Metal-modified Coal-based Graphene Composites and the Photocatalytic Performance

doi:10.7517/j.issn.1674-0475.2016.05.475

Abstract

Abstract:

In this paper, we report a facile hydrothermal method toward in situ growth of ultradispersed CuO/TiO₂ nanoparticles on coal-based graphene composites (CTG). The structure and morphology of composite materials were characterized by XRD, SEM and TEM, respectively. Then, the photocatalytic performance of CTG was evaluated based on photocatalytic reduction of CO₂ to methanol under visible light irradiation. The results showed that the yield of product methanol was highest when Cu contained in CuO/TiO₂/coal-based graphene composite was 2%(mass fraction) which showed a 5 fold increase in methanol production activity (94.79 μmol/g.cat) in comparison with coal-based graphene(19.05 μmol/g.cat) under the same conditions.

Key words: coal-based graphene, composites, photocatalytic, carbon dioxide

ZHANG Yating, LI Keke, REN Shaozhao, WANG Daiyu, ZHOU Anning, QIU Jieshan. Metal-modified Coal-based Graphene Composites and the Photocatalytic Performance[J]. Imaging Science and Photochemistry, 2016, 34(5): 475-481.

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