Synthesis of Visible-Light-Driven SrAl2O4-Based Photocatalysts Using Surface Modification and Ion Doping

doi:10.1134/S003602442006031X

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	Synthesis of Visible-Light-Driven SrAl2O4-Based Photocatalysts Using Surface Modification and Ion Doping
	Shifa Wang 2,3; Gao, Huajing 2,4,5; Sun, Guangzhuang 2; Wang, Yong 2; Fang, Leiming 6; Yang, Liang 1; Lei, Li 7; Wei, Yong 2
刊名	Russian Journal of Physical Chemistry A
	2020-06-01
卷号	94 期号:6 页码:1234-1247
关键词	Aluminum compounds Azo dyes Cerium Gamma rays Irradiation Light Light absorption Manganese compounds Nanoparticles Optical properties Photocatalytic activity Photoluminescence Photoluminescence spectroscopy Synthesis (chemical) High photocatalytic activities Laser Raman spectroscopy Photo catalytic degradation Photogenerated carriers Photoluminescence properties Photoluminescence spectrum Polyacrylamide gel method Separation efficiency
ISSN号	00360244
DOI	10.1134/S003602442006031X
英文摘要	Abstract: The surface OH groups decorated monoclinic SrAl2O4 nanoparticles, Ce and Ce,Mn co-doped SrAl2O4 were synthesized by a gamma-ray irradiation assisted polyacrylamide gel method. The obtained material was used to study the color and optical properties and for the photocatalytic degradation of Congo red (CR) dye. The color and optical properties shows that the surface OH groups decorated SrAl2O4 nanoparticles is a potential white pigment. The Ce or Ce, Mn doping reduced the Eg value and significantly changed the light absorption capacity, the recombination rate of photogenerated carriers, photoluminescence properties and photocatalytic activity of SrAl2O4. Laser Raman spectroscopy shows three obvious luminescent background peaks at 398, 408, and 430 nm for the surface OH groups decorated SrAl2O4 nanoparticles. The photoluminescence spectrum detected at λex = 295 nm shows four luminescence peaks located at 330, 368, 420, and 468 nm for the SrAl2O4:Ce and SrAl2O4:Ce:Mn samples. The SrAl2O4:Ce:Mn phosphor have a high photocatalytic activity for the photodegradation of CR dye can be ascribed to the synergistic effects of the band edge position, light absorption capacity, utilization and separation efficiency of photogenerated carriers. © 2020, Pleiades Publishing, Ltd.
WOS研究方向	Chemistry
语种	英语
出版者	Pleiades journals
WOS记录号	WOS:000537451900026
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115756]
专题	兰州理工大学
作者单位	1.Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing; 400714, China; 2.School of Electronic and Information Engineering, Chongqing Three Gorges University, ChongqingWanzhou; 404000, China; 3.Chongqing Key Laboratory of Geological Environment Monitoring and Disaster Early-warning in Three Gorges Reservoir Area, Chongqing Three Gorges University, ChongqingWanzhou; 404000, China; 4.State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 5.School of Science, Lanzhou University of Technology, Lanzhou; 730050, China; 6.Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang; Sichuan; 621900, China; 7.Institute of Atomic and Molecular Physics, Sichuan University, Chengdu; 610065, China
推荐引用方式 GB/T 7714	Shifa Wang,Gao, Huajing,Sun, Guangzhuang,et al. Synthesis of Visible-Light-Driven SrAl2O4-Based Photocatalysts Using Surface Modification and Ion Doping[J]. Russian Journal of Physical Chemistry A,2020,94(6):1234-1247.
APA	Shifa Wang.,Gao, Huajing.,Sun, Guangzhuang.,Wang, Yong.,Fang, Leiming.,...&Wei, Yong.(2020).Synthesis of Visible-Light-Driven SrAl2O4-Based Photocatalysts Using Surface Modification and Ion Doping.Russian Journal of Physical Chemistry A,94(6),1234-1247.
MLA	Shifa Wang,et al."Synthesis of Visible-Light-Driven SrAl2O4-Based Photocatalysts Using Surface Modification and Ion Doping".Russian Journal of Physical Chemistry A 94.6(2020):1234-1247.