Removal of Fluoride by Modified Adsorbents: A Review of Modification Methods and Adsorption Mechanisms

IF 3.3 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Chemistry - An Asian Journal Pub Date : 2025-03-12 DOI:10.1002/asia.202401108

Yucheng Liu, Shanwei Wang, Mingyan Chen, Huan Li, Tingwei Liao

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Abstract

Fluoride is ubiquitously present in the natural environment, and its excessive levels can pose serious threats to human health and industrial production. Among various fluoride pollution control methods, adsorption is recognized for its optimal cost-effectiveness and adaptability. The mechanism of fluoride adsorption and the adsorption capacities of various modified adsorbents have been comparatively analyzed :natural minerals, biomass materials, metal oxides, and several emerging types of adsorbents, among which metal-based adsorbents show the best performance. Four modification methods to enhance the performance of adsorbents have been summarized: acid activation, thermal activation, surface functional group modification, and composite materials. Ultimately, this paper identifies the current limitations of adsorption methods for fluoride removal, including insufficient adsorption capacity and a narrow pH range of applicability. These findings are expected to offer valuable insights for the advancement of adsorbent materials research.

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改性吸附剂对氟的去除：改性方法及吸附机理综述

氟化物在自然环境中无处不在，其过量水平可能对人类健康和工业生产构成严重威胁。在各种氟污染控制方法中，吸附法因其最优的成本效益和适应性而被公认。比较分析了各种改性吸附剂的氟吸附机理和吸附能力：天然矿物、生物质材料、金属氧化物和几种新兴类型的吸附剂，其中金属基吸附剂表现出最好的性能。综述了提高吸附剂性能的四种改性方法：酸活化、热活化、表面官能团改性和复合材料改性。最后，本文指出了目前吸附法除氟的局限性，包括吸附能力不足和pH适用范围窄。这些发现有望为吸附材料的研究提供有价值的见解。

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来源期刊

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).