Anatase TiO2 nanoparticles/carbon nanotubes nanofibers:: preparation, characterization and photocatalytic properties

被引：105

作者：

Hu, Guangjun

Meng, Xiangfu

Feng, Xiyan

Ding, Yanfen

Zhang, Shimin

Yang, Mingshu ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 17期

基金：

中国国家自然科学基金;

关键词：

CARBON NANOTUBES; NANOCRYSTALLINE ANATASE; ENHANCEMENT; FABRICATION; TITANIA; PHASE; SHAPE; SIZE;

D O I：

10.1007/s10853-007-1609-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, we report the preparation and photocatalytic properties of hybrid nanofibers/mats of anatase TiO2 nanoparticles and multi-walled carbon nanotubes (MWNTs) using combined sol-gel and electrospinning techniques. Poly(vinyl pyrrolidone) is used as a base polymer in the electrospinning suspension to assist the formation of nanofibers and subsequently removed by calcination. The hybrid nanofibers are characterized using XRD, Raman spectra, FT-IR, XPS, SEM, TEM and N-2 adsorption measurements. The results show that MWNTs are encapsulated by in-situ formed anatase TiO2 nanoparticles, with chemical bonding C-O-Ti between anatase TiO2 nanoparticles and MWNTs. Hybrid nanofibrous mats with moderate content of MWNTs (mass ratio TiO2:MWNTs = 100:20) exhibit enhanced adsorption ability and excellent photocatalytic activity. The composition, diameter and morphology of hybrid nanofibers can be tuned by varying sol-gel formulation, electrospinning parameter and post-treatment condition. TiO2/MWNTs hybrid nanofiber and mats have promising applications in water purification and solar cell areas.

引用

页码：7162 / 7170

页数：9

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