石廷阅,杨晓红,程馨,刘聪,刘佳朋,郭子宽,张彬超,宗倩颖,肖凤娟.钢结构表面光电阴极保护材料及其光阳极最新研究进展[J].表面技术,2024,53(19):27-39.
SHI Tingyue,YANG Xiaohong,CHENG Xin,LIU Cong,LIU Jiapeng,GUO Zikuan,ZHANG Binchao,ZONG Qianying,XIAO Fengjuan.Recent Progress of Steel Structure Surface Photochemical Cathodic Protection Materials and Their Photoanodes[J].Surface Technology,2024,53(19):27-39 |
| 钢结构表面光电阴极保护材料及其光阳极最新研究进展 |
| Recent Progress of Steel Structure Surface Photochemical Cathodic Protection Materials and Their Photoanodes |
| 投稿时间：2023-12-29 修订日期：2024-05-24 |
| DOI：10.16490/j.cnki.issn.1001-3660.2024.19.003 |
| 中文关键词: 光电转换效率 阴极保护 光阳极 掺杂重构 异质结工程 防腐涂层 |
| 英文关键词:photoelectric conversion efficiency photocathodic protection photoanode doping reconstruction heterojunction engineering anticorrosion coating |
| 基金项目:河北省重点研发计划(22371201D);河北省自然科学基金(B2019001315) |
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| Author | Institution |
| SHI Tingyue | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| YANG Xiaohong | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| CHENG Xin | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| LIU Cong | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| LIU Jiapeng | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| GUO Zikuan | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| ZHANG Binchao | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| ZONG Qianying | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
| XIAO Fengjuan | School of Materials Science and Engineering,Hebei Key Laboratory of New Materials for Collaborative Development of Traffic Engineering and Environment, Shijiazhuang Tiedao University, Shijiazhuang 050043, China |
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| 中文摘要: |
| 钢结构的腐蚀带来了巨大的经济损失和安全隐患。光电阴极保护是利用材料转换光辐射产生光电子，光生电子通过外接电路转移到金属表面并富集，使金属发生阴极极化，从而抑制腐蚀的技术，也是一种真正节能、环保的腐蚀防护技术。光电阴极保护材料存在可见光利用率低、光电转换效率不足、光阳极稳定性不良、很少与有机涂层联用等问题，这些问题成为制约光电阴极保护材料发展的突出问题。总结了近年来国内外改善光电阴极保护材料及其光阳极性能的最新策略和方法，重点评述了通过离子掺杂重构、敏化与共敏化、异质结工程和聚合物涂层联用等方式提升TiO2、ZnO、g-C3N4、BiVO4和聚合物基纳米材料光电转化效率的发展成果，评述了研究成果的贡献和影响，对钢结构的光生阴极保护可行性进行了论证，提出了材料防腐研究与应用中存在的问题、挑战和发展趋势，可为国内外半导体材料在光生阴极保护中的实际应用提供有价值的理论和技术参考。 |
| 英文摘要: |
| The corrosion of steel structure equipment and buildings brings huge waste of resources, economic losses and safety hazards. Common electrochemical corrosion protection causes environmental pollution and waste of resources. The photoelectricity cathodic protection (PECP) is an energy saving, environmental protection anticorrosion technology which uses semiconductor light radiation to produce photoelectrons. The photogenerated electrons are driven by potential difference, transferred to the metal surface through an external circuit and enriched on the steel structure, so that the steel cathode is polarized, thus inhibiting the steel from corrosion. PECP is an economical and sustainable corrosion protection technology based on sunlight as energy and does not consume the material itself. In recent years, PECP technology has been widely studied and rapidly developed. However, the problems such as insufficient photoelectric conversion efficiency, poor stability of photoanode, and less involvement in the combination of organic coating have become prominent bottlenecks restricting the development of photocathodic protection materials. The latest strategies and methods for improving the properties of photocathodic protection materials at home and abroad in recent years were reviewed in this paper with emphasis on the role and development of improving the photoelectric conversion efficiency and stability of TiO2, ZnO, g-C3N4, BiVO4 and polymer-based nanomaterials through ion-doped structural reconstruction, sensitization and co-sensitization, heterojunction engineering as well as combination with polymer coating. The feasibility of photocathodic protection of stainless steel and carbon steel was demonstrated. The reconstruction of ion doping could distort the crystal structure and produce the active site and impurity level, and improve the photoelectric conversion efficiency. The doping reconstruction of alkali metal ions such as k and the co-doped reconstruction of Mo and Cr significantly improved the photoelectric conversion efficiency of TiO2 photoanode, and gave excellent dark state protection and PECP performance. Graphene quantum dots (GQDs) in quantum dots sensitization had strong visible light absorption and high charge storage efficiency, so they had high development value in the PECP photoanodes. The heterojunction engineering had obvious advantages in constructing stable photoanode and improving dark cathodic protection. The n-n type heterojunction, with obvious providing electron characteristics, had a special position in improving the efficiency of photocathodic protection. However, recent studies showed that p-n type heterojunction could speed up the carrier separation and transmission rate due to the formation of a more effective built-in electric field, and also significantly improved the photoelectric conversion efficiency of the TiO2 photoanode. Among them, the TiO2-WO3/rGO photoanode developed in China could provide durable dark protection for 304 stainless steel, laying a solid foundation for the practical application of PECP materials. The conductive polymer had charge/discharge function on the coating, and had good coating protection and cathodic protection function in light and dark state. The composites of PECP material and polymer coating had development value for the application of PECP material in the surface anticorrosion of steel structure. In the anti-corrosion coating formed by polyacrylic acid (PAA), TiO2-carboxyl methyl cellulose (CMC), the connection between TiO2 and PAA-CMC enhanced the electronic storage, which was conducive to the continuous protection of 304SS in light and dark states. The TIO2-PAA-CMC anti-corrosion coating had excellent PECP performance and long-term corrosion protection function in seawater. The existing problems, challenges and development trends in the research and application of stainless steel photocathodic protection were put forward in this paper, providing valuable theoretical and technical references for the practical application of semiconductor materials in photocathodic protection at home and abroad. |
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