E3S Web Conf.
Volume 165, 20202020 2nd International Conference on Civil Architecture and Energy Science (CAES 2020)
|Number of page(s)||4|
|Section||Chemical Engineering and Materials Science|
|Published online||01 May 2020|
Preparation and photocatalytic hydrogen evolution of g-C3N4/ZnO composite
School of physics and electronic information engineering; Qinghai Nationalities university, Xining, Qinghai, 810007, China
The photocatalytic composite of g-C3N4/ZnO with different g-C3N4 content have been prepared by thermopolymerization method. The catalysts are characterized and analyzed by SEM, XRD, UV-Vis, BET and other analytical methods. The results show that g-C3N4/ZnO composites caused the red shift of the absorption band edge of ZnO, which increased the absorption of visible light and the separation rate of photogenerated electron-hole pairs. It is found that the H2 production rate of 25% g-C3N4/ZnO sample is best with 306.25 μmol∙h-1∙g-1, which is 4.6 times higher than of g-C3N4.
© The Authors, published by EDP Sciences, 2020
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