A new route for the preparation of CoAl2O4 nanoblue pigments with high uniformity and its optical properties

doi:10.1007/s10971-018-4609-y

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	A new route for the preparation of CoAl2O4 nanoblue pigments with high uniformity and its optical properties
	Gao, Huajing 1,2; Yang, Hua 1; Wang, Shifa 2,3,4; Li, Danming 3; Wang, Fei 1,2; Fang, Leiming 4; Lei, Li 5; Xiao, Yuhua 3; Yang, Guixia 4
刊名	JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
	2018-04
卷号	86 期号:1 页码:206-216
关键词	Polyacrylamide gel route CoAl2O4 Nanoblue pigment Chelation mechanism Fluorescence mechanism
ISSN号	0928-0707
DOI	10.1007/s10971-018-4609-y
英文摘要	Gamma-ray irradiation assisted polyacrylamide gel route was used to prepare CoAl2O4 nanoblue pigments. In this route, citric acid was used as a carboxyl and hydroxyl type chelating agent. The phase purity, morphology, and optical and fluorescence properties of as-prepared samples were analyzed via X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrometer, transmission electron microscopy (TEM), UV-Visible spectrophotometer, and a confocal Raman system. XRD analysis indicates that the xerogel sintered at relatively low temperature (500 A degrees C) to obtain single phase CoAl2O4 nanopowders. The primary crystal of CoAl2O4 nanoblue pigment is only 28 nm characterized by TEM, which is more likely to be realized with high uniformity than that the CoAl2O4 nanopowders prepared by conventional polyacrylamide gel route. Optical properties of CoAl2O4 nanoblue pigment shows that the optical energy gap (Eg) of nanoblue pigment increases with the decrease of crystallite size. The CIE parameter of CoAl2O4 nanoblue pigment indicates that a different sintering temperature causes a variation in the color of nanoparticles. The fluorescence spectra show that a major blue emission band around 400 nm and a weaker side band located at 430 nm are observed when the excitation wavelength is 325 nm. The chelation mechanism and fluorescence mechanism of the CoAl2O4 nanoblue pigment have been analyzed based on the experimental results.
资助项目	National Natural Science Foundation of China[51662027] ; National Natural Science Foundation of China[61540043]
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000428277700022
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32731]
专题	省部共建有色金属先进加工与再利用国家重点实验室理学院设计艺术学院
通讯作者	Yang, Hua; Wang, Shifa
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Sci, Lanzhou 730050, Gansu, Peoples R China 3.Lanzhou Inst Phys, Sci & Technol Vacuum Technol & Phys Lab, Lanzhou 730000, Gansu, Peoples R China 4.China Acad Engn Phys, Inst Nucl Phys & Chem, Mianyang 621900, Sichuan, Peoples R China 5.Sichuan Univ, Inst Atom & Mol Phys, Chengdu 610065, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Gao, Huajing,Yang, Hua,Wang, Shifa,et al. A new route for the preparation of CoAl2O4 nanoblue pigments with high uniformity and its optical properties[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2018,86(1):206-216.
APA	Gao, Huajing.,Yang, Hua.,Wang, Shifa.,Li, Danming.,Wang, Fei.,...&Yang, Guixia.(2018).A new route for the preparation of CoAl2O4 nanoblue pigments with high uniformity and its optical properties.JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,86(1),206-216.
MLA	Gao, Huajing,et al."A new route for the preparation of CoAl2O4 nanoblue pigments with high uniformity and its optical properties".JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 86.1(2018):206-216.