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Synthesis of Raspberry-Like SiO2-TiO2 Nanoparticles toward Antireflective and Self-Cleaning Coatings
Li, Xiaoyu1,2,3,4; He, Junhui1,2
2013-06-12
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume5Issue:11Pages:5282-5290
AbstractSilica-titania core-shell nanoparticles of 30, 40, 50, 55, 75, and 110 nm were prepared from tetraethyl orthosilicate (TEOS) and tetraisopropyl titanate (TIPT). After calcination, the amorphous titania shell transformed into anatase nanoparticles, and the silica-titania core-shell nanoparticles became raspberry-like nanoparticles. These nanoparticles were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, and UV-vis spectroscopy. Hierarchically structured antireflective and self-cleaning particulate coatings were fabricated on glass substrates via layer-by-layer (LbL) assembly using silica-titania core-shell nanoparticles and silica nanoparticles as building blocks followed by calcination. The maximum transmittance of coated glass substrates reached as high as ca. 97%, while that of the glass substrates is only ca. 91%. The morphologies of the coatings were observed by SEM and atom force microscopy (AFM). Such hierarchically structured raspberry-like SiO2-TiO2 nanoparticle coatings had superhydrophilic and antifogging properties. The coatings also showed photocatalytic activity toward organic pollutants and thus a self-cleaning property.
KeywordRaspberry-like Silica-tiania Nanoparticle Lbl Self-assembly Superhydrophilic Antifogging Photodegradation Self-cleaning
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1021/am401124j
Indexed BySCI
Language英语
WOS KeywordSENSITIZED SOLAR-CELLS ; MESOPOROUS SILICA NANOPARTICLES ; TIO2 NANOTUBE ARRAYS ; PHOTOCATALYTIC EFFICIENCY ; FACILE FABRICATION ; THIN-FILMS ; WATER ; DYE ; DEGRADATION ; NANOCRYSTALS
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000320484000106
Citation statistics
Cited Times:106[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13402
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Tech Inst Phys & Chem, Funct Nanomat Lab, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100864, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Xiaoyu,He, Junhui. Synthesis of Raspberry-Like SiO2-TiO2 Nanoparticles toward Antireflective and Self-Cleaning Coatings[J]. ACS APPLIED MATERIALS & INTERFACES,2013,5(11):5282-5290.
APA Li, Xiaoyu,&He, Junhui.(2013).Synthesis of Raspberry-Like SiO2-TiO2 Nanoparticles toward Antireflective and Self-Cleaning Coatings.ACS APPLIED MATERIALS & INTERFACES,5(11),5282-5290.
MLA Li, Xiaoyu,et al."Synthesis of Raspberry-Like SiO2-TiO2 Nanoparticles toward Antireflective and Self-Cleaning Coatings".ACS APPLIED MATERIALS & INTERFACES 5.11(2013):5282-5290.
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