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Tunable Syngas Synthesis from Photocatalytic CO2 Reduction Under Visible-Light Irradiation by Interfacial Engineering

查看全文 作　　者：Conghui [1]Qiu;Sha [1]Bai;Wenjing [1]Cao;Ling [1]Tan;Junyan [1]Liu;Yufei [1]Zhao;Yu-Fei [1]Song 高影响力作者 机构地区：[1]State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical Technology,Beijing 100029,China高影响力机构 出　　处：《Transactions of Tianjin University》索引2020年第26卷第5期,共10页高影响力期刊 基　　金：the National Natural Science Foundation of China(Nos.U1707603,21878008,21625101,and U1507102,21922801);the Beijing Natural Science Foundation(Nos.2182047 and 2202036);the Fundamental Research Funds for the Central Universities(Nos.XK1802-6,XK1902,12060093063,and 2312018RC07). 摘　　要：Visible-light-driven CO2 photoreduction to achieve renewable materials,such as syngas,hydrocarbons,and alcohols,is a key process that could relieve environmental problems and the energy crisis simultaneously.Reduction of syngas products with diff erent H2:CO proportions is highly expected to produce high value-added chemicals in the industry.However,the development of technologies employing long-wavelength irradiation to achieve CO2 photoreduction and simultaneous tuning of the resultant H2:CO proportion remains a challenging endeavor.In this work,we carried out interfacial engineering by designing a series of heterostructured layered double-hydroxide/MoS2 nanocomposites via electrostatic self-assembly.The syngas proportion(H 2:CO)obtained from CO2 photoreduction could be modulated from 1:1 to 9:1 by visible-light irradiation(λ>400 nm)under the control of the interface-rich heterostructures.This work provides a cost-eff ective strategy for solar-tofuel conversion in an artificial photosynthetic system and describes a novel route to produce syngas with targeted proportions. 关 键 词：Interfacial engineering LDH/MoS2 CO2 photoreduction Syngas synthesis Heterostructure
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