Synergetic effect of Cu and graphene as cocatalyst on TiO 2 for enhanced photocatalytic hydrogen evolution from solar water splitting

Xiao Jun Lv, Shi Xiong Zhou, Chen Zhang, Hai Xin Chang, Yong Chen, Wen Fu Fu

    Research output: Contribution to journalArticlepeer-review

    142 Citations (Scopus)

    Abstract

    In photocatalytic solar water splitting systems, non-noble and highly active cocatalysts have always been pursued with tremendous interest. Herein an active and cheap photocatalyst, using Cu and graphene synergetically as co-catalysts immobilized on TiO 2, was studied. This synergetic photocatalyst displayed enhanced photocatalytic hydrogen generation from water splitting in the presence of methanol as a sacrificial reagent. The hydrogen generation efficiency from the Cu-graphene synergetic cocatalyst was about 5 times higher than that of a pure graphene cocatalyst, and can be compared with that of systems containing the well-known Pt cocatalyst. Therefore this Cu-graphene synergetic cocatalyst provides an inexpensive means of harnessing solar energy to achieve efficient hydrogen evolution from water splitting.

    Original languageEnglish
    Pages (from-to)18542-18549
    Number of pages8
    JournalJournal of Materials Chemistry
    Volume22
    Issue number35
    DOIs
    Publication statusPublished - 2012 Sep 21

    ASJC Scopus subject areas

    • Chemistry(all)
    • Materials Chemistry

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