Ultrasound-induced capping of polystyrene on TiO2 nanoparticles by precipitation with compressed CO2 as antisolvent

doi:10.1166/jnn.2005.124

CORC > 化学研究所 > 中国科学院化学研究所

	Ultrasound-induced capping of polystyrene on TiO2 nanoparticles by precipitation with compressed CO2 as antisolvent
	Zhang, JL; Liu, ZM; Han, BX; Li, JC; Li, ZH; Yang, GY
刊名	JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
	2005-06-01
卷号	5 期号:6 页码:945-950
关键词	Tio2 Nanoparticles Polystyrene Co2 Antisolvent Ultrasound Core-shell Composite Particles
ISSN号	1533-4880
DOI	10.1166/jnn.2005.124
英文摘要	In this work, a route for the synthesis of inorganic/polymer core/shell composite nanoparticles was proposed, which can be called the antisolvent-ultrasound method. Compressed CO2 was used as antisolvent to precipitate the polymer from its solution dispersed with inorganic nanoparticles, during which ultrasonic irradiation was used to induce the coating of precipitated polymers on the surfaces of the inorganic nanoparticles. TiO2/Polystyrene (PS) core/shell nanocomposites have been successfully prepared using this method. The transmission electronic micrographs (TEM) of the obtained nanocomposites show that the TiO2 nanoparticles are coated by the PS shells, of which the thickness can be tuned by the pressure of CO2. The phase structure, absorption properties, and thermal stability of the composite were characterized by X-ray diffraction (XRD), UV-vis spectra, and thermogravimetry, respectively. The results of X-ray photoelectron spectra (XPS) indicate the formation of a strong interaction between PS and TiO2 nanoparticles in the resultant products. This method has some potential advantages for applications and may be easily applied to the preparation of a range of inorganic/polymer core/shell composite nanoparticles.
语种	英语
出版者	AMER SCIENTIFIC PUBLISHERS
WOS记录号	WOS:000229752600017
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/56081]
专题	中国科学院化学研究所
通讯作者	Han, BX
作者单位	Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JL,Liu, ZM,Han, BX,et al. Ultrasound-induced capping of polystyrene on TiO2 nanoparticles by precipitation with compressed CO2 as antisolvent[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2005,5(6):945-950.
APA	Zhang, JL,Liu, ZM,Han, BX,Li, JC,Li, ZH,&Yang, GY.(2005).Ultrasound-induced capping of polystyrene on TiO2 nanoparticles by precipitation with compressed CO2 as antisolvent.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,5(6),945-950.
MLA	Zhang, JL,et al."Ultrasound-induced capping of polystyrene on TiO2 nanoparticles by precipitation with compressed CO2 as antisolvent".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 5.6(2005):945-950.