一例锚定在多钨氧酸盐上的双核钌簇用于硝基苯的光催化还原反应
An example of binuclear ruthenium clusters anchored on poly-tungsten oxides for the photocatalysis reduction of nitrobenzene
熊丽娟 1张世豪 1陈文静 1杨梦南 1牛景杨 1王敬平1
作者信息
- 1. 河南大学化学与分子科学学院,河南开封 475001
- 折叠
摘要
将有机配体2,2'-联吡啶和贵金属钌通过配位的方式与单缺位Keggin型多钨氧酸盐结合,合成了一例有机-无机杂化的含钌多钨氧簇H3[{Ru(H2O)(bpy)}2O(PW11O39)]·10H2O.标题化合物在可见光区和紫外光区都有很强的吸收能力,为光催化反应提供良好的基础.实验结果表明,该化合物在以N2H4·H2O为还原剂的可见光驱动下还原硝基苯的过程中表现出良好的光催化活性,产率高达98.1％(转化数为322.5,转化频率为53.75 h-1).3次循环实验表明,标题化合物是一种有效而稳定的异相催化剂.
Abstract
In this paper,we have successfully prepared an organic-inorganic hybridized Keggin-type Ruthe-nium-containing polytungsten oxide clusters that combines the organic ligand 2,2'-bipyridine(2,2'-bpy)with the noble metal ruthenium,formulated as H3[{Ru(H2O)(bpy)}2O(PW11O39)]·10H2O.Title com-pound inherited the strong absorption in the visible and UV regions,providing a good basis for photocatal-ysis.The experimental results showed that it exhibited good photocatalytic activity in the visible-light-driven reduction of nitrobenzene using N2H4·H2O as a reductant with a yield of 98.1％(turnover number is 322.5,turnover frequency is 53.75 h-1).Three cycles of experiments indicated that this compound was an effective and stable heterogeneous catalyst.
关键词
多金属氧酸盐/钌/硝基苯还原Key words
polyoxometalate/ruthenium/nitrobenzene reduction引用本文复制引用
出版年
2024
NETL
NSTL
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