Enhanced photocatalytic removal of nitric oxide over Ag-decorated ZnSn(OH)6 microcubes

Sustainable Environment Research

Truc Mai Thi Nguyen¹  Minh-Thuan Pham²  Hieu Trung Nguyen²  Jheng-Jie Jiang³  Sheng-Jie You³  Nguyen Thi Van³  Ya-Fen Wang³  Hong-Huy Tran⁴ 

[1] Center for Environmental Toxin and Emerging-Contaminant Research, Cheng Shiu University;Department of Civil Engineering, Chung Yuan Christian University;Department of Environmental Engineering, Chung Yuan Christian University;French National Center for Scientific Research, University of Grenoble Alpes;

关键词: ZnSn(OH)6;    Surface plasmon resonance;    Photocatalysis;    Silver;    Nitric oxide;   

DOI  :  10.1186/s42834-022-00125-y

来源: DOAJ

【 摘 要 】

Abstract Presently, most of the population has been facing a string of severe air pollution problems that include the intensive emission of nitric oxide (NO), which requires a practical approach to sustain our living conditions. Herein, Ag nanoparticles (Ag NPs)-decorated ZnSn(OH)6 microcubes (Ag:cZHS) photocatalysts are synthesized and used for photocatalytic NO removal under solar light activation. The properties of the newly obtained photocatalysts are comprehensively characterized by a series of typical methods. The NO removal performance over the c:ZHS photocatalysts was increased markedly upon being combined with Ag NPs because of the surface plasmon resonance effect. The contribution of electron (e−), hole (h+), hydroxyl radical (•OH), and oxygen radicals (•O2) was investigated through trapping tests and electron spin resonance analysis. Also, the by-products and apparent quantum efficiency of the photocatalysts were thoroughly studied.

【 授权许可】

Unknown