MXenes and MXene-based Materials for the Removal of Water Pollutants: Challenges and Opportunities

IF 4.1 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Comments on Inorganic Chemistry Pub Date : 2021-07-04 DOI:10.1080/02603594.2021.1922396

M. Khatami, S. Iravani

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引用次数: 44

Abstract

ABSTRACT Two-dimensional MXenes with their attractive applicability and unique properties such as eco-friendly features, large surface area, remarkable chemical stability, high thermal/electrical conductivity, exclusive sorption-reduction capacity, and hydrophilicity can be employed as promising candidates for water treatment; they can be mostly deployed for the elimination of various hazardous pollutants with high sorption selectivity, efficient reduction capability, and suitable degradation potentials. However, several important physicochemical parameters (e.g., pH, temperature, and water quality) can influence the adsorption performance of MXenes. Additionally some important challenging issues regarding the toxicity, degradability, storage, and large scale/commercial production of MXenes are still need to be evaluated. The aggregation of MXenes is also a critical challenge, which can reduce the adsorption activity and surface area of these materials; the surface chemistry of MXenes and related mechanisms of contaminants removal by these materials should be analytically and systematically evaluated. Importantly, the environmental risks of MXene-based structures should also be broadly analyzed. This review delineates the pros and cons and critical issues pertaining to the deployment of MXenes endowed with their superior surface area, high selectivity/sensitivity, recyclability, and attractive mechanical properties for removing hazardous pollutants (e.g., antibiotics, dyes, pesticides, heavy metals, pharmaceutical compounds, and radionuclides) from water and wastewater. GRAPHICAL ABSTRACT

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MXenes和基于MXenes的水污染物去除材料:挑战和机遇

摘要:二维MXenes具有良好的适用性和独特的性能，如生态友好、表面积大、化学稳定性好、高导热/导电性、独特的吸附-还原能力和亲水性，是水处理的有希望的候选材料;它们具有高的吸附选择性、高效的还原能力和合适的降解潜力，可用于消除各种有害污染物。然而，一些重要的物理化学参数(如pH、温度和水质)会影响MXenes的吸附性能。此外，关于MXenes的毒性、可降解性、储存和大规模/商业化生产等一些重要的挑战性问题仍需要进行评估。MXenes的聚集也是一个关键的挑战，它会降低这些材料的吸附活性和表面积;应分析和系统地评价MXenes的表面化学和这些材料去除污染物的相关机制。重要的是，基于mxene的结构的环境风险也应该进行广泛的分析。本文综述了MXenes的优点和缺点以及与部署有关的关键问题，MXenes具有优越的表面积，高选择性/灵敏度，可回收性以及去除水和废水中的有害污染物(例如抗生素，染料，农药，重金属，药物化合物和放射性核素)的吸引人的机械性能。图形抽象

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

Comments on Inorganic Chemistry 化学-无机化学与核化学

CiteScore

9.00

自引率

1.90%

发文量

审稿时长

>12 weeks

期刊介绍： Comments on Inorganic Chemistry is intended as a vehicle for authoritatively written critical discussions of inorganic chemistry research. We publish focused articles of any length that critique or comment upon new concepts, or which introduce new interpretations or developments of long-standing concepts. “Comments” may contain critical discussions of previously published work, or original research that critiques existing concepts or introduces novel concepts. Through the medium of “comments,” the Editors encourage authors in any area of inorganic chemistry - synthesis, structure, spectroscopy, kinetics and mechanisms, theory - to write about their interests in a manner that is both personal and pedagogical. Comments is an excellent platform for younger inorganic chemists whose research is not yet widely known to describe their work, and add to the spectrum of Comments’ author profiles, which includes many well-established inorganic chemists.