NDLI: Structure and photocatalytic properties of TiO2-Graphene Oxide intercalated composite

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Structure and photocatalytic properties of TiO2-Graphene Oxide intercalated composite

Content Provider	Paperity
Author	Yin, Ting Hu, Donghu Ji, Lingli Zhang, Qiong He, Yunqiu Li, Linjiang Chen, Xiaogang
Abstract	TiO2-Graphene Oxide intercalated composite (TiO2-Graphene Oxide) has been successfully prepared at low temperature (80°C) with graphite oxide (GO) and titanium sulfate (Ti(SO4)2) as initial reactants. GO was firstly exfoliated by NaOH and formed single and multi-layered graphite oxide mixture which can be defined as graphene oxide, [TiO]2+ induced by the hydrolysis of Ti(SO4)2 diffused into graphene oxide interlayer by electrostatic attraction. The nucleation and growth of TiO2 crystallites took place at low temperature and TiO2-Graphene Oxide composite was successfully synthesized. Furthermore, the photocatalytic properties of TiO2-Graphene Oxide under the irradiation of UV light were also studied. The results show that the degradation rate of methyl orange is 1.16 mg min−1 g−1(refer to the efficiency of the initial 15 min). Compared with P25 powder, this kind of intercalation composite owns much better efficiency. On the other hand, the reusable properties and stable properties of TiO2-Graphene Oxide intercalated composite are also discussed in this paper. At last, crystalline structure, interface status, thermal properties and microscopic structure of TiO2-Graphene Oxide were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM) and high-resolution Transmission Electron Microscopy (HRTEM). Also, we have analyzed major influencing factors and mechanism of the composite structures which evidently improve the photocatalytic properties.
Starting Page	331
Ending Page	339
File Format	HTM / HTML
ISSN	20959273
DOI	10.1007/s11434-010-3111-x
Issue Number	3
Journal	Science Bulletin
Volume Number	56
e-ISSN	20959281
Language	English
Publisher	Science China Press
Publisher Date	2011-01-26
Access Restriction	Open
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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