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| Fabrication and Photoelectrochemical Cathodic Protection Effect of Bi2S3/CdSe Co-modified TiO2 Nanotube Film |
| Author Name | Affiliation | E-mail | | WANG Xia | State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China | | | GUAN Zi-Chao | State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
CNOOC Changzhou Paint and Coatings Industry Research Institute Co., Ltd., Changzhou, Jiangsu 213016, China | | | SHI Hai-Yan | State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China | | | JIN Piao | State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China | | | LIU Guo-Kun | State Key Laboratory of Marine Environmental Science, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361102, China | guokunliu@xmu.edu.cn | | DU Rong-Gui | State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China | rgdu@xmu.edu.cn |
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| Abstract: In this work, Bi2S3 and CdSe were used to modify a TiO2 nanotube film for obtaining a Bi2S3/CdSe/TiO2 composite film with enhanced photoelectrochemical performance. The TiO2 nanotube array film was fabricated on a Ti foil by anodic oxidation. CdSe was formed on the TiO2 nanotube film by constant current electrodeposition, and then Bi2S3 was prepared on the binary CdSe/TiO2 composite film by successive ionic layer adsorption and reaction to obtain a Bi2S3/CdSe co-modified TiO2 nanotube composite film with a cascade band structure. The results showed that the Bi2S3/CdSe/TiO2 nanotube composite film showed enhanced photoabsorption in the visible light range, and its photoelectrochemical performance was greatly improved. Under white light illumination, the photocurrent density of this ternary composite film reached 670 μA·cm-2, which was about 17.6 times that of the TiO2 nanotube film. The Bi2S3/CdSe/TiO2 composite film could provide excellent photoelectrochemical cathodic protection for 403 stainless steel (403SS) in a 0.5 mol·L-1 NaCl solution, and reduced the potential of 403SS by 690 mV relative to its corrosion potential. |
| Keywords: TiO2 nanotubes Bi2S3 CdSe photoelectrochemical cathodic protection stainless steel |
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| WANG Xia,GUAN Zi-Chao,SHI Hai-Yan,JIN Piao,LIU Guo-Kun,DU Rong-Gui.Fabrication and Photoelectrochemical Cathodic Protection Effect of Bi2S3/CdSe Co-modified TiO2 Nanotube Film[J].Chinese Journal of Inorganic Chemistry,2022,38(5):861-872. |
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