Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| 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 Publication | JOURNAL OF MATERIALS CHEMISTRY C
 |
| ISSN | 2050-7526 |
| Volume | 8Issue:9Pages:3000-3009 |
| Corresponding Author | Chen, Zhuoyuan(zychen@qdio.ac.cn) |
| Abstract | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Multidisciplinary ; Physics, Applied |
| WOS ID | WOS:000519972600007 |
| Publisher | ROYAL SOC CHEMISTRY |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Chen, Zhuoyuan |
| Affiliation | 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 |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| The photocatalytic p（3703KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment