典型文献
Hierarchical porous NiO as a noble-metal-free cocatalyst for enhanced photocatalytic H2 production of nitrogen-deficient g-C3N4
文献摘要:
Graphitic carbon nitride with nitrogen vacancies(NV-g-C3N4) as a photocatalyst has been studied in solar-driven energy conversion.However,expensive and rare noble metal co-catalysts such as Pt or Pd are required in the photocatalytic H2 evolution.Consequently,the exploration of low-cost and high-performance co-catalysts to replace expensive and rare noble metals has received more and more attention.Herein,a novel hierarchical porous NiO anchored on NV-g-C3N4 is successfully fabricated.The NV-g-C3N4/NiO photocatalysts exhibited outstanding H2 evolution rate under visible light irradiation in absence of noble metal co-catalysts.The optimized NV-g-C3N4/NiO (the mass ratio of NiO is ~ 1.7%) achieved a maximum H2 evolution rate of 170.60 μmol·g-1·h-1,exhibiting ~ 8.3-fold enhancement as compared to that of NV-g-C3N4.NiO as co-catalyst pro-vided more active sites for photocatalytic H2 evolution.Moreover,on the interface of NV-g-C3N4/NiO,an interface electric field is formed between NiO and host nitrogen-va-cated g-C3N4,facilitating the transfer of the photogenerated electrons from NV-g-C3N4 to NiO co-catalyst,resulting in significantly promoted migration and separation efficiency of the photogenerated charge carriers.
文献关键词:
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作者姓名:
Yu-Wei Liao;Jing Yang;Guo-Hong Wang;Juan Wang;Kai Wang;Su-Ding Yan
作者机构:
College of Chemistry and Chemical Engineering,Hubei Normal University,Huangshi 435002,China;Hubei Key Laboratory of Pollutant Analysis and Reuse Technology,Hubei Normal University,Huangshi 435002,China
文献出处:
引用格式:
[1]Yu-Wei Liao;Jing Yang;Guo-Hong Wang;Juan Wang;Kai Wang;Su-Ding Yan-.Hierarchical porous NiO as a noble-metal-free cocatalyst for enhanced photocatalytic H2 production of nitrogen-deficient g-C3N4)[J].稀有金属(英文版),2022(02):396-405
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AB值:
0.494307
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