在共价有机框架中以质子增强的氨酸-胺协同作用,用于高效的光催化合成H2O2
Hanyu Zhou1, Zhigao Zhu1, Yuanhuai Wang1
1Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
ACS applied materials & interfaces
|December 23, 2025
概括
质子共价有机框架 (COF) 通过改善电荷分离,显著提高过氧化 (H2O2) 的产生. 这一战略为设计高效的COF光催化剂提供了新的途径.
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
- 绿色化学 绿色化学
背景情况:
- 由于可调节的结构和多孔性,共价有机框架 (COF) 对H2O2产生有希望.
- 不高效的电荷分离目前限制了COF光催化剂的性能.
研究的目的:
- 开发一种新型的质子化,化合并的因胺结合COF (TAPB-BTPA-H),用于增强H2O2的生产.
- 研究改善光催化活性背后的机制.
主要方法:
- 合成原始的COF,然后进行酸质子化,生成TAPB-BTPA-H.
- 对H2O2生产速度的光催化评估.
- 实验性表征和密度函数理论 (DFT) 计算.
主要成果:
- TAPB-BTPA-H实现了2776μmolg-1h-1的H2O2生产率,比其非质子化对应物增加了4.1倍.
- 质子化增强了电荷分离和表面水友性.
- DFT的计算证实,质子化酸作为电子沉积体,降低反应的激活能量.
结论:
- 质子化异质原子在COF中作为有效的分子内部电子沉降器.
- 这种设计原理显著提高了COF光催化剂的性能,用于产生H2O2.
- 这些发现为开发先进的COF光催化剂提供了总体策略.
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