Dual-function photoelectrode of TiO2 nanotube array/CdZnS/ZnS heterojunction for efficient photoelectrochemical cathodic protection and anti-biofouling

被引：13
作者：
Qian, Feng [1 ,3 ]
Tian, Jing [1 ]
Guo, Chongqing [1 ]
Liu, Li [1 ]
Chen, Shiqiang [2 ]
Li, Jiarun [1 ]
Wang, Ning [4 ]
Wang, Lei [1 ]
机构：
[1] Qingdao Univ Sci & Technol, Sch Environm & Safety Engn, Qingdao 266042, Peoples R China
[2] Shandong Univ, Inst Marine Sci & Technol, Qingdao 266237, Peoples R China
[3] Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
[4] Qingdao Univ Sci & Technol, Coll Chem Engn, Qingdao 266042, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2024年 / 189卷
基金：
中国国家自然科学基金;
关键词：
Photoelectrochemical cathodic protection; Anti-corrosion; TiO2; /CdZnS/ZnS; Anti-biofouling; P; aeruginosa; PHOTOCATHODIC PROTECTION; HYDROGEN-PRODUCTION; PHOTOCATALYSIS; PERFORMANCE; FABRICATION; OXIDATION; PROPERTY; BACTERIA; G-C3N4; STATE;
D O I：
10.1016/j.jmst.2023.10.064
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The low photoelectric conversion efficiency of photoelectrode is an important factor that limits the application in photoelectrochemical cathodic protection (PECCP) field for marine anti-corrosion of metallic structures. In this work, a photoelectrode of TiO2 /CdZnS/ZnS triple-phase heterojunction was fabricated by loading the narrow-band CdZnS associated with the broad-band ZnS via hydrothermal and continuous ion layer adsorption methods, respectively. The composite of CdZnS enhances the photoelectric conversion ability of TiO2 , while the ZnS composite can prevent the CdZnS from photo-corrosion and suppress the spillover of the photogenerated electrons. The three-phase heterostructure effectively improves the PECCP performance on 316 L stainless steel (SS) under simulated solar irradiation, especially in 3.5 wt% NaCl solution without the sacrificial agent. In addition, the prepared TiO2 /CdZnS/ZnS photoelectrode also performs anti-biofouling effect evidenced by the high removal efficiency of Pseudomonas aeruginosa ( P. aeruginosa ), which can be attributed to the oxidizability of photogenerated holes. The TiO2 /CdZnS/ZnS triple-phase heterojunction with desirable performance is a promising semiconductor material for the applications of PECCP and anti-biofouling. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
引用
收藏
页码：25 / 36
页数：12
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