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Issue 12, 2012
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Highly efficient visible-light-driven photocatalytic activities in synthetic ordered monoclinic BiVO4 quantum tubes–graphene nanocomposites

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Abstract

Photocatalytic purification of polluted water is a very promising way to alleviate the increasingly serious water resources crisis. Despite tremendous efforts, developing visible-light-driven photocatalysts with high activity at low cost still remains a great challenge. Herein, we report for the first time the design and synthesis of ordered m-BiVO4 quantum tubes–graphene nanocomposites that exhibit unprecedented visible-light-driven photocatalytic activities, over 20 times faster than that of commercial P25 or bulk BiVO4 and roughly 1.5 times more active than that of bare m-BiVO4 quantum tubes. Notably, the unusual photoreactivities arise from the synergistic effects between the microscopic crystal structure of m-BiVO4 and macroscopic morphological features of ordered m-BiVO4 quantum tubes and two-dimensional graphene sheets. These structural features help to provide increased photocatalytic reaction sites, extended photoresponding range, enhanced charge transportation and separation efficiency simultaneously. Briefly, this work not only provides a simple and straightforward strategy for fabricating highly efficient and stable graphene-based nanocomposites, but also proves that these unique structures are excellent platforms for significantly improving their visible-light-driven photoactivities, holding great promise for their applications in the field of purifying polluted water resources.

Graphical abstract: Highly efficient visible-light-driven photocatalytic activities in synthetic ordered monoclinic BiVO4 quantum tubes–graphene nanocomposites

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Publication details

The article was received on 16 Feb 2012, accepted on 01 May 2012 and first published on 03 May 2012


Article type: Paper
DOI: 10.1039/C2NR30371J
Citation: Nanoscale, 2012,4, 3761-3767
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    Highly efficient visible-light-driven photocatalytic activities in synthetic ordered monoclinic BiVO4 quantum tubes–graphene nanocomposites

    Y. Sun, B. Qu, Q. Liu, S. Gao, Z. Yan, W. Yan, B. Pan, S. Wei and Y. Xie, Nanoscale, 2012, 4, 3761
    DOI: 10.1039/C2NR30371J

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