Assembling a bifunctional BiOCl/Bi-MOF catalyst via sharing Bi-Cl bond: Achieving ultra-efficient CO2 capture and photoreduction

被引:35
作者
Ding, Lan [1 ,2 ]
Li, Yuning [3 ]
Ding, Yongping [1 ,2 ,4 ]
Bai, Fenghua [3 ]
Jia, Ben [3 ]
Li, Huiqin [1 ,2 ]
Wang, Xiaojing [1 ,2 ,3 ]
机构
[1] Inner Mongolia Univ, Sch Ecol & Environm, Key Lab Ecol & Resource Use Mongolian Plateau, Minist Educ, Hohhot 010021, Inner Mongolia, Peoples R China
[2] Inner Mongolia Univ, Sch Ecol & Environm, Inner Mongolia Key Lab Environm Pollut Control & W, Hohhot 010021, Inner Mongolia, Peoples R China
[3] Inner Mongolia Univ, Sch Chem & Chem Engn, Inner Mongolia Key Lab Chem & Phys Rare Earth Mat, Hohhot 010021, Inner Mongolia, Peoples R China
[4] Baotou Teachers Coll, Dept Chem, Baotou 014030, Inner Mongolia, Peoples R China
基金
中国国家自然科学基金;
关键词
CO2; adsorption; CO2 photocatalytic conversion; Bonding sharing; BiOCl/Bi-MOF hybrid; PHOTOCATALYTIC REDUCTION; H-2; EVOLUTION; LIGHT; NANOSHEETS; HETEROSTRUCTURE; NANOCOMPOSITES; DEGRADATION;
D O I
10.1016/j.apsusc.2023.157100
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
Recently, capturing and photocatalytically converting CO2 to carbon fuels has been demonstrated as a sustainable and green approach to solve the issue of greenhouse gas with good efficiency and low cost. However, the most photocatalysts suffer from low solar light harvest and poor CO2 adsorption capacity. Here, the BiOCl nanoflowers have been in situ planted on Bi-MOF nanosheets to form BiOCl/Bi-MOF hybrids, in which BiOCl flowers contribute to harvest solar light and Bi-MOF nanosheets response to capture CO2. Moreover, by the shared Bi-Cl bonding linkage, the smoothly tunnels is constructed to quickly transport photo-generated carriers. Hence, the assembly presents excellent CO2 capture and light-driven CO2-conversion activity, reaching up to 456.7 mu mol center dot g-(1 center dot)h(-1). Furthermore, different from the quickly decreased activity of the pristine BiOCl during the reaction proceeding, the CO2 photoreduction performance of BiOCl/Bi-MOF hybrid does not change much under wet air with consecutive eight hours recycle. The present investigation may provide a new strategy to prepare highly effective photocatalysts by in situ constructing bifunctional heterojunctions in the application of CO2 capture and visible-light-driven conversion.
引用
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页数:12
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