文献类型：期刊文献

英文题名：Visible-Light-Driven Valorization of Biomass Intermediates Integrated with H2 Production Catalyzed by Ultrathin Ni/CdS Nanosheets

作者：Han, Guanqun[1];Jin, Yan-Huan[2,3];Burgess, R. Alan[1];Dickenson, Nicholas E.[1];Cao, Xiao-Ming[2,3];Sun, Yujie[1]

机构：[1]Utah State Univ, Dept Chem & Biochem, Logan, UT 84322 USA;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Ctr Computat Chem, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2017

卷号：139

期号：44

起止页码：15584

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20174604384723);WOS:【SCI-EXPANDED(收录号:WOS:000415028200008)】；

基金：Y.S. acknowledges the support of the National Science Foundation (CHE-1653978) and the Microscopy Core Facility at Utah State University. X.-M.C. is thankful for financial support from NSFC (21673072 and 21333003), and Program of Shanghai Subject Chief Scientist (17XD1401400), and computing time support from Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund (the second phase) under Grant No. U1501501.

语种：英文

外文关键词：Furfural - II-VI semiconductors - Light - Biomass - Carboxylation - Binding energy - Hydrogen production - Aldehydes - Nanosheets

摘要：Photocatalytic upgrading of crucial biomass -derived intermediate chemicals (i.e., furfural alcohol,5-hydroxymethylfurfural (HMF)) to value-added products (aldehydes and acids) was carried out on ultrathin CdS nanosheets (thickness similar to 1 nm) decorated with nickel (Ni/CdS). More importantly, simultaneous H-2 production was realized upon visible light irradiation under ambient conditions utilizing these biomass intermediates as proton sources. The remarkable difference in the rates of transformation of furfural alcohol and HMF to their corresponding aldehydes in neutral water was observed and investigated. Aided by theoretical computation, it was rationalized that the slightly stronger binding affinity of the aldehyde group in HMF to Ni/CdS resulted in the lower transformation of HMF to 2,5-diformylfuran compared to that of furfural alcohol to furfural. Nevertheless, photo catalytic oxidation of furfural alcohol and HMF under alkaline conditions led to complete transformation to the respective carboxylates with concomitant production of H-2.