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3D ZnIn2S4 nanosheets/TiO2 nanotubes as photoanodes for photocathodic protection of Q235 CS with high efficiency under visible light
Li, Hong1; Li, Yanhui1; Wang, Xiutong2; Hou, Baorong2
2019-01-15
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume771Pages:892-899
Corresponding AuthorLi, Hong(lhqdio1987@163.com) ; Li, Yanhui(liyanhui@tsinghua.org.cn)
AbstractA 3-dimensional ZnIn2S4/TiO2 nanotubes composite was prepared by a combined hydrothermal reaction and electrochemical anodization method. Photogenerated open circuit potential, photogenerated current density, electrochemical impedance spectra, Tafel curves, and i-V curves were measured to investigate the photoelectrochemical activities and photocathodic protection properties for Q235 carbon steel. The results showed that the photocurrent density of the ZnIn2S4/TiO2 composite was greatly increased compared with pure TiO2. Under visible light irradiation, the photocurrent density of the ZnIn2S4-0.25/TiO2 composite can reach 400 mu A cm(-2), which was two times that of TiO2. The photogenerated potential drop of the composite photoanode was about 0.36 V, which was greater than that of TiO2 (about 0.16 V). The introduction of the ZnIn2S4 improved the visible light absorption ability and photogenerated charge separation efficiency of TiO2. The loading of ZnIn2S4 onto the TiO2 surface led to a negative shift of the Fermi level of TiO2. The generation of adsorbed oxygen can facilitate the separation of photogenerated charges. (C) 2018 Elsevier B.V. All rights reserved.
KeywordTiO2 nanotube ZnIn2S4 nanosheet XPS EIS Cathodic protection
DOI10.1016/j.jallcom.2018.09.027
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51801109] ; Natural Science Foundation of Shandong Province of China[ZR2018BEM004] ; Taishan Scholars Construction Engineering of Shandong province[201511029] ; Shandong Province Postdoctoral Innovation Project[201601001]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000449621500110
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/156355
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorLi, Hong; Li, Yanhui
Affiliation1.Qingdao Univ, Coll Mech & Elect Engn, 308 Ningxia Rd, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Marine Corros & Protect Ctr, 7 Nanhai Rd, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Li, Hong,Li, Yanhui,Wang, Xiutong,et al. 3D ZnIn2S4 nanosheets/TiO2 nanotubes as photoanodes for photocathodic protection of Q235 CS with high efficiency under visible light[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,771:892-899.
APA Li, Hong,Li, Yanhui,Wang, Xiutong,&Hou, Baorong.(2019).3D ZnIn2S4 nanosheets/TiO2 nanotubes as photoanodes for photocathodic protection of Q235 CS with high efficiency under visible light.JOURNAL OF ALLOYS AND COMPOUNDS,771,892-899.
MLA Li, Hong,et al."3D ZnIn2S4 nanosheets/TiO2 nanotubes as photoanodes for photocathodic protection of Q235 CS with high efficiency under visible light".JOURNAL OF ALLOYS AND COMPOUNDS 771(2019):892-899.
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