| Title: | Photochromism-based detection of volatile organic compounds by W-doped TiO2 nanofibers |
| Author(s): | Jin M; Zhang X; Pu H; Nishimoto S; Murakami T; Fujishima A; |
| Address: | "Institute of Functional Polymer Materials, School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai 201804, PR China. mingjin@tongji.edu.cn" |
| DOI: | 10.1016/j.jcis.2011.06.041 |
| ISSN/ISBN: | 1095-7103 (Electronic) 0021-9797 (Linking) |
| Abstract: | "W-doped TiO(2) nanofibers with various compositions (W/Ti: 2-8%) were fabricated by the electrospinning method from respective precursor solutions containing tungsten(V) pentaethoxide, titanium tetraisopropoxide (TTIP), and polyvinylpyrrolidone (PVP), followed with calcination at 550 degrees C. Morphological and structural characteristics of these nanofibers were studied with SEM, XRD and XPS. W-doping inhibited the crystal growth and anatase-to-rutile transformation of TiO(2) nanofibers. W-doped TiO(2) nanofiber mats showed good photocatalytic oxidation abilities for acetone. Obvious color change from white to blue of mats during the photocatalysis process can be detected by naked eyes, which provides a good way in detection of pollutants in indoor air, especially for the volatile organic compounds (VOCs)" |
| Keywords: | "Nanofibers/*chemistry/ultrastructure Oxidation-Reduction Photochemical Processes Spectrophotometry, Ultraviolet Titanium/*chemistry Volatile Organic Compounds/*analysis;" |
| Notes: | "MedlineJin, Ming Zhang, Xintong Pu, Hongting Nishimoto, Shunsuke Murakami, Taketoshi Fujishima, Akira eng Research Support, Non-U.S. Gov't 2011/07/12 J Colloid Interface Sci. 2011 Oct 1; 362(1):188-93. doi: 10.1016/j.jcis.2011.06.041. Epub 2011 Jun 23" |
