Carbon nanotubes-modified graphitic carbon nitride photocatalysts with synergistic effect of nickel(II) sulfide and molybdenum(II) disulfide co-catalysts for more efficient H evolution.

Author(s) Zhang, Y.X.; Li, K.; Yu, Y.X.; De Zhang, W.
Journal J Colloid Interface Sci
Date Published 2018 Sep 15

This work reports effective photocatalysts which are composed of carbon nitride (CN), carbon nanotubes (CNTs), MoS and NiS, for hydrogen evolution aiming at energy crises and environmental pollutions. The morphologies and optical properties of the photocatalysts were carefully characterized and their photocatalytic performance towards water reduction was studied afterwards. MoS and NiS exhibit a significant synergistic effect working as co-catalysts. Compared to MoS/CN nanohybrid, carbon nanotubes and NiS improved the absorption of visible light and the separation of charge carriers effectively. NiS-MoS/CNTs/CN catalyst exhibits high performance for H evolution and the optimized rate is 309.9 μmol·h·g with no noble metals under visible light irradiation. The study demonstrates a non-noble metal photocatalyst system for effective generation of hydrogen with low cost.

DOI 10.1016/j.jcis.2018.05.003
ISSN 1095-7103
Citation J Colloid Interface Sci. 2018;526:374383.

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