Journal of Textile Research ›› 2018, Vol. 39 ›› Issue (12): 78-83.doi: 10.13475/j.fzxb.20171203706

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Preparation and photocatalytic degradation decoloring of TiO2 / reduced graphene oxide composites

  

  • Received:2017-12-20 Revised:2018-09-14 Online:2018-12-15 Published:2018-12-17

Abstract:

In order to compare the photocatalytic degradation decoloring performance of TiO2 / reduced graphene oxide (rGO) composites and TiO2, TiO2 of different crystal forms and TiO2 / rGO composites were prepared by the hydrothermal method using tetrabutyl titanate as a precursor. TiO2 and TiO2 / rGO composites were characterized by ultraviolet diffuser, Fourier transform infrared spectroscopy, Raman spectrography, X-ray diffractometer, scanning electron microscope and so on. The degradation decoloring effect of Reactive Red 3BS dye by mixed crystal TiO2 and mixed crystal TiO2 / rGO composites were analyzed. The results show that mixed crystal TiO2 with coexisting anatase and rutile can be prepared under of hydrothermal reaction at 150 ℃ for 12 h and calcination at 650 ℃ for 4 h. Under alkaline conditions, pure brookite TiO2 can be prepared under hydrothermal reaction at 140 ℃ for 72 h without calcination. Mixed crystal TiO2 with coexisting anatase and rutile has certain degradation decoloring effect on Reactive Red 3BS dye. The degradation decoloring rate of mixed crystal TiO2 / rGO composites is up to 99% after 120 min.

Key words: mixed crystal TiO2, reduced graphene oxide, composite, photocatalysis, dye degradation decoloring

CLC Number: 

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[2] . Preparation and performance of self-cleaning fabrics based on Ag/TiO2 photocatalysis [J]. Journal of Textile Research, 2018, 39(12): 89-94.
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