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Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications

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Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications

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dc.contributor.author Liu, Jincheng
dc.contributor.author Bai, Hongwei
dc.contributor.author Wang, Yinjie
dc.contributor.author Liu, Zhaoyang
dc.contributor.author Zhang, Xiwang
dc.contributor.author Sun, Darren Delai
dc.date.accessioned 2011-08-01T06:28:03Z
dc.date.available 2011-08-01T06:28:03Z
dc.date.copyright 2010
dc.date.issued 2011-08-01
dc.identifier.citation Liu, J., Bai, H., Wang, Y., Liu, Z., Zhang, X., & Sun, D. D. (2010). Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and its anti-recombination in photocatalytic application. Advanced Functional Materials, 20, 4175-4181.
dc.identifier.issn 1616-301X
dc.identifier.uri http://hdl.handle.net/10220/6951
dc.description.abstract TiO 2 nanorods are self-assembled on the graphene oxide (GO) sheets at the water/toluene interface. The self-assembled GO–TiO 2 nanorod composites (GO–TiO 2 NRCs) can be dispersed in water. The effective anchoring of TiO 2 nanorods on the whole GO sheets is confirmed by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform IR spectroscopy (FTIR), and thermogravimetric analysis (TGA). The significant increase of photocatalytic activity is confirmed by the degradation of methylene blue (MB) under UV light irridiation. The large enhancement of photocatalytic activity is caused by the effective charge anti-recombination and the effective absorption of MB on GO. The effective charge transfer from TiO 2 to GO sheets is confirmed by the significant photoluminescence quenching of TiO 2 nanorods, which can effectively prevent the charge recombination during photocatalytic process. The effective absorption of MB on GO is confirmed by the UV-vis spectra. The degradation rate of MB in the second cycle is faster than that in the first cycle because of the reduction of GO under UV light irradiation.
dc.format.extent 7 p.
dc.language.iso en
dc.relation.ispartofseries Advanced functional materials
dc.rights © 2009 Wiley-VCH Verlag.
dc.subject DRNTU::Engineering::Environmental engineering::Water treatment.
dc.subject DRNTU::Engineering::Materials::Ecomaterials.
dc.title Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications
dc.type Journal Article
dc.contributor.school School of Civil and Environmental Engineering
dc.identifier.doi http://dx.doi.org/10.1002/adfm.201001391
dc.description.version Accepted version
dc.identifier.rims 160342

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