| BiVO4/ZnFe2O4同型异质结光阳极的构筑及其光电催化分解水性能 |
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| 引用本文： | 樊萌萌,文晓江,陶紫阳,赵强,李晋平,刘光. BiVO4/ZnFe2O4同型异质结光阳极的构筑及其光电催化分解水性能[J]. 无机化学学报, 2013, 29(18) |
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| 作者姓名： | 樊萌萌 文晓江 陶紫阳 赵强 李晋平 刘光 |
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| 作者单位： | 太原理工大学, 气体能源高效清洁利用山西省重点实验室, 太原 030024 |
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| 基金项目： | 国家自然科学基金(No.21878204)和山西省重点研发计划项目(国际合作项目No.201903D421073)资助。 |
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| 摘 要： | 光生电子-空穴对的复合被认为是限制BiVO4材料光电催化转换效率的重要原因之一。基于此，通过简单的水热-煅烧方法构筑了 BiVO4/ZnFe2O4同型异质结光阳极，BiVO4/ZnFe2O4复合光阳极在 1.23 V(vs RHE)下的光电流密度为 3.33 mA·cm-2，较纯BiVO4提升了2倍 (1.20 mA·cm-2)。相关的结构及性能测试表明，BiVO4和ZnFe2O4形成了带隙错开的n-n异质结，使得光生载流子得到有效分离，更有效地参与水氧化过程，进而提高了BiVO4的光电催化水分解性能。
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| 关 键 词： | BiVO4 ZnFe2O4 光阳极 光电水氧化 异质结 |
| 收稿时间： | 2022-05-27 |
| 修稿时间： | 2022-10-21 |
Construction and photoelectrochemical water oxidation performance of BiVO4/ZnFe2O4 homotypic heterojunction photoanode |
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| FAN Meng-Meng,WEN Xiao-Jiang,TAO Zi-Yang,ZHAO Qiang,LI Jin-Ping,LIU Guang. Construction and photoelectrochemical water oxidation performance of BiVO4/ZnFe2O4 homotypic heterojunction photoanode[J]. Chinese Journal of Inorganic Chemistry, 2013, 29(18) |
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| Authors: | FAN Meng-Meng WEN Xiao-Jiang TAO Zi-Yang ZHAO Qiang LI Jin-Ping LIU Guang |
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| Affiliation: | Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | The combination of photogenerated electron hole pairs is considered one of the important reasons for limiting the photoelectrocatalytic conversion efficiency of BiVO4 photoanode. In this work, BiVO4/ZnFe2O4 homotypic heterojunction was constructed by a simple hydrothermal method and calcination process. The obtained BiVO4/ZnFe2O4 photoanode achieved an excellent photocurrent density of 3.33 mA·cm-2 at 1.23 V (vs RHE), which was 2 times higher than that of pure BiVO4 (1.20 mA·cm-2). Related structure and performance tests showed that BiVO4 and ZnFe2O4 can form a bandgap staggered n-n heterojunction, which enables the photogenerated carriers to be effectively separated and participate in the water oxidation process, thus improving the photoelectrochemical water oxidation activities of BiVO4 photoanode. |
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| Keywords: | BiVO4 ZnFe2O4 photoanode photoelectrochemical water oxidation heterojunction |
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