Research progress of TiO<sub>2</sub> photocathodic protection to metals in marine environment -- Journal of Oceanology and Limnology,2020,38(4):1018-1044

	Cite this paper:
	WANG Xiutong, XU Hui, NAN Youbo, SUN Xin, DUAN Jizhou, HUANG Yanliang, HOU Baorong. Research progress of TiO₂ photocathodic protection to metals in marine environment[J]. Journal of Oceanology and Limnology, 2020, 38(4): 1018-1044

Research progress of TiO₂ photocathodic protection to metals in marine environment

WANG Xiutong^1,2,3,4, XU Hui^1,2,3, NAN Youbo^1,2,3, SUN Xin^1,2,3, DUAN Jizhou^1,2,4, HUANG Yanliang^1,2,4, HOU Baorong^1,2,4

1 Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;
2 Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao 266237, China;
3 University of Chinese Academy of Sciences, Beijing 100049, China;
4 Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China

Abstract:

Corrosion protection has become an important issue as the amount of infrastructure construction in marine environment increased. Photocathodic protection is a promising method to reduce the corrosion of metals, and titanium dioxide (TiO₂) is the most widely used photoanode. This review summarizes the progress in TiO₂ photogenerated protection in recent years. Different types of semiconductors, including sulfides, metals, metal oxides, polymers, and other materials, are used to design and modify TiO₂. The strategy to dramatically improve the efficiency of photoactivity is proposed, and the mechanism is investigated in detail. Characterization methods are also introduced, including morphology testing, light absorption, photoelectrochemistry, and protected metal observation. This review aims to provide a comprehensive overview of TiO₂ development and guide photocathodic protection.

Key words: photocathodic protection|corrosion|titanium dioxide (TiO₂)|photoelectrochemistry|metal

Received: 2020-03-03 Revised: 2020-04-02

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Articles by XU Hui

Articles by NAN Youbo

Articles by SUN Xin

Articles by DUAN Jizhou

Articles by HUANG Yanliang

Articles by HOU Baorong

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Research progress of TiO2 photocathodic protection to metals in marine environment

Research progress of TiO₂ photocathodic protection to metals in marine environment