合成气
催化作用
光热治疗
吸附
光催化
材料科学
化学工程
电子转移
纳米技术
化学
光化学
物理化学
有机化学
工程类
作者
Hongbin He,Xuan Jian,Tianxu Zen,Bo Feng,Yanan Hu,Zhongqiang Yuan,Zizhen Zhao,Xiaoming Gao,Lei Lv,Zhenheng Cao
标识
DOI:10.1016/j.jcis.2023.09.103
摘要
The rapid recombination of interfacial charges is considered to be the main obstacle limiting the photocatalytic CO2 reduction. Thus, it is a challenge to research an accurate and stable charge transfer control strategy. MIL-53 (Al)-S/Cd0.3Zn0.7S (MAS/CZS-0.3) photocatalysts with chemically bonded interfaces were constructed by in-situ electrostatic assembly of sulfur defect Cd0.3Zn0.7S (CZS-0.3) on the surface of MIL-53 (Al) (MAW), which enhanced interfacial coupling and accelerated electron transfer efficiency. An adjustable proportion of syngas (H2/CO) was prepared by photothermal catalytic CO2 reduction at micro-interface. and the optimal yield of CO (66.10 μmol∙g−1∙h−1) and H2 (71.0 μmol∙g−1∙h−1) was realized by the MAS/CZS-0.3 photocatalyst. The improved activity was due to the photogenerated electrons migrated from CZS-0.3 to the adsorption active sites of MAS, which strengthened the adsorption and activation of CO2 on MAS. The photothermal catalytic CO2 reduction to CO follows the pathway of CO2→*COOH → CO and CO2→*HCO3–→CO. This work provided a reference for the research, characterization, and application of in-situ anchoring of metal organic frameworks in photothermal catalytic CO2 reduction, and provided a green path for the supply of Syngas in industry.
科研通智能强力驱动
Strongly Powered by AbleSci AI