Citation: WU Zhen-Yu, LI Feng-Jie, LI Cun, ZHU Wei-Ju, FANG Min. Preparation and Photocatalytic Properties of Different Morphological ZnO@ PANI Nanocomposites[J]. Chinese Journal of Inorganic Chemistry, ;2013, 29(10): 2091-2098. doi: 10.3969/j.issn.1001-4861.2013.00.245 shu

Preparation and Photocatalytic Properties of Different Morphological ZnO@ PANI Nanocomposites

1.
School of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China

Received Date: 20 January 2013
Available Online: 8 April 2013
Fund Project: 安徽省自然科学基金(No.11040606M33) (No.11040606M33)安徽大学博士启动基金(No.02303319)资助项目 (No.02303319)

The particle, rod, and spherical flower-like nano-ZnO with the uniform morphology and size were prepared through a simple direct precipitation method and hydrothermal method. Then nano-ZnO was modified by the silane coupling agent anilino-methyl-triethoxysilane (KH-42) (m-ZnO), and the nanocomposites consisted of m-ZnOand polyaniline (m-ZnO@PANI) were synthesized by Pickering emulsion polymerization method. XRD, SEM, HRTEM, FTIR, UV-Vis, TGwere used to characterize the shape, composition and structure of the nano-ZnO and m-ZnO@PANI nanocomposite. The photocatalytic activity of m-ZnO@PANI nanocomposites under UV-vis and visible light irradiation was evaluated by using nanocomposites as photocatalysts to degrade methylene blue (MB) dye molecules in aqueous solution. The results indicate that the nanocomposites have strong absorption of UVand visible light and good photocatalytic efficiency under UV-Vis and visible light irradiation. The photocatalytic efficiency of the rod nanocomposite is the best among them. The photodegradation rates under UV-Vis irradiation and visible light irradiation are 98.2% and 97.1% respectively. Furthermore, the recycled photodegradation efficiency of nanocomposite is stable and the second cycle photodegradation rate under UV-Vis irradiation was 96.0%.
- nano-ZnO; PANI; composite; photocatalyst
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沈阳化工大学材料科学与工程学院沈阳 110142