A new [SiMo12O40]4−-based metal organic framework: synthesis, structure, photo-/electro-catalytic and absorption properties

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-11 DOI:10.1007/s11243-024-00585-8

Jia-Qi Geng, Yang Lu, Lu Yang, Xue Jiang, Lu-Kai Huang, Xiao-Shu Qu, Yan-Yan Yang, Hua Jin, Xue-Mei Li, Xiao-Yang Yu

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Abstract

The water pollution problems caused by organic dyes, inorganic ions and other pollutants are becoming more and more serious, and the removal of pollutants from wastewater is still a challenge. A polyoxometalate-based metal organic framework [Pr₄(bpdc)₄(H₂O)₁₀]·SiMo₁₂O₄₀·3H₂O (1) (H₂bpdc = 2,2′-bipyridine-6,6′-dicarboxylic acid) was synthesized for multi-functional treatment of pollutants in water. Structural analysis revealed that Keggin-type polyanions are sandwiched between adjacent lanthanide-organic layers. Electrochemical and dye removal experiments showed that compound 1 can not only reduce NO₂⁻ and BrO₃⁻ pollutants in water by electrocatalytic oxidation, but also photocatalytically degrade and adsorb cationic organic dye pollutants in water, and even adsorb cationic organic dyes from mixed dyes solution. It has been proved that compound 1 is a multifunctional water treatment agent.

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基于[SiMo12O40]4 的新型金属有机框架：合成、结构、光催化/电催化和吸收特性

有机染料、无机离子和其他污染物造成的水污染问题日益严重，去除废水中的污染物仍是一项挑战。本研究合成了一种基于聚氧化金属盐的金属有机框架[Pr4(bpdc)4(H2O)10]-SiMo12O40-3H2O (1)（H2bpdc = 2,2′-联吡啶-6,6′-二羧酸），用于多功能处理水中的污染物。结构分析表明，Keggin 型多负离子夹在相邻的镧系有机层之间。电化学和染料去除实验表明，化合物 1 不仅能通过电催化氧化还原水中的 NO2- 和 BrO3- 污染物，还能光催化降解和吸附水中的阳离子有机染料污染物，甚至能吸附混合染料溶液中的阳离子有机染料。事实证明，化合物 1 是一种多功能水处理剂。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.