单原子在纳米-MOF/管状碳化物上的定使得激活和多重电子转移为光催化固定

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Bing Jia¹, Guozhe Sui², Yan Zhuang²

¹College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.

Journal of colloid and interface science

|July 16, 2025

概括

这项研究引入了一种用于绿色氨合成的新型光催化剂. 该工程材料在MOF-74/C3N4上具有单个原子,在可见光下显著提高了氨生产率.

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.
绿色化学绿色化学

背景情况:

光催化固化是氨合成的可持续途径.
传统的光催化剂由于电荷分离不良和有限的活性位点而受到影响.

研究的目的:

开发一种有效的光催化剂,用于绿色氨合成.
通过合理设计来解决传统光催化剂的局限性.

主要方法:

在纳米金属有机框架 (MOF-74) 和空心双管状C3N4 (TCN) 上制造具有Pt单个原子 (PtSA) 的异构结构.
利用Z模式异质连接和量子束效应来提高性能.
原子级工程和异构结构建设.

主要成果:

在可见光下,Pt@MOF/TCN复合物实现了 544.91 μmol g−1 h−1 的高氨产率.
MOF-74和TCN之间的协同效应促进了定向电子转移.
PtSAs充当了高效的电子陷,抑制了电荷重组.
纳米级MOF-74通过量子束增强了N2吸附.

结论:

设计的Pt@MOF/TCN异构结构显示出对氨合成的优异光催化活性.
原子级工程和异构结构设计对于高效光催化剂至关重要.
这项工作为可持续的氨生产提供了一个有希望的途径.

关键词:

氨气氨气氨气是一种异质连接异质连接异质连接金属有机框架的框架.光催化性固化的固.Pt单个原子的一个原子.

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相关概念视频

Catalysis

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.