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Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light
Li, Hong1; Wang, Xiutong1; Wei, Qinyi1,2; Liu, Xueqing3; Qian, Zhouhai4; Hou, Baorong1
2017-06-02
Source PublicationNANOTECHNOLOGY
Volume28Issue:22
SubtypeArticle
AbstractAg and graphene co-sensitized TiO2 composites were successfully fabricated and used as photoanodes for photogenerated cathodic protection of 304 stainless steel (304SS) under visible light. Graphene films was firstly deposited onto the TiO2 nanotube (NT) films via cyclic voltammetric electrodeposition. Ag/graphene/TiO2 films were then fabricated via dipping and photoreduction method. The morphology, composition and optical response of the Ag/graphene/ TiO2 NT composites were characterized by scanning electron microscopy, x-ray diffraction, x-ray photoelectron spectroscopy, UV-vis diffusion reflectance spectroscopy, respectively. The photocathodic protection performance of the Ag/graphene/ TiO2 composites were systematically studied through open-circuit potential and potentiodynamic polarization measurements in 3.5 wt% NaCl solution under visible light (lambda > 400 nm). The composites exhibited enhanced photogenerated cathodic protection performance for 304SS under visible light irradiation compared to pure TiO2. Graphene and Ag have a synergistic effect on the enhancement of photocathodic protection performance of TiO2. The composites prepared with 30-cycle graphene film and 15mM AgNO3 solution showed the optimal corrosion protection performance.
KeywordTitanium Dioxide Polarization Graphene Photocathodic Protection
DOI10.1088/1361-6528/aa6e5d
Indexed BySCI
Language英语
WOS IDWOS:000401103900001
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Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/136860
Collection海洋腐蚀与防护研究发展中心
Affiliation1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Qingdao Natl Oceanog Ctr, Qingdao 266071, Peoples R China
4.Zhejiang Power Corp, State Grid Corp China, Elect Power Res Inst, Hangzhou 310006, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Li, Hong,Wang, Xiutong,Wei, Qinyi,et al. Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light[J]. NANOTECHNOLOGY,2017,28(22).
APA Li, Hong,Wang, Xiutong,Wei, Qinyi,Liu, Xueqing,Qian, Zhouhai,&Hou, Baorong.(2017).Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light.NANOTECHNOLOGY,28(22).
MLA Li, Hong,et al."Enhanced photocathodic protection performance of Ag/graphene/TiO2 composite for 304SS under visible light".NANOTECHNOLOGY 28.22(2017).
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