| 磷化镍修饰磷掺杂氧化镓可见光催化水分解产氢 |
| Nickel phosphide modified phosphorus doped gallium oxide for visible light photocatalytic water splitting to hydrogen |
|
| 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。 |
| 关键词: 氧化镓 磷掺杂 磷化镍 光催化产氢 |
| 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。 |
| 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. |
| Keywords: gallium oxide phosphorus doping nickel phosphide photocatalytic hydrogen evolution |
| 投稿时间：2023-09-16 修订日期：2024-01-16 |
| 摘要点击次数: 1344 |
| 全文下载次数: 695 |
| 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. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
