一种类似于密码体的Ti-协调化合物,在CO2存储中具有可见光光催化活性
Yanshu Liu1, Guanyun Zhang1, Dexin Wang1
1Key Lab for Colloid and Interface Science of Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.
Dalton transactions (Cambridge, England : 2003)
|January 11, 2024
概括
一种新的 (Ti) 协调化合物Ti12Cs作为CO2/环氧化物循环添加的高效可见光光催化剂. 这种可回收的催化剂在温和条件下表现出极好的光吸收和电荷分离.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 摄影化学的使用.
背景情况:
- 开发高效的可见光驱动光催化剂对于可持续的化学转化至关重要.
- 基于的协调化合物为催化应用提供可调节的电子和结构性质.
研究的目的:
- 为了合成和描述一种新的密码和类似的Ti-协调化合物,Ti12Cs.
- 为了评估Ti12Cs在可见光下对CO2/环氧化物循环添加的光催化活性.
- 调查光催化过程的基本机制.
主要方法:
- Ti-协调化合物Ti12Cs的溶热合成.
- 使用UV-Vis吸收,电化学阻抗光谱学,瞬态光电流响应和光发光谱学进行了表征.
- 在CO2/环氧化物循环添加反应中测试光催化性能.
主要成果:
- 由于连接体到金属的电荷转移,Ti12Cs表现出强大的可见光吸收,长度高达652nm.
- 该化合物表现出极好的可见光反应和电荷分离特性.
- 在温和条件下,Ti12Cs作为可回收的异质光催化剂,以高效率进行CO2/氧化物循环添加.
结论:
- Ti12Cs 是一个有前途的可见光光催化剂,用于二氧化碳利用.
- 催化活性归因于光催化和易斯酸催化之间的协同效应.
- 该材料的结构和特性使其能够有效地收集可见光和分离电荷.
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