Long-term photoinduced sustained cathodic protection enabled by a h-WO3/m-WO3/TiO2/ZnIn2S4 multi-phase junction layer with enhanced charge separation and electron storage
文献类型：期刊论文
| 作者 | Song, Yuhao2,3; Sun, Mengmeng3; Yang, Yuying3; Jiang, Xuhong3; Xiao, Bo1; Duan, Jizhou3 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2025-11-15 |
| 卷号 | 524页码:16 |
| 关键词 | Anti-corrosion materials Corrosion inhibiting materials Dark-state sustained photoinduced cathodic protection Electron storage Multiphase junction Type-II and S -scheme band alignment |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2025.169024 |
| 通讯作者 | Sun, Mengmeng(sunmengmeng@qdio.ac.cn) |
| 英文摘要 | Harsh marine corrosion seriously jeopardizes the structural reliability and service life of offshore facilities. As a solar-driven in-situ anticorrosion strategy adopting abundant solar radiation, photoinduced cathodic protection (PICP) holds great promise, yet its practical application remains limited by low charge transfer efficiency and lack of protection in the dark. Herein, we report the rational construction of a WO3/TiO2/ZnIn2S4 multiphase heterojunction photoanode material via low-temperature liquid-phase deposition followed by hydrothermal synthesis. In this architecture, TiO2 nanoparticles serve as a robust interfacial layer that enhances the anchoring of ZnIn2S4 onto WO3 nanosheets while forming stepwise band alignment with both semiconductors. The h-WO3/ m-WO3 homogeneous heterophase junction provides a highly efficient electron storage foundation, facilitating charge separation. Meanwhile, the TiO2/ZnIn2S4 interface establishes S-scheme charge transfer pathway, preserving more negative quasi-Fermi level for photogenerated electrons and maintaining strong reduction capability. The WO3/TiO2/ZnIn2S4 exhibits excellent PICP performance for a range of metals including 316 L SS, Cu, E40, Q345, and Q235 in simulated marine environments, achieving up to 18 h of sustained cathodic polarization in the dark for 316 L SS. Femtosecond transient absorption spectroscopy, in-situ XPS, and KPFM reveal the photoinduced carrier dynamics in the multiphase heterojunction. Combined experimental characterization and theoretical calculations, the enhancement mechanism of PICP performance was for that the heterojunctions facilitate interfacial charge transfer through synergistic type-II and S-scheme band alignment. This work provides valuable insights for the design of high-performance, all-weather PICP coating materials for realistic marine applications, and offers a reference for the development of other sustainable dark-active photocatalytic systems. |
| WOS关键词 | COMPOSITE FILMS ; CORROSION ; PHOTOELECTRODE ; NANOCOMPOSITE ; REDUCTION ; SURFACE |
| 资助项目 | National Natural Science Foundation of China[42176049] ; Shandong Provincial Natural Science Foundation, China[ZR2022YQ39] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001589337700029 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/203566]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Sun, Mengmeng |
| 作者单位 | 1.Yantai Univ, Sch Chem & Chem Engn, Lab Theoret & Computat Chem, Yantai 264005, Peoples R China 2.Univ Chinese Acad Sci, 19 Jia Yuquan Rd, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, State Key Lab Adv Marine Mat, Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Yuhao,Sun, Mengmeng,Yang, Yuying,et al. Long-term photoinduced sustained cathodic protection enabled by a h-WO3/m-WO3/TiO2/ZnIn2S4 multi-phase junction layer with enhanced charge separation and electron storage[J]. CHEMICAL ENGINEERING JOURNAL,2025,524:16. |
| APA | Song, Yuhao,Sun, Mengmeng,Yang, Yuying,Jiang, Xuhong,Xiao, Bo,&Duan, Jizhou.(2025).Long-term photoinduced sustained cathodic protection enabled by a h-WO3/m-WO3/TiO2/ZnIn2S4 multi-phase junction layer with enhanced charge separation and electron storage.CHEMICAL ENGINEERING JOURNAL,524,16. |
| MLA | Song, Yuhao,et al."Long-term photoinduced sustained cathodic protection enabled by a h-WO3/m-WO3/TiO2/ZnIn2S4 multi-phase junction layer with enhanced charge separation and electron storage".CHEMICAL ENGINEERING JOURNAL 524(2025):16. |
入库方式： OAI收割
来源：海洋研究所
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