Photo-Anodic Polymerization of Pyrrole on Nanoclustered Tio2 from Hydrothermal One-Step on Pure Ti-Reference-Cited by-同舟云学术

Photo-Anodic Polymerization of Pyrrole on Nanoclustered Tio2 from Hydrothermal One-Step on Pure Ti

Published:2014-10 Issue:8 Volume:22 Page:729-736
ISSN:0967-3911
Container-title:Polymers and Polymer Composites
language:en
Short-container-title:Polymers and Polymer Composites

Author:

Zhou Fu-fang¹²,Li Delong¹,Li Weiping¹,Zhu Xilou²,Wang Ping³,Huang Yuan Ming⁴,Pan Chunxu¹

Affiliation:

1. School of Physics and Technology, and MOE Key Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan 430072, China

2. College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650500, China

3. College of Chemistry & Chemical Industry, Yunnan Normal University, Yunnan 650500, China

4. School of Mathematics and Physics, Changzhou University, Jiangsu 213164, China

Abstract

Nanoclustered TiO2 networks were synthesized hydrothermally one-step in 0.45 M tetramethylammonium hydroxide (TMAOH) aqueous solution directly on pure polished Ti substrate for 12-hour growth. Polypyrrole (PPy) nanofilm was subsequently electropolymerized with galvanostatic photo-anodization on the nanostructured TiO2 sheet as the working electrode. Tafel polarization curve was employed to determine galvanostatic condition. Investigations of SEM, cyclic voltametry, potential-time growing curves, photo-response currents, UV-vis spectroscopy and Fourier Transform Infra-red (FTIR) spectroscopy revealed that photo-anodic polymerized pyrrole film could thoroughly change properties of nanoclustered TiO2 electrode. The networks of nanoclustered TiO2 was covered with homogeneous PPy nanofilm, the cyclic voltammetry revealed two reduction peaks, suggesting a compact and a porous layer of PPy. Moreover, PPy could enhance the photo-response by over 100 times compared with that of bare TiO2 nanonetworks. Optical absorbance visualized the full spectral absorptive feature of PPy, and FTIR further confirmed the vibrations of chemical bonds from PPy. This demonstrated that PPy infiltration in TiO2 nanonetworks could be successfully achieved via photo-anodic polymerization, and TiO2 nanonetworks/photo-anodic polymerized PPy are promising in applications of polymer-inorganic solar cell.

Publisher

SAGE Publications

Subject

Materials Chemistry,Polymers and Plastics,Ceramics and Composites

Link

http://journals.sagepub.com/doi/pdf/10.1177/096739111402200812

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