| 分级孔结构g-C3N4光催化剂的制备及性能 | |
| Preparation and Properties of g-C3N4 Photocatalysts with Hierarchical Porous Structure | |
| 摘要: 以单分散SiO2为模板，通过简单的一步煅烧法制备具有分级孔结构的g-C3N4。与体相g-C3N4相比，分级孔结构的g-C3N4不仅可见光吸收性能和比表面积得到提高，而且更有利于光生电子-空穴的分离。此外，具有分级孔结构的g-C3N4具有明显增强的可见光驱动的光催化产氢活性，当SiO2和二氰二胺质量比为1：1时，制备所得g-C3N4（C3N4-2）产氢速率几乎是体相g-C3N4的18倍。 | |
| 关键词: 光催化 氮化碳 分级孔 制氢 | |
| 基金项目: 国家自然科学基金（No.21701149）、河南省科技攻关项目（No.182102210563）、郑州师范学院环境催化创新团队（No.702010）、郑州师范学院大学生创新性实验计划（No.DCZ2018006）和郑州师范学院青年骨干教师培养计划（No.201803）资助项目。 | |
| Abstract: g-C3N4 with hierarchical porous structure was synthesized through a simple one-step calcination method by using monodisperse silica as a template. In comparison with the bulk g-C3N4, the hierarchical porous structure of g-C3N4 not only improved the visible light absorption performance and specific surface area, but also facilitated the separation of photogenerated electron-holes. Moreover, g-C3N4 with hierarchical pore structure has significantly enhanced visible light-driven photocatalytic hydrogen production activity. When the mass ratio of SiO2 and dicyandiamine was 1:1, the obtained g-C3N4 (C3N4-2) exhibited obviously enhanced visible-light-driven photocatalytic activity for H2 evolution, and its hydrogen production rate was nearly 18 times that of bulk g-C3N4. | |
| Keywords: photocatalysis g-C3N4 hierarchical porous hydrogen production | |
| 投稿时间：2019-11-05 修订日期：2020-03-06 | |
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| 陈建军,李永宇,崔天露,史妍,王荣荣,刘新明,刘果,陈可可.分级孔结构g-C3N4光催化剂的制备及性能[J].无机化学学报,2020,36(5):835-840. | |
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