Enhanced anticorrosion mechanism of photocathodic protection coatings with zinc indium sulfide/titanium oxide Z-scheme heterojunctions

doi:10.1016/j.conbuildmat.2024.139109

	Enhanced anticorrosion mechanism of photocathodic protection coatings with zinc indium sulfide/titanium oxide Z-scheme heterojunctions
	Li, Zheng 1,2; Zhang, Xiaoying 1,2; Jin, Zuquan 1,2; Jiang, Haosen 1,2; Wang, Xiaoqing 1,2; Chen, Yuehua 1,2; Zhang, Yue 1,2; Hou, Baorong 3
	2024-11-29
发表期刊	CONSTRUCTION AND BUILDING MATERIALS
ISSN	0950-0618
卷号	453 页码:16
通讯作者	Zhang, Xiaoying([email protected]) ; Jin, Zuquan([email protected]) ; Zhang, Yue([email protected])
摘要	In order to develop novel anti-corrosion technologies of metals, the photoelectrochemical cathodic protection (PECCP) coating with zinc indium sulfide/titanium oxide (Zn2In2S5/TiO2) was successfully fabricated and its enhanced anticorrosion mechanism was explored in marine environment under light and dark condition, respectively. It found that the improvement of anticorrosion performance is due to the introduction of Zn2In2S5/ TiO2 with Z-scheme heterojunctions, which has been verified systematically through theoretical calculations and electrochemical experiments. Under illumination, the photoelectrons generated by Zn2In2S5/TiO2 Z-scheme heterojunctions were accumulated on the conduction band (CB) of Zn2In2S5 at an internal electric field (IEF) pointing from Zn2In2S5 to TiO2, which endowed Zn2In2S5/TiO2 with strong oxidation-reduction ability to provide PECCP for Q235CS and 304SS in 3.5 wt% NaCl. In the dark state, Zn2In2S5/TiO2 Z-scheme heterojunctions served as nanofills to enhance the maze effect, ensuring the remarkable anticorrosion performance of PECCP coating. Furthermore, the protective effect of Zn2In2S5/TiO2 coating was quantified as 74.23 % and 98.91 % for 304SS and Q235CS in 3.5 wt% NaCl for 30 days, respectively.
关键词	Z-scheme Photocathodic protection Density functional theory PECCP coating
DOI	10.1016/j.conbuildmat.2024.139109
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52225905]
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:001356344800001
出版者	ELSEVIER SCI LTD
WOS关键词	PHOTOELECTROCHEMICAL CATHODIC PROTECTION ; STAINLESS-STEEL ; CO2 REDUCTION ; TIO2 ; FILMS ; PERFORMANCE ; CORROSION ; PHOTOCATALYST ; FABRICATION ; CAPABILITY
引用统计	被引频次：1[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/337002/199239
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhang, Xiaoying; Jin, Zuquan; Zhang, Yue
作者单位	1.Qingdao Univ Technol, Minist Educ, Engn Res Ctr Concrete Technol Marine Environm, Qingdao 266033, Peoples R China 2.Qingdao Univ Technol, Coll Civil Engn, Qingdao 266520, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Adv Marine Mat, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Li, Zheng,Zhang, Xiaoying,Jin, Zuquan,et al. Enhanced anticorrosion mechanism of photocathodic protection coatings with zinc indium sulfide/titanium oxide Z-scheme heterojunctions[J]. CONSTRUCTION AND BUILDING MATERIALS,2024,453:16.
APA	Li, Zheng.,Zhang, Xiaoying.,Jin, Zuquan.,Jiang, Haosen.,Wang, Xiaoqing.,...&Hou, Baorong.(2024).Enhanced anticorrosion mechanism of photocathodic protection coatings with zinc indium sulfide/titanium oxide Z-scheme heterojunctions.CONSTRUCTION AND BUILDING MATERIALS,453,16.
MLA	Li, Zheng,et al."Enhanced anticorrosion mechanism of photocathodic protection coatings with zinc indium sulfide/titanium oxide Z-scheme heterojunctions".CONSTRUCTION AND BUILDING MATERIALS 453(2024):16.