3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application

doi:10.1016/j.cej.2023.141458

	3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application
	Yang, Yuying 1,3,5; Sun, Mengmeng 1,3; Chen, Zhuoyuan 2; Xu, Hengyue 6; Wang, Xiaohui 4; Duan, Jizhou 1,3; Hou, Baorong 1,3
	2023-02-15
发表期刊	CHEMICAL ENGINEERING JOURNAL
ISSN	1385-8947
卷号	458 页码:12
通讯作者	Sun, Mengmeng(sunmengmeng@qdio.ac.cn) ; Chen, Zhuoyuan(zychen@fosu.edu.cn)
摘要	Solar energy-driven photoinduced cathodic protection (PICP) technology utilizes solar energy to protect marine metallic structures against severe marine corrosion. To enhance the solar energy utilization and strengthen dark-state application for realizing long-term protection, herein, a 3D nanothorn cluster-like WO3/ZnO/Zn-Bi2S3 multijunction with electron-storage characteristic and adjustable energy band was constructed. It exhibited an enhanced continuous release of photogenerated electron and sustained cathodic protection in dark conditions. Exposed to only 100 s of simulated sunlight irradiation, the WO3/ZnO/Zn-Bi2S3could store 5.27x10-2 C elec-trons and provide up to 5460 s of sustained CP for the coupled metal after light stops, which was 10.8 and 3.5 times higher than those of WO3/ZnO (4.89x10-3 C) and WO3/Zn-Bi2S3 (1.51x10-2 C), respectively. The WO3 nanothorn cluster-like substrate with reversible valence transformation of W6 +/-/W5 +/- together with the large surface area and one-dimensional transmission path can store photogenerated electrons under illumination and release photogenerated electrons after light stops efficiently. Notably, the tri-phase heterojunction with intro-duction of intermediate "Carrier Springboard" ZnO between WO3 and Zn-Bi2S3 contributed to the building of well-matched energy band gradient to strengthen the directional backward transfer of photogenerated electrons and holes. The energy band of Bi2S3 sensitizer was adjusted towards negative direction by doping with zinc element to boost PICP application performance. The reversible valence transformation of Bi3 +/-/Bi5 +/- could pro-mote the consumption of photogenerated holes. These synergistically enhanced the sustained PICP performance of the WO3/ZnO/Zn-Bi2S3 photoelectrode both in dark and light conditions. This design shed light on energy-storage photoelectrodes for long-term PICP of metallic materials.
关键词	Anti-corrosion materials Sustained photoinduced cathodic protection Electron storage Adjustable energy band Well-matched energy band gradient
DOI	10.1016/j.cej.2023.141458
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42176049] ; National Natural Science Foundation of China[41976036] ; Shandong Provincial Natural Science Foundation, China[ZR2022YQ39] ; Key Research Program of Frontier Sciences, Chinese Academy of Sciences[ZDBS-LY-DQC025]
WOS研究方向	Engineering
WOS类目	Engineering, Environmental ; Engineering, Chemical
WOS记录号	WOS:000923991100001
出版者	ELSEVIER SCIENCE SA
WOS关键词	WO3 ; FABRICATION ; HETEROJUNCTION ; PHOTOANODE ; GROWTH ; FILMS
引用统计	被引频次：8[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/337002/183410
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Sun, Mengmeng; 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.Foshan Univ, Sch Mat Sci & Hydrogen Energy, 18 Jiangwanyi Rd, Foshan 528000, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 4.Southwest Inst Technol & Engn, Chongqing 400039, Peoples R China 5.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China 6.Tsinghua Univ, Inst Biopharmaceut & Hlth Engn, Tsinghua Shenzhen Int Grad Sch, 2279 Lishui Rd, Shenzhen 518055, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Yang, Yuying,Sun, Mengmeng,Chen, Zhuoyuan,et al. 3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application[J]. CHEMICAL ENGINEERING JOURNAL,2023,458:12.
APA	Yang, Yuying.,Sun, Mengmeng.,Chen, Zhuoyuan.,Xu, Hengyue.,Wang, Xiaohui.,...&Hou, Baorong.(2023).3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application.CHEMICAL ENGINEERING JOURNAL,458,12.
MLA	Yang, Yuying,et al."3D nanothorn cluster-like Zn-Bi2S3 sensitized WO3/ZnO multijunction with electron-storage characteristic and adjustable energy band for improving sustained photoinduced cathodic protection application".CHEMICAL ENGINEERING JOURNAL 458(2023):12.