General strategy for a large-scale fabric with branched nanofiber-nanorod hierarchical heterostructure: Controllable synthesis and applications

Meng Shang, Wenzhong Wang, Wenzong Yin, Jia Ren, Songmei Sun, Ling Zhang

    Research output: Contribution to journalArticlepeer-review

    75 Citations (Scopus)

    Abstract

    The preparation and characterization of a branched nanofiber- nanorod hierarchical heterostructure fabric (TiO2/NiO, TiO2/ZnO, and TiO2/ SnO2) are described. The nanomaterial was synthesized on a large scale by an inexpensive, generalizable, facile, and controllable approach by combining the electrospinning technique with a hydrothermal method. The controllable formation process and factors (assistance by hexamethylenetetramine and metal oxide nuclei) influencing the morphology of the branched hierarchical heterostructure are discussed. In addition, photocurrent and photocata- lytic studies suggest that the branched hierarchical heterostructure fabric shows higher mobility of charge carriers and enhanced photocatalytic activity relative to a bare TiO2 nanofibrous mat and other heterostructures under irradiation by light. This work demonstrates the possibility of growing branched heterostructure fabrics of various uniform, one-dimensional, functional metal oxide nanorods on a TiO2 nanofibrous mat, which has a tunable morphology by changing the precursor. The study may open a new channel for building hierarchical heterostructure device fabrics with optical and catalytic properties, and allow the realization of a new class of nano-heterostructure devices.

    Original languageEnglish
    Pages (from-to)11412-11419
    Number of pages8
    JournalChemistry - A European Journal
    Volume16
    Issue number37
    DOIs
    Publication statusPublished - Oct 4 2010

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Organic Chemistry

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