Defective UiO-66 framework for the adsorptive removal of fluoride ions in water

IF 4.4 3区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Communications Pub Date : 2025-05-26 DOI:10.1016/j.inoche.2025.114755

Honoka Kikuchi, Hiroki Konno

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Abstract

Fluoride ions exert a negative impact on humans, animals, and plants and enter the environment through industrial wastewater. Therefore, easy-to-operate and low-cost adsorption methods for efficient wastewater treatment are essential. Recently, the application of metal–organic frameworks as adsorbents of contaminants in water has attracted increasing research attention, among which UiO-66 (Universitetet i Oslo 66) stands out because of its excellent water and chemical stability. In this study, the adsorption properties of a defective UiO-66 framework with controlled defect amounts for fluoride ions in water were evaluated. UiO-66 showed higher adsorption performance for fluoride ions with increasing defect amount. The effect of the solution pH was investigated, finding that the adsorption capacity was the highest at pH 6.47. Anionic coexisting substances and surfactants were found to have little effect on the adsorption performance. The results demonstrate that defective UiO-66 is a promising a selective adsorbent for fluoride ions in actual wastewater.

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用于吸附去除水中氟离子的UiO-66框架有缺陷

氟离子对人类、动物和植物产生负面影响，并通过工业废水进入环境。因此，易于操作和低成本的吸附方法对于高效处理废水至关重要。近年来，金属有机骨架作为水中污染物吸附剂的应用越来越受到研究的关注，其中UiO-66 （Universitetet i Oslo 66）因其优异的水稳定性和化学稳定性而脱颖而出。在本研究中，研究了缺陷量可控的UiO-66框架对水中氟离子的吸附性能。UiO-66对氟离子的吸附性能随缺陷量的增加而提高。考察了溶液pH的影响，发现溶液pH为6.47时吸附量最大。阴离子共存物质和表面活性剂对吸附性能影响不大。结果表明，UiO-66是一种很有前途的氟离子选择性吸附剂。

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

Inorganic Chemistry Communications 化学-无机化学与核化学

CiteScore

5.50

自引率

7.90%

发文量

1013

审稿时长

53 days

期刊介绍： Launched in January 1998, Inorganic Chemistry Communications is an international journal dedicated to the rapid publication of short communications in the major areas of inorganic, organometallic and supramolecular chemistry. Topics include synthetic and reaction chemistry, kinetics and mechanisms of reactions, bioinorganic chemistry, photochemistry and the use of metal and organometallic compounds in stoichiometric and catalytic synthesis or organic compounds.