Direct Z-scheme MgIn2S4/TiO2 heterojunction for enhanced photocathodic protection of metals under visible light
文献类型：期刊论文
| 作者 | Li, Hong2,5 ; Cui, Xingqiang2,5; Song, Weizhe2,5; Yang, Zhanyuan2,5; Li, Yanhui2,5; Zhang, Pengfei5; Zheng, Zongmin2,3; Wang, Yuqi2,5; Li, Junru5; Ma, Fubin1,4
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| 刊名 | NANOTECHNOLOGY
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| 出版日期 | 2022-04-16 |
| 卷号 | 33期号:16页码:14 |
| ISSN号 | 0957-4484 |
| 关键词 | TiO2 MgIn2S4 photocathodic protection Z-scheme ESR |
| DOI | 10.1088/1361-6528/ac493c |
| 通讯作者 | Li, Hong(lhqdio1987@163.com) |
| 英文摘要 | To improve the photocathodic protection performance of traditional TiO2 photoanodes for metals, constructing a Z-scheme heterojunction is one of the most promising and creative strategies. Herein, we fabricated a novel Z-scheme MgIn2S4 nanosheets/TiO2 nanotube nanocomposite through anodization and hydrothermal method. The optimized Z-scheme MgIn2S4/TiO2 nanocomposites exhibited stronger visible light absorption, higher separation efficiency of photoelectrons and photocathodic protection performances in comparison to pure TiO2. The theoretical analysis and experimental results show that the Z-scheme heterojunction and oxygen vacancies jointly improved the separation efficiency of photogenerated electron-hole pairs and visible light absorption capacity, thereby improving the photoelectric conversion performance of the MgIn2S4/TiO2 nanocomposites. Furthermore, the influence of the precursor solution concentration on the photocathodic protection performances of the composites was investigated. As a result, when the concentration of magnesium source in the precursor solution was 0.06 mmol, the prepared MgIn2S4/TiO2-0.06 displayed the best photocathodic protection performance. In addition, the hydroxyl radicals (center dot OH) generated in the electron spin resonance (ESR) experiment verified the Z-scheme heterojunction mechanism of the MgIn2S4/TiO2 composite, and also demonstrated the excellent redox performance of the composite. This work provides valuable reference for the construction of high-performance Z-scheme heterojunctions for photocathode protection of metals. |
| 资助项目 | National Natural Science Foundation of China[51801109] ; National Natural Science Foundation of China[21805146] ; Science and Technology Support Plan for Youth Innovation of Colleges in Shandong Province[DC2000000891] ; Key Research and Development Public Welfare Program of Shandong Province[2019GGX102086] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000750004400001 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/177938]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Li, Hong |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Qingdao Univ, State Key Lab Biofibers & Ecotext, 308 Ningxia Rd, Qingdao 266071, Peoples R China 3.Qingdao Univ, Natl Engn Res Ctr Intelligent Elect Vehicle Power, 308 Ningxia Rd, Qingdao 266071, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 5.Qingdao Univ, Coll Mech & Elect Engn, 308 Ningxia Rd, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Hong,Cui, Xingqiang,Song, Weizhe,et al. Direct Z-scheme MgIn2S4/TiO2 heterojunction for enhanced photocathodic protection of metals under visible light[J]. NANOTECHNOLOGY,2022,33(16):14. |
| APA | Li, Hong.,Cui, Xingqiang.,Song, Weizhe.,Yang, Zhanyuan.,Li, Yanhui.,...&Ma, Fubin.(2022).Direct Z-scheme MgIn2S4/TiO2 heterojunction for enhanced photocathodic protection of metals under visible light.NANOTECHNOLOGY,33(16),14. |
| MLA | Li, Hong,et al."Direct Z-scheme MgIn2S4/TiO2 heterojunction for enhanced photocathodic protection of metals under visible light".NANOTECHNOLOGY 33.16(2022):14. |
入库方式： OAI收割
来源：海洋研究所
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