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Abstract:
The photocatalytic coupling reaction can be conducted in one pot to realize the simultaneous utilization of electrons and holes, thereby obtaining value-added fine chemicals and fuels. Herein, we report a binary nickel modified ZnIn2S4 (Ni:ZIS) for highly efficient photocatalytic selective oxidation of benzyl alcohol (BA) to benzaldehyde (BAD) integrated with hydrogen (H-2) evolution, in which Ni can promote photogenerated charge transfer for enhancing photoactivity. Particularly, the products of converting BA to aromatic compounds over blank ZnIn2S4 (ZIS) and Ni:ZIS show a marked difference under the same reaction conditions. Hydrobenzoin (HB) is the primary product over blank ZIS. After the introduction of Ni, the formation of HB is dramatically suppressed, resulting in higher selectivity of BAD, because the introduction of Ni facilitates the alpha-H abstraction. In addition, an analogous phenomenon has been observed on Ni-based compounds modified ZIS, such as NixP and NiS. It is hoped that this work would provide a feasible paradigm for modifying the surface of photocatalysts to tune the selectivity of product-oriented alcohols oxidation coupled with H-2 evolution in water.
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APPLIED CATALYSIS B-ENVIRONMENTAL
ISSN: 0926-3373
Year: 2020
Volume: 271
1 9 . 5 0 3
JCR@2020
2 0 . 3 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:160
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 122
SCOPUS Cited Count: 147
ESI Highly Cited Papers on the List: 4 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
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