| 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,2013,29(18). |
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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)。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, ChinaUniversity of Chinese Academy of Sciences, Beijing 100049, ChinaCollege 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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