Photocatalytic degradation activity of BaTiO3 nanoparticles modified with au in simulated sunlight

doi:10.11901/1005.3093.2016.222

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	Photocatalytic degradation activity of BaTiO3 nanoparticles modified with au in simulated sunlight
	Xian, Tao 1; Di, Lijing 1,2; Ma, Jun 1; Sang, Cuicui 1; Wei, Xuegang 1; Zhou, Yongjie 1
刊名	Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
	2017-02-25
卷号	31 期号:2 页码:102-109
关键词	Aromatic compounds Barium titanate Complexation Deposition Gold Gold deposits High resolution transmission electron microscopy Nanoparticles Photocatalysis Photocatalytic activity Photoluminescence spectroscopy Reusability Surface plasmon resonance BaTiO3 BaTiO3 nanoparticles Composite photocatalysts Diffuse reflectance spectroscopy Modification Photo catalytic degradation Photocatalytic reduction Photogenerated electrons
ISSN号	10053093
DOI	10.11901/1005.3093.2016.222
英文摘要	BaTiO3 nanoparticles were fabricated by gel method with polyacrylamide as raw material, and then Au nanoparticles were deposited on the surface of BaTiO3 via a photocatalytic reduction method to yield Au/BaTiO3 composite photocatalysts. The composite photocatalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS) and photoluminescence (PL) spectroscopy. The results show that the BaTiO3 particles undergo no structural change after the deposition of gold; The Au particles with size of 5-20 nm were deposited on the surface of BaTiO3 particles with an average size of ~55 nm; The composites present light absorbance centered around 560 nm due to the surface plasmon resonance (SPR) effect of Au nanoparticles; The Au/BaTiO3 composites exhibit a reduction in recombination probability of photo-generated electrons and holes compared to bare BaTiO3. In addition, the formation mechanism for Au nanoparticles on the surface of BaTiO3 particles is proposed. The photocatalytic activity of the as-prepared composite photocatalyst was evaluated by the degradation of methylene blue (MB) under simulated sunlight irradiation, and the photocatalytic stability of the composites was also investigated. The results reveal that the photocatalytic activity of BaTiO3 can be improved by the deposition of appropriate amount of gold, and moreover the composite photocatalyst exhibits good reusability. Finally, the promotion mechanism of Au particles on the simulated sunlight photocatalytic activity of BaTiO3 is also discussed. © All right reserved.
语种	中文
出版者	Chinese Journal of Materials Research
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114679]
专题	兰州理工大学
作者单位	1.Department of Physics, Qinghai Normal University, Xining; 810008, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Xian, Tao,Di, Lijing,Ma, Jun,et al. Photocatalytic degradation activity of BaTiO3 nanoparticles modified with au in simulated sunlight[J]. Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research,2017,31(2):102-109.
APA	Xian, Tao,Di, Lijing,Ma, Jun,Sang, Cuicui,Wei, Xuegang,&Zhou, Yongjie.(2017).Photocatalytic degradation activity of BaTiO3 nanoparticles modified with au in simulated sunlight.Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research,31(2),102-109.
MLA	Xian, Tao,et al."Photocatalytic degradation activity of BaTiO3 nanoparticles modified with au in simulated sunlight".Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research 31.2(2017):102-109.