Effects of sacrificial reagents on photocatalytic hydrogen evolution over different photocatalysts

The effect of sacrificial reagents (SRs) on photocatalytic H 2 evolution rate over different photocatalysts was systematically studied. Zn 0.5 Cd 0.5 S, graphitic carbon nitride (g-C 3 N 4 ), and TiO 2 were chosen as typical photocatalysts, while alcohols, amines, carboxylic acids, and inorganic Na...

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Bibliographic Details
Published in:Journal of materials science 2017-05, Vol.52 (9), p.5155-5164
Main Authors: Wang, Mingjie, Shen, Shuling, Li, Long, Tang, Zhihong, Yang, Junhe
Format: Article
Language:English
Subjects:
Alcohols
Amines
Carbon nitride
Carboxylic acids
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallography and Scattering Methods
Hydrogen
Hydrogen evolution
Hydrogen production
Materials Science
Organic acids
Original Paper
Oxidation
Photocatalysis
Photocatalysts
Polymer Sciences
Reagents
Sodium sulfide
Sodium sulfite
Solid Mechanics
Titanium dioxide
Triethanolamine
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Summary:The effect of sacrificial reagents (SRs) on photocatalytic H 2 evolution rate over different photocatalysts was systematically studied. Zn 0.5 Cd 0.5 S, graphitic carbon nitride (g-C 3 N 4 ), and TiO 2 were chosen as typical photocatalysts, while alcohols, amines, carboxylic acids, and inorganic Na 2 S/Na 2 SO 3 were chosen as SRs. The results indicate that Na 2 S/Na 2 SO 3 , methanol, and triethanolamine are the most suitable SRs for Zn 0.5 Cd 0.5 S, TiO 2 , and g-C 3 N 4 , respectively. It was found that in selecting organic SRs, both the permittivity and oxidation potential have profound effects on the H 2 production efficiency, which will provide basis for choosing appropriate SRs for different photocatalysts.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-017-0752-z