Authors: Guangjun Hu Xiangfu Meng Xiyan Feng Yanfen Ding Shimin Zhang Mingshu Yang
Publish Date: 2007/05/10
Volume: 42, Issue: 17, Pages: 7162-7170
Abstract
In the present work we report the preparation and photocatalytic properties of hybrid nanofibers/mats of anatase TiO2 nanoparticles and multiwalled carbon nanotubes MWNTs using combined sol–gel and electrospinning techniques Polyvinyl 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 FTIR XPS SEM TEM and N2 adsorption measurements The results show that MWNTs are encapsulated by insitu 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 TiO2MWNTs = 10020 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 posttreatment condition TiO2/MWNTs hybrid nanofiber and mats have promising applications in water purification and solar cell areas
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