| 磷化镍修饰磷掺杂氧化镓可见光催化水分解产氢 |
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| 引用本文： | 杨博,吕功煊,马建泰.磷化镍修饰磷掺杂氧化镓可见光催化水分解产氢[J].无机化学学报,2024,40(4):736-750. |
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| 作者姓名： | 杨博 吕功煊 马建泰 |
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| 作者单位： | 中国科学院兰州化学物理研究所，羰基合成与选择氧化国家重点实验室，兰州 730000;中国科学院大学，北京 100049;兰州大学化学化工学院，兰州 730000 |
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| 基金项目： | 科技部重点研发项目(No.2022YFB3803600)和国家自然科学基金(No.22272189、22102200)资助。 |
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| 摘 要： | 以Ga2O3半导体为前驱体，用浸渍加低温磷化法制备了P掺杂Ga2O3表面修饰Ni2P光催化剂(x-Ni2P/Ga2O3-Py，x代表Ni2+和Ga2O3的物质的量之比，y代表NaH2PO·H2O与Ga2O3的物质的量之比)。5%-Ni2P/Ga2O3-P6催化剂展现出在纯水中光催化析氢的高活性，在430 nm光照下的光量子效率为0.22%。机理研究结果表明Ni2P修饰和P掺杂扩展了催化剂的光响应范围，同时提升了载流子分离迁移效率，其长周期光催化反应稳定性明显优于未磷化催化剂。
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| 关 键 词： | 氧化镓 磷掺杂 磷化镍 光催化产氢 |
| 收稿时间： | 2023/9/16 0:00:00 |
| 修稿时间： | 2024/1/16 0:00:00 |
Nickel phosphide modified phosphorus doped gallium oxide for visible light photocatalytic water splitting to hydrogen |
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| Institution: | State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;University of Chinese Academy of Sciences, Beijing 100049, China;College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | Nickel phosphide (Ni2P) modified phosphorus doped gallium oxide (Ga2O3) (x-Ni2P/Ga2O3-Py, x represents the molar ratio of Ni2+ and Ga2O3, y represents the molar ratio of NaH2PO·H2O and Ga2O3) photocatalyst was prepared by impregnation and low temperature phosphating method using Ga2O3 semiconductor as a precursor. 5%- Ni2P/Ga2O3-P6 exhibits excellent photocatalytic hydrogen evolution activity in pure water and has a photo quantum efficiency of 0.22% under 430 nm monochromatic light irradiation. The mechanism study shows that phosphorus doping and Ni2P cocatalyst modification extend the photo-response range and promote carrier separation and migration efficiency. The long-term photocatalytic stability is better than that of a non-phosphating catalyst. |
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| Keywords: | gallium oxide phosphorus doping nickel phosphide photocatalytic hydrogen evolution |
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