Preparation of a Nanosheeted Uranyl-Organic Framework for Enhanced Photocatalytic Oxidation of Toluene

被引：3

作者：

Che, Guang ^{[1
]}

Zhao, Yixin ^{[1
]}

Yang, Weiting ^{[1
]}

Zhou, Qi ^{[1
]}

Li, Xinyi ^{[1
]}

Pan, Qinhe ^{[1
,2
]}

Su, Zhongmin ^{[1
]}

机构：

[1] Hainan Univ, Sch Chem & Chem Engn, Key Lab Adv Mat Trop Isl Resources, Minist Educ, Haikou 570228, Peoples R China

[2] Hainan Med Univ, NHC Key Lab Trop Dis Control, Haikou 571199, Peoples R China

来源：

INORGANIC CHEMISTRY | 2024年 / 63卷 / 23期

基金：

中国国家自然科学基金;

关键词：

Charge transfer - Crystalline materials - Efficiency - Organometallics - Toluene - Uranium compounds;

D O I：

10.1021/acs.inorgchem.4c01401

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Preparation of ultrathin metal-organic framework (MOF) nanosheets is an effective way to improve the catalytic efficiency of MOF photocatalysts owing to their superiority in reducing the recombination rate of photogenerated electrons and holes and enhancing charge transfer. Herein, a light-sensitive two-dimensional uranyl-organic framework named HNU-68 was synthesized. Due to its interlayer stacking structure, the corresponding ultrathin nanosheets with a thickness of 4.4 nm (HNU-68-N) can be obtained through ultrasonic exfoliation. HNU-68-N exhibited an enhanced ability to selectively oxidize toluene to benzaldehyde, with the value of turnover frequency being approximately three times higher than that of the bulk HNU-68. This enhancement is attributed to the smaller size and interface resistance of the layered HNU-68-N nanosheets, which facilitate more thorough substrate contact and faster charge transfer, leading to an improvement in the photocatalytic efficiency. This work provides a potential candidate for the application of ultrathin uranyl-based nanosheets.

引用

页码：10767 / 10774

页数：8

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