Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10154621 | International Journal of Hydrogen Energy | 2018 | 10 Pages |
Abstract
Exploiting photocatalysts with environmental friendliness, noble-metal-free and high efficiency is a great challenge for photocatalytic hydrogen evolution. In this work, we synthesized a novel MoS2/rGO/Cd0.6Zn0.4S composite catalyst based on microsphere-structural polymer with highly efficient photocatalytic activity under visible light irradiation. The 5.0%MoS2/rGO/Cd0.6Zn0.4S exhibited the highest H2 evolution rate of 11.7Â mmol/h/g, which about 2.1 times higher than that without MoS2 and 4 times higher than that without PSGM. This superior photocatalytic activity, further demonstrated by the transient photocurrent responses and electrochemical impedance spectrum, was attributed to the effective separation of the photo-generated charge carriers promoted by the positive synergetic effect between the MoS2 and graphene. This study provided a promising approach to achieve high-efficiency H2 evolution based on graphene and MoS2 without noble metals.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Haiyan Mu, Junfen Wan, Yuanwang Wu, Juan Xu, Le Wang, Xuejun Cao,