材料科学技术(英文版)2024，Vol.189Issue(22) ：25-36.DOI:10.1016/j.jmst.2023.10.064

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

Feng Qian Jing Tian Chongqing Guo Li Liu Shiqiang Chen Jiarun Li Ning Wang Lei Wang
材料科学技术(英文版)2024，Vol.189Issue(22) ：25-36.DOI:10.1016/j.jmst.2023.10.064
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Dual-function photoelectrode of TiO2 nanotube array/CdZnS/ZnS heterojunction for efficient photoelectrochemical cathodic protection and anti-biofouling

Feng Qian 1Jing Tian 2Chongqing Guo 2Li Liu 2Shiqiang Chen 3Jiarun Li 2Ning Wang 4Lei Wang2
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作者信息

  • 1. School of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China
  • 2. School of Environment and Safety Engineering,Qingdao University of Science and Technology,Qingdao 266042,China
  • 3. Institute of Marine Science and Technology,Shandong University,Qingdao 266237,China
  • 4. College of Chemical Engineering Qingdao University of Science and Technology,Qingdao 266042,China
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Abstract

The low photoelectric conversion efficiency of photoelectrode is an important factor that limits the ap-plication 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 conver-sion 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.

Key words

Photoelectrochemical cathodic protection/Anti-corrosion/TiO2/CdZnS/ZnS/Anti-biofouling/P.aeruginosa

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基金项目

Natural Science Foundation of Shandong(ZR2021MD002)

National Natural Science Foundation of China(42106051)

National Natural Science Foundation of China(U2106206)

出版年

2024
材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCD
影响因子：0.657
ISSN：1005-0302
参考文献量60
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