One-step synthesis of 2D/2D-3D NiS/Zn3In2S6 hierarchical structure toward solar-to-chemical energy transformation of biomass-relevant alcohols

被引:160
作者
Meng, Sugang [1 ,2 ]
Wu, Huihui [1 ]
Cui, Yanjuan [3 ]
Zheng, Xiuzhen [1 ]
Wang, Hao [3 ]
Chen, Shifu [1 ]
Wang, Yaxiao [2 ]
Fu, Xianliang [1 ]
机构
[1] Huaibei Normal Univ, Coll Chem & Mat Sci, Huaibei 235000, Peoples R China
[2] Fuzhou Univ, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350116, Peoples R China
[3] Jiangsu Univ Sci & Technol, Sch Environm & Chem Engn, Zhenjiang 212003, Jiangsu, Peoples R China
关键词
Visible light; Photocatalysis; Metal sulfide; Nanocomposite; Hydrogen evolution; PHOTOCATALYTIC H-2 EVOLUTION; IN-SITU PHOTODEPOSITION; HYDROGEN-PRODUCTION; AROMATIC ALCOHOLS; HETEROJUNCTION PHOTOCATALYSTS; SELECTIVE OXIDATION; PHOTOGENERATED CARRIERS; HIGHLY EFFICIENT; CDS; GENERATION;
D O I
10.1016/j.apcatb.2020.118617
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
To realize highly efficient production of H2 and conversion of biomass-relevant alcohols are hot spots in energy and environmental science. Herein, we have fabricated noble metal-free 2D/2D-3D NiS/Zn3In2S6 hierarchical architecture by one-step method for efficiently visible-light-driven dehydrogenation of 5-hydroxymethylfurfural (HMF) into H-2 and 2,5-diformylfuran (DFF) with high selectivity. The separation of photoexcited electrons (e(-)) and holes (h(+)) can be promoted in this dual-function photocatalysis process. More importantly, both e(-) and h(+) are involved in the desired conversions, i.e. the generation of H-2 and the production of value-added chemicals, respectively. The conversion was favored not only by thermodynamics, but also kinetics. The H-2-evolution rate in HMF solution was up to 1090.9 times than in water. Additionally, the DFF selectivity could reach up to 94.1 %. Such designed dual-function photocatalytic system could be more feasible and practical in the perspective of the sustainable and green development.
引用
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页数:10
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