IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
The photocatalytic phenol degradation mechanism of Ag-modified ZnO nanorods
Feng, Chang1,2,3,4; Chen, Zhuoyuan1,3,4,5; Jing, Jiangping1,3,4; Hou, Jian5
2020-03-07
Source PublicationJOURNAL OF MATERIALS CHEMISTRY C
ISSN2050-7526
Volume8Issue:9Pages:3000-3009
Corresponding AuthorChen, Zhuoyuan(zychen@qdio.ac.cn)
AbstractPhotocatalysis, 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.
DOI10.1039/c9tc05010h
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMaterials Science ; Physics
WOS SubjectMaterials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000519972600007
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/165841
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorChen, Zhuoyuan
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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