2D-2D Heterostructured UNiMOF/g-C3N4 for Enhanced Photocatalytic H2 Production under Visible-Light Irradiation

被引：92
|
作者：
Cao, Aihui [1 ]
Zhang, Lijuan [2 ]
Wang, Yun [3 ]
Zhao, Huijun [3 ]
Deng, Hong [2 ]
Liu, Xueming [2 ]
Lin, Zhang [2 ]
Su, Xintai [2 ]
Yue, Fan [1 ]
机构：
[1] Xinjiang Univ, Coll Chem & Chem Engn, Minist Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China
[2] South China Univ Technol, Sch Environm & Energy, Minist Educ, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Guangzhou 510006, Guangdong, Peoples R China
[3] Griffith Univ Gold Coast Campus, Ctr Clean Environm & Energy, Southport, Qld 4222, Australia
来源：
ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2019年 / 7卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Ultrathin NiMOF; Carbon nitride; Heterojunction; Photocatalytic hydrogen evolution; GRAPHITIC CARBON NITRIDE; METAL-ORGANIC FRAMEWORKS; HYDROGEN EVOLUTION; Z-SCHEME; LOW-COST; EFFICIENT; COCATALYST; COMPOSITE; HETEROJUNCTIONS; PERFORMANCE;
D O I：
10.1021/acssuschemeng.8b05396
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
On the basis of ultrathin two-dimensional (2D) nickel metal organic framework (UNiMOF) nanoflakes and 2D g-C3N4 nanoflakes, fresh visible-light-driven 2D/2D heterostructure catalysts were designed, which were assembled with a simplistic electrostatic self-assembly process. The photocatalytic performance of UNiMOF/g-C3N4 for H-2 production was evaluated in visible light. The hydrogen evolution of 25.0% UNiMOF/g-C3N4 (UNG-25.0) heterojunction was 20.03 mu mol h(-1) which was greater than that of pure g-C3N4. In addition, the UNG composites also presented more excellent photocatalytic activity than that of bulk NiMOF/g-C3N4 (BNG) hybrid. This enhanced performance may depend on cooperative potentiation between UNiMOF and g-C3N4 efficiently lowering recombination of carriers. This work showed that constructing 2D-2D heterojunctions provides a feasible approach to obtain highly capable catalysts for photocatalytic decomposition of water.
引用
收藏
页码：2492 / 2499
页数：15
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