Enhanced photocatalytic CO2 reduction over Co-doped NH2-MIL-125(Ti) under visible light

被引：66
|
作者：
Fu, Yanghe [1 ,2 ]
Yang, Huan [1 ]
Du, Rongfei [1 ]
Tu, Gaomei [1 ]
Xu, Chunhui [1 ]
Zhang, Fumin [1 ]
Fan, Maohong [2 ]
Zhu, Weidong [1 ]
机构：
[1] Zhejiang Normal Univ, Inst Phys Chem, Key Lab, Minist Educ Adv Catalysis Mat, Jinhua 321004, Peoples R China
[2] Univ Wyoming, Dept Chem & Petr Engn, Laramie, WY 82071 USA
来源：
RSC ADVANCES | 2017年 / 7卷 / 68期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORKS; CARBON-DIOXIDE; COBALT NANOPARTICLES; WATER OXIDATION; CONVERSION; EXCITATION; HYDROGEN; ARRAY; MOFS;
D O I：
10.1039/c7ra06324e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Co-doped NH2-MIL-125(Ti) catalysts [Co/NH2-MIL-125(Ti)] are developed for the photocatalytic reduction of CO2 upon visible-light irradiation. Compared with NH2-MIL-125(Ti), Co/NH2-MIL-125(Ti) exhibits a significantly enhanced activity in CO2 reduction, due to the fact that the doping of Co nanoparticles onto NH2-MIL-125(Ti) can promote the visible-light harvesting and electron transfer. In addition, when benzylic alcohols as electron donors, instead of triethanolamine (TEOA) which is often used as a sacrificial agent, are added into the reaction system, Co/NH2-MIL-125(Ti) can simultaneously catalyze CO2 reduction to formic acid (HCOOH) and the selective oxidation of the benzylic alcohols to the corresponding aldehydes, making the proposed process more economical and environment-friendly.
引用
收藏
页码：42819 / 42825
页数：7
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