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Photocathodic Protection of 304 Stainless Steel by Bi2S3/TiO2 Nanotube Films Under Visible Light
Li, Hong1; Wang, Xiutong1; Wei, Qinyi1,2; Hou, Baorong1
2017-01-31
发表期刊NANOSCALE RESEARCH LETTERS
卷号12
文章类型Article
摘要We report the preparation of TiO2 nanotubes coupled with a narrow bandgap semiconductor, i. e., Bi2S3, to improve the photocathodic protection property of TiO2 for metals under visible light. Bi2S3/TiO2 nanotube films were successfully synthesized using the successive ionic layer adsorption and reaction (SILAR) method. The morphology and structure of the composite films were studied by scanning electron microscopy and X-ray diffraction, respectively. UV-visible diffuse reflectance spectra were recorded to analyze the optical absorption property of the composite films. In addition, the influence of Bi2S3 deposition cycles on the photoelectrochemical and photocathodic protection properties of the composite films was also studied. Results revealed that the heterostructure comprised crystalline anatase TiO2 and orthorhombic Bi2S3 and exhibited a high visible light response. The photocurrent density of Bi2S3/ TiO2 was significantly higher than that of pure TiO2 under visible light. The sensitization of Bi2S3 enhanced the separation efficiency of the photogenerated charges and photocathodic protection properties of TiO2. The Bi2S3/TiO2 nanotubes prepared by SILAR deposition with 20 cycles exhibited the optimal photogenerated cathodic protection performance on the 304 stainless steel under visible light.
关键词Tio2 Nanotube Bi2s3 Stainless Steel Photocathodic Protection
DOI10.1186/s11671-017-1863-9
收录类别SCI
语种英语
WOS记录号WOS:000397578000001
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136794
专题海洋腐蚀与防护研究发展中心
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Li, Hong,Wang, Xiutong,Wei, Qinyi,et al. Photocathodic Protection of 304 Stainless Steel by Bi2S3/TiO2 Nanotube Films Under Visible Light[J]. NANOSCALE RESEARCH LETTERS,2017,12.
APA Li, Hong,Wang, Xiutong,Wei, Qinyi,&Hou, Baorong.(2017).Photocathodic Protection of 304 Stainless Steel by Bi2S3/TiO2 Nanotube Films Under Visible Light.NANOSCALE RESEARCH LETTERS,12.
MLA Li, Hong,et al."Photocathodic Protection of 304 Stainless Steel by Bi2S3/TiO2 Nanotube Films Under Visible Light".NANOSCALE RESEARCH LETTERS 12(2017).
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