光催化
过氧化氢
金属有机骨架
Boosting(机器学习)
制氢
金属
分子工程
化学
光化学
纳米技术
材料科学
催化作用
有机化学
计算机科学
机器学习
吸附
作者
Tang Yuying,Xiao Luo,Ri‐Qin Xia,Jie Luo,Su‐Kao Peng,Z.Y. Liu,Qiang Gao,Mo Xie,Rong‐Jia Wei,Guo‐Hong Ning,Dan Li
标识
DOI:10.1002/ange.202408186
摘要
The development of novel metal‐organic frameworks (MOFs) as efficient photocatalysts for hydrogen peroxide production from water and oxygen is particularly interesting, yet remains a challenge. Herein, we have prepared four cyclic trinuclear units (CTUs) based MOFs, exhibiting good light absorption ability and suitable bandgaps for photosynthesis of H2O2. However, Cu‐CTU‐based MOFs are not able to photocatalyzed the formation of H2O2, while the alteration of metal nodes from Cu‐CTU to Ag‐CTU dramatically enhances the photocatalytic performance for H2O2production and the production rates can reach as high as 17476 μmol g−1 h−1 with an apparent quantum yield of 9.51%, at 420 nm, which is much higher than most reported MOFs. The photocatalytic mechanism is comprehensively studied by combining the isotope labeling experiments and DFT calculation. This study provides new insights into the preparation of MOF photocatalysts with high activity for H2O2 production through molecular engineering.
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