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A single-step direct hydrothermal synthesis of SrTiO3 nanoparticles from crystalline P25 TiO2 powders
Zhang, Yabing1,2; Zhong, Li; Duan, Dongping1,3
2016
Source PublicationJOURNAL OF MATERIALS SCIENCE
Volume51Issue:2Pages:1142-1152
SubtypeArticle
AbstractIn the study, strontium titanium (SrTiO3) nanoparticles were successfully synthesized by a single-step direct hydrothermal process under alkaline condition from crystalline P25 titanium dioxide (TiO2) powders and strontium hydroxide octahydrate (Sr(OH)(2)center dot 8H(2)O) at 220A degrees C. The samples obtained were characterized by X-ray diffraction (XRD), indicating that the products were highly crystalline cubic SrTiO3 nanoparticles. The lattice parameter, unit cell volume, and atomic position were refined by Highscore Plus and Maud program to determine the crystal structure parameters. The thermal field emission scanning electron microscope and energy-dispersive spectrometer (FE-SEM-EDS) showed the samples prepared were cubic SrTiO3 nanoparticles with regular morphology. The fine morphologies and structures of SrTiO3 were investigated by field emission high-resolution transmission electron microscope (HR-TEM). The specific surface areas of samples were investigated by the BET method. As a comparison, SrTiO3 nanoparticles also were synthesized by solid-state reaction. The samples synthesized by hydrothermal method have bigger specific surface areas and smaller grain sizes than the sample synthesized by solid-state method. Big mole ratio Sr/Ti and short reaction time are helpful to produce small particles with large specific surface area. The reaction mechanism of the hydrothermal process was illustrated finally.
WOS HeadingsScience & Technology ; Technology
WOS KeywordBARIUM-TITANATE ; PHOTOCATALYTIC ACTIVITY ; DOPED SRTIO3 ; STRONTIUM-TITANATE ; PEROVSKITE NANOCRYSTALS ; LOW-TEMPERATURE ; FINE POWDERS ; PERFORMANCE ; MECHANISMS ; EFFICIENT
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000365263900048
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6170
Collection青海盐湖研究所知识仓储
盐湖资源综合利用工程技术中心
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Qinghai 810008, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yabing,Zhong, Li,Duan, Dongping. A single-step direct hydrothermal synthesis of SrTiO3 nanoparticles from crystalline P25 TiO2 powders[J]. JOURNAL OF MATERIALS SCIENCE,2016,51(2):1142-1152.
APA Zhang, Yabing,Zhong, Li,&Duan, Dongping.(2016).A single-step direct hydrothermal synthesis of SrTiO3 nanoparticles from crystalline P25 TiO2 powders.JOURNAL OF MATERIALS SCIENCE,51(2),1142-1152.
MLA Zhang, Yabing,et al."A single-step direct hydrothermal synthesis of SrTiO3 nanoparticles from crystalline P25 TiO2 powders".JOURNAL OF MATERIALS SCIENCE 51.2(2016):1142-1152.
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