光催化
结晶度
材料科学
苝
无定形固体
量子产额
光化学
制氢
化学工程
氢
催化作用
化学
有机化学
复合材料
分子
光学
物理
荧光
工程类
作者
Mingyou Hu,Chenxi Wu,Shufan Feng,Jianli Hua
出处
期刊:Molecules
[MDPI AG]
日期:2023-09-28
卷期号:28 (19): 6850-6850
被引量:2
标识
DOI:10.3390/molecules28196850
摘要
Hydrogen-bonded organic frameworks (HOFs) are a kind of crystalline porous material that have shown great potential for photocatalysis on account of their mild synthesis conditions and high crystallinity. Perylene-based photocatalysts have great potential for photocatalytic H2O2 production due to their excellent photochemical stability and broad spectral absorption. In this work, we designed and synthesized a high crystalline perylene-based HOF (PTBA) and an amorphous analog sample PTPA for photocatalytic H2O2 evolution. Under visible light irradiation, PTBA shows a higher photocatalytic H2O2 production rate of 2699 μmol g-1 h-1 than PTPA (2176 μmol g-1 h-1) and an apparent quantum yield (AQY) of 2.96% at 500 nm. The enhanced photocatalytic performance of PTBA is attributed to the promotion of the separation and transfer of photocarriers due to its high crystallinity. This work provides a precedent for the application of HOFs in the field of photocatalytic H2O2 generation.
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