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2D/2D结有机框架/共价有机框架光催化进化的S-Scheme异质连接

Ruiqi Gao¹, Rongchen Shen¹, Can Huang¹

¹Institute of Biomass Engineering, Key Laboratory of Energy Plants Resource and, Utilization of Ministry of Agriculture and Rural Affairs, Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, China.

Angewandte Chemie (International ed. in English)

|November 11, 2024

概括

基于双烯的结有机框架 (HOFs) 和共价有机框架 (COFs) 形成了一个S模式异质连接,显著提高了光催化进化效率和水分裂的稳定性.

科学领域:

材料科学材料科学材料科学
光催化作用的光催化
超分子化学超分子化学

背景情况:

与结合的有机框架 (HOFs) 对光催化有希望,但由于电子孔分离不良和稳定性有限而受到影响.
从水分裂中产生高效的光催化进化需要克服这些局限性.

研究的目的:

开发一种基于双烯的新型超分子HOF/COF S-scheme异质连接,用于增强光催化.
为了研究结构-属性关系,控制光催化性能.

主要方法:

快速自组装溶液分散方法,以创建2D/2DHOF/COF异质连接.
实验和理论调查以确认结构和性能.
光催化进化速度测量.

主要成果:

成功合成了一种基于双烯的HOF/COF S-scheme异构连接 (Py-HOF/Py-COF).
异质连接表现出由于尺寸匹配和内置的S模式电场而提高了电荷载体分离和稳定性.
实现了 390.68 mmol g-1 h-1 的光催化演化速率,显著超过单个组件的性能.

结论:

设计的基于双烯的S系异质连接为高效利用太阳能提供了一个有前途的战略.
这项工作为设计强大的HOF半导体用于光催化提供了洞察力.
开发的协议有助于创建强合S型内置电场,以提高光催化活性.

关键词:

收费转移机制收费转移机制共价有机框架 (COFs) 是一种共价有机框架.结合有机框架 (HOFs) 是一种与结合的有机框架.光催化进化过程中的光催化这就是S-scheme异构连接的异构连接.

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