Open Access Fabrication of V-Doped TiO2 Nanofibers and Their Photocatalytic Property

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Abstract:

The V-TiO2 (V-doped TiO2)/cellulose acetate nanofibers with the diameter of (200 ± 53) nm were fabricated via an electrospinning technique using vanadium chloride and titanium tetra-isopropoxide as precursors, cellulose acetates as a fiber template, and N,N-dimethylformamide/ acetone (volume ratio is 1:2) as a co-solvent. The V-TiO2/cellulose acetate nanofibers were transformed into V-TiO2/cellulose nanofibers after treated with 0.1 mol/L NaOH/ethanol solution. The V-TiO2 nanofibers were obtained via calcination of V-TiO2/ cellulose nanofibers at 500 for 5 h. The structure and morphology of nanofibers were characterized by scanning electron microscopy, X-ray diffraction and UV–Vis diffuse reflectance spectroscopy, respectively. The photocatalytic activity of nanofibers toward the decomposition of rhodamine B was investigated. The results show that the light absorption efficiency is enhanced, and the photorespones are broadened by doping V according to the wavenumber at peak absorption. The degradation rate for the decomposition of rhodamine B by V-TiO2 and TiO2 nanofibers for 20 min is 67% and 77%, respectively.

Keywords: anatase; electrospinning; nanofibers; photocatalytic degradation; rhodamine B; vanadium doped titania

Document Type: Research Article

DOI: http://dx.doi.org/10.7521/j.issn.0454–5648.2013.06.26

Affiliations: 1: Department of Ecological and Resources Engineering, Wuyi University, Wuyishan 354300, Fujian, China 2: College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, China

Publication date: June 1, 2013

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  • Journal of the Chinese Ceramic Society (JCCS), published in Chinese and in English, is a comprehensive monthly periodical focused on the fields of inorganic and non-metallic materials. The main purpose of the JCCS is to report the latest creative achievements in research, production and design for ceramics, glass, cementing materials, refractory, artificial crystals and other non-metallic materials. JCCS is regarded as an important journal in inorganic and non-metallic materials sciences in China and has been awarded by China Association for Science and Technology. The full-text of papers in JCCS is also published by CNKI (China National Knowledge Infrastructure). JCCS is indexed in EI Compendex, CA( Chemical Abstracts) ,SA and Ж and more than 20 databases.
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