Fabrication of CNTs/TiO2 Porous Composite Film and Photocatalytic Performance

doi:10.7503/cjcu20120557

Abstract

Abstract:

A new method for the fabrication of CNTs/Fe-Ni/TiO₂ porous composite film was proposed. Firstly, nickel and iron doped titanium dioxide precursor containing block polymer P123 was prepared by sol-gel method. Then, Fe-Ni/TiO₂ porous film on SnO₂ doped with fluorine(FTO) conductive glass substrates was prepared using spray pyrolysis deposition(SPD) technique. Finally, carbon nanotubes(CNTs) were in situ grafted on Fe-Ni/TiO₂ porous film by chemical vapor deposition(CVD) method. The CNTs/Fe-Ni/TiO₂ porous composite film had macro-mesoporous structure and CNTs in situ grafted on TiO₂ had good graphite structure. And the CNTs/Fe-Ni/TiO₂ porous composite film photocatalyst was characterized by X-ray diffraction(XRD), field emission scanning electron microscopy(FESEM) transmission electron microscopy(TEM), Raman spectra and UV-Vis absorption spectra. The photocatalytic activities of prepared samples were investigated by the photodegradation of methyl orange. The results show that the photocatalytic activity is improved significantly by the doping of nickel and iron and the composition of CNTs.

Key words: Carbon nanotube, TiO₂, Composite film, Photocatalysis, Porous film

CLC Number:

O644

TrendMD:

ZHANG Zhe, CHEN Ai-Ping, MA Lei, HE Hong-Bo, LI Chun-Zhong. Fabrication of CNTs/TiO₂ Porous Composite Film and Photocatalytic Performance[J]. Chem. J. Chinese Universities, 2013, 34(3): 656.

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Fabrication of CNTs/TiO₂ Porous Composite Film and Photocatalytic Performance

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