Preparation and Photocatalytic Properties of rGO/D_y~(3+)-TiO_2 Composites
Li Cuixia1; Wu Qianghong1; Zeng Pengfei2; Tan Gaowei2
2016
Source Publication硅酸盐学报
ISSN0454-5648
Volume44Issue:6Pages:872-877
AbstractDysprosium-doped titanium dioxide-decorated graphene oxide (GO/D_y~(3+)-TiO_2) was prepared with graphene oxide (GO), tetrabutyl titanate and dysprosium nitrate as precursors using an in-situ method of synthesis via a citric acid chelating sol-gel step. Afterwards, dysprosium doped titanium dioxide and reduced graphene oxide (rGO/D_y~(3+)-TiO_2) composite photocatalysts were obtained via a sodium borohydride reduction method. The composite materials were characterized by X-ray diffraction, transmission electron microscopy, Raman spectroscopy and photoluminescence spectroscopy, respectively. The effect of GO on the crystal structure of TiO_2, the lifetime of photogenerated carriers, and the morphology and photocatalytic activity of composite photocatalysts was investigated. The results show that D_y~(3+)-TiO_2 nanoparticles with anatase phase are well dispersed on the surface of the rGO sheets. The introduction of GO inhibits the grain growth of TiO_2 and the phase transformation from anatase to rutile. The photocatalytic activity of rGO/D_y~(3+)-TiO_2 is greater than that of D_y~(3+)-TiO_2.
Keywordtitanium dioxide dysprosium doped reduced graphene oxide citric acid photocatalysis
Indexed ByCSCD
Language英语
WOS Research AreaEngineering
WOS SubjectENGINEERING INDUSTRIAL
CSCD IDCSCD:5730581
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/71765
Collection材料科学与工程学院
Affiliation1.Lanzhou University of Technology,National Experimental Teaching Demonstration Center of Material Engineering, Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou, Gansu 730050, China
2.Lanzhou University of Technology, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals;;National Experimental Teaching Demonstration Center of Material Engineering, Lanzhou, Gansu 730050, China
First Author AffilicationLanzhou University of Technology
First Signature AffilicationLanzhou University of Technology
Recommended Citation
GB/T 7714
Li Cuixia,Wu Qianghong,Zeng Pengfei,et al. Preparation and Photocatalytic Properties of rGO/D_y~(3+)-TiO_2 Composites[J]. 硅酸盐学报,2016,44(6):872-877.
APA Li Cuixia,Wu Qianghong,Zeng Pengfei,&Tan Gaowei.(2016).Preparation and Photocatalytic Properties of rGO/D_y~(3+)-TiO_2 Composites.硅酸盐学报,44(6),872-877.
MLA Li Cuixia,et al."Preparation and Photocatalytic Properties of rGO/D_y~(3+)-TiO_2 Composites".硅酸盐学报 44.6(2016):872-877.
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