Enhanced CO2 photoreduction by a graphene-porphyrin metal-organic framework under visible light irradiation

被引：82
作者：
Sadeghi, Nasrin [1 ,2 ]
Sharifnia, Shahram [1 ]
Trong-On Do [2 ]
机构：
[1] Razi Univ, Chem Engn Dept, Catalyst Res Ctr, Kermanshah, Iran
[2] Laval Univ, Dept Chem Engn, Quebec City, PQ G1V0A8, Canada
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2018年 / 6卷 / 37期
基金：
加拿大自然科学与工程研究理事会;
关键词：
SILANE-COUPLING REAGENT; PHOTOCATALYTIC CONVERSION; HYDROGEN-PRODUCTION; REDUCTION; OXIDE; WATER; COMPOSITE; TIO2; MOF; NANOCOMPOSITE;
D O I：
10.1039/c8ta07158f
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A photocatalyst consisting of a porphyrin-based metal-organic framework (Al/PMOF) and amine-functionalized graphene (NH2-rGO) has been designed to reduce CO2. The structure of the hybrid MOF is investigated as a function of weight percentage of NH2-rGO added to the Al-PMOF. Also, the graphene-based MOF significantly enhances CO2 photoreduction compared with the Al-PMOF and the porphyrin ligand. This type of photocatalyst exhibits excellent visible light-driven CO2 to formate (HCOO-) formation. The formate evolution rate on NH2-rGO (5 wt%)/Al-PMOF is 685.6 mol g(cat.)(-1) h(-1) with almost 100% selectivity in the presence of TEOA as the sacrificial agent and hydrogen source, which is the highest value compared to those reported in other studies.
引用
收藏
页码：18031 / 18035
页数：5
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