Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications
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 microsc...
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sg-ntu-dr.10356-921432020-03-07T11:43:32Z Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications Liu, Jincheng Bai, Hongwei Wang, Yinjie Liu, Zhaoyang Zhang, Xiwang Sun, Darren Delai School of Civil and Environmental Engineering DRNTU::Engineering::Environmental engineering::Water treatment DRNTU::Engineering::Materials::Ecomaterials 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. Accepted version 2011-08-01T06:28:03Z 2019-12-06T18:18:11Z 2011-08-01T06:28:03Z 2019-12-06T18:18:11Z 2010 2010 Journal Article 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. 1616-301X https://hdl.handle.net/10356/92143 http://hdl.handle.net/10220/6951 10.1002/adfm.201001391 160342 en Advanced functional materials © 2009 Wiley-VCH Verlag. 7 p. application/pdf |
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DRNTU::Engineering::Environmental engineering::Water treatment DRNTU::Engineering::Materials::Ecomaterials Liu, Jincheng Bai, Hongwei Wang, Yinjie Liu, Zhaoyang Zhang, Xiwang Sun, Darren Delai 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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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. |
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School of Civil and Environmental Engineering |
author_facet |
School of Civil and Environmental Engineering Liu, Jincheng Bai, Hongwei Wang, Yinjie Liu, Zhaoyang Zhang, Xiwang Sun, Darren Delai |
format |
Article |
author |
Liu, Jincheng Bai, Hongwei Wang, Yinjie Liu, Zhaoyang Zhang, Xiwang Sun, Darren Delai |
author_sort |
Liu, Jincheng |
title |
Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
title_short |
Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
title_full |
Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
title_fullStr |
Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
title_full_unstemmed |
Self-assembling TiO2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
title_sort |
self-assembling tio2 nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications |
publishDate |
2011 |
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https://hdl.handle.net/10356/92143 http://hdl.handle.net/10220/6951 |
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1681048914775506944 |