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

IF 1.6 4区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR Transition Metal Chemistry 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

Transition Metal Chemistry 化学-无机化学与核化学

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

1.3 months

期刊介绍： Transition Metal Chemistry is an international journal designed to deal with all aspects of the subject embodied in the title: the preparation of transition metal-based molecular compounds of all kinds (including complexes of the Group 12 elements), their structural, physical, kinetic, catalytic and biological properties, their use in chemical synthesis as well as their application in the widest context, their role in naturally occurring systems etc. Manuscripts submitted to the journal should be of broad appeal to the readership and for this reason, papers which are confined to more specialised studies such as the measurement of solution phase equilibria or thermal decomposition studies, or papers which include extensive material on f-block elements, or papers dealing with non-molecular materials, will not normally be considered for publication. Work describing new ligands or coordination geometries must provide sufficient evidence for the confident assignment of structural formulae; this will usually take the form of one or more X-ray crystal structures.