用于双重光氧化和捕获水中砷的金属有机框架。

IF 7.5 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
ChemSusChem Pub Date : 2024-06-24 DOI:10.1002/cssc.202400592
Paula G-Saiz, Bárbara Gonzalez Navarrete, Subhajit Dutta, Elvira Vidal Martín, Ander Reizabal, Itziar Oyarzabal, Prof. Stefan Wuttke, Prof. Senentxu Lanceros-Méndez, Dr. Maibelin Rosales, Dr. Andreina García, Dr. Roberto Fernández de Luis
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引用次数: 0

摘要

尽管技术进步日新月异,但重金属水污染,尤其是砷污染,仍然是一项重大的全球性挑战。三价砷稳定为中性亚砷酸盐(AsIII),阻碍了传统吸附方法对其的去除。虽然吸附阴离子砷酸盐(AsV)原则上更为可行,但目前只有少数吸附剂能够吸附这两种形式的砷。在这项工作中,我们研究了 UiO-66 和 MIL-125 这两个著名的金属有机框架 (MOF) 家族同时吸附和光氧化水中砷物种的潜力。我们的研究结果表明,在光照射下形成的 AsV 离子会促进随后对其他 AsIII 物种的吸附。因此,我们建议将光催化和吸附技术结合起来,用于水质修复。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Metal-Organic Frameworks for Dual Photo-Oxidation and Capture of Arsenic from Water

Metal-Organic Frameworks for Dual Photo-Oxidation and Capture of Arsenic from Water

Despite rapid technological progress, heavy metal water pollution, and particularly arsenic contamination, remains a significant global challenge. In addition, the stabilization of trivalent arsenic as neutral arsenite (AsIII) species hinders its removal by conventional sorbents. While adsorption of anionic arsenate (AsV) species is in principle more feasible, there are only few adsorbents capable of adsorbing both forms of arsenic. In this work, we explore the potential of two well-known families of Metal-Organic Frameworks (MOFs), UiO-66 and MIL-125, to simultaneously adsorb and photo-oxidize arsenic species from water. Our results demonstrate that the formation of AsV ions upon light irradiation promotes the subsequent adsorption of AsIII species. Thus, we propose the combined utilization of photocatalysis and adsorption with Metal-Organic Framework photocatalysts for water remediation purposes.

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来源期刊
ChemSusChem
ChemSusChem 化学-化学综合
CiteScore
15.80
自引率
4.80%
发文量
555
审稿时长
1.8 months
期刊介绍: ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology
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