化学
硝基苯
苯胺
光催化
化学还原
还原(数学)
无机化学
催化作用
光化学
电化学
物理化学
有机化学
几何学
数学
电极
作者
Tang Wei,Yanan Liu,Yuzhen Jin,Yuting Wang,Weixiang Shen,Pengtao Ma,Jingyang Niu,Jingping Wang
标识
DOI:10.1021/acs.inorgchem.3c04450
摘要
In this paper, we have successfully synthesized a structurally novel heteropolytungstate via coordination of four {Ru(C6H6)} and trivacant {TeW9O33} clusters, formulated as Cs4Na2H2[Te2W20O72(H2O){(C6H6)Ru}4]·12H2O (1). Compound 1 inherited the strong absorption of [Ru(C6H6)Cl2]2 in the visible region and {TeW9O33} in the UV region, providing a good basis for photocatalysis. As expected, compound 1 showed good photocatalytic activity in the visible-light-driven reduction of nitrobenzene using N2H4·H2O as a reductant with a yield of 99.8%, a high turnover number (TON = 330), and a high turnover frequency (TOF = 24 h–1). The cyclic experiment of nitrobenzene reduction indicated that compound 1 was an effective and stable heterogeneous catalyst. Finally, the nitrobenzene reduction pathway was affirmed using condensation with azobenzene as a reaction intermediate based on control experiments.
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