The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods

doi:10.1039/c9tc05010h

	The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods
	Feng, Chang1,2,3,4 ; Chen, Zhuoyuan 1,3,4,5; Jing, Jiangping 1,3,4; Hou, Jian 5
	2020-03-07
发表期刊	JOURNAL OF MATERIALS CHEMISTRY C
ISSN	2050-7526
卷号	8 期号:9 页码:3000-3009
通讯作者	Chen, Zhuoyuan([email protected])
摘要	Photocatalysis, as a potential green technology, can effectively degrade organic pollutants. The changes of the intermediate products in the photocatalytic degradation process of pollutants are particularly important for studying the degradation mechanism. In the present paper, ZnO porous nanorod (NR), ZnO/Ag and ZnO/Ag/Ag2O photocatalysts were prepared and their photocatalytic phenol degradation performance and processes were investigated. ZnO/Ag/Ag2O displays a significantly enhanced photocatalytic phenol degradation performance with complete degradation of phenol in only 90 min of white light illumination. Except for the direct ring-opening reaction of phenol, hydroquinone is the main intermediate product for the ZnO NRs and ZnO/Ag in the photocatalytic phenol degradation process. However, for the ZnO/Ag/Ag2O photocatalyst, the Ag/Ag2O nanoparticles (NPs) act as acceptors of the photogenerated electrons and play an important role in the phenol degradation process. Different from the ZnO NRs and ZnO/Ag, ZnO/Ag/Ag2O can selectively catalyze the formation of the p-benzoquinone intermediate due to the generation of a large amount of O-center dot(2)- through the mutual conversion of Ag-0 and Ag+ on the Ag/Ag2O NPs. Therefore, ZnO/Ag/Ag2O accelerates the oxidation and degradation of phenol to carbon dioxide and water through different intermediate processes under white light illumination.
DOI	10.1039/c9tc05010h
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41576114]; Key Research and Development Program of Shandong Province[2019GHY112066]; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[614290101011703]; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000519972600007
出版者	ROYAL SOC CHEMISTRY
引用统计	被引频次：152[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/165841
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Chen, Zhuoyuan
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 5.LSMRI, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Feng, Chang,Chen, Zhuoyuan,Jing, Jiangping,et al. The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods[J]. JOURNAL OF MATERIALS CHEMISTRY C,2020,8(9):3000-3009.
APA	Feng, Chang,Chen, Zhuoyuan,Jing, Jiangping,&Hou, Jian.(2020).The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods.JOURNAL OF MATERIALS CHEMISTRY C,8(9),3000-3009.
MLA	Feng, Chang,et al."The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods".JOURNAL OF MATERIALS CHEMISTRY C 8.9(2020):3000-3009.

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