此需要有效的水处理技术。在去除污染物的各种策略中，吸附已成为去除各种无机和有机污染物的一种很有前途的方法。壳聚糖是一种从甲壳素中提取的生物聚合物，因其独特的特性和活性吸附位点，在去除各种有害环境污染物方面备受关注。本综述全面分析了如何利用壳聚糖基吸附剂和催化材料来减少废水处理中各种新出现的污染物。其中特别强调了重金属、药物化合物、有机染料、酚类化合物、杀虫剂等污染物的去除以及有机污染物的光催化降解。研究还包括影响吸附效果的各种因素，包括静电吸引、离子交换、配位、络合、氢键和疏水相互作用。此外，还阐述了 pH 值、接触时间、初始浓度和吸附剂用量对吸附容量的影响。此外，这项综合研究还探讨了影响污染物去除的基本物理和化学相互作用，以实现可持续的水处理。

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来源期刊

Topics in Catalysis 化学-物理化学

CiteScore

5.70

自引率

5.60%

发文量

197

审稿时长

2 months

期刊介绍： Topics in Catalysis publishes topical collections in all fields of catalysis which are composed only of invited articles from leading authors. The journal documents today’s emerging and critical trends in all branches of catalysis. Each themed issue is organized by renowned Guest Editors in collaboration with the Editors-in-Chief. Proposals for new topics are welcome and should be submitted directly to the Editors-in-Chief. The publication of individual uninvited original research articles can be sent to our sister journal Catalysis Letters. This journal aims for rapid publication of high-impact original research articles in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.