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Formation and Morphology of Zn2Ti3O8 Powders Using Hydrothermal Process without Dispersant Agent or Mineralizer
Department of Materials Science and Engineering, National Cheng Kung University, 1 Ta-Hsueh Road, Tainan 70101, Taiwan
Department of Mechanical Engineering, National Kaohsiung University of Applied Sciences, 415 Chien-Kung Road, Kaohsiung 80782, Taiwan
Department of Fragrance and Cosmetics Science, Kaohsiung Medical University, 100 Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan
Department of Materials Science and Engineering, National United University, 1 Lein-Da, Kung-Ching Li, Miao-Li 36003, Taiwan
Department of Electrical Engineering, Cheng Shiu University, 840, Cheng Ching Road, Niaosong, Kaohsiung 83347, Taiwan
* Author to whom correspondence should be addressed.
Received: 16 December 2010; in revised form: 18 January 2011 / Accepted: 19 January 2011 / Published: 28 January 2011
Abstract: Synthesis of Zn2Ti3O8 powders for attenuating UVA using TiCl4, Zn(NO3)2×6H2O and NH4OH as precursor materials by hydrothermal process has been investigated. The X-ray diffractometry (XRD) results show the phases of ZnO, anatase TiO2 and Zn2Ti3O8 coexisted when the zinc titanate powders were calcined at 600 °C for 1 h. When calcined at 900 °C for 1 h, the XRD results reveal the existence of ZnO, Zn2TiO4, rutile TiO2 and ZnTiO3. Scanning electron microscope (SEM) observations show extensive large agglomeration in the samples. Transmission electron microscope (TEM) and electron diffraction (ED) examination results indicate that ZnTiO3 crystallites formed with a size of about 5 nm on the matrix of plate-like ZnO when calcined at 700 °C for 1 h. The calcination samples have acceptable absorbance at a wavelength of 400 nm, indicating that the zinc titanate precursor powders calcined at 700 °C for 1 h can be used as an UVA-attenuating agent.
Keywords: Zn2Ti3O8 powders; hydrothermal; UVA-attenuating
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Wang, C.-L.; Hwang, W.-S.; Chang, K.-M.; Ko, H.-H.; Hsi, C.-S.; Huang, H.-H.; Wang, M.-C. Formation and Morphology of Zn2Ti3O8 Powders Using Hydrothermal Process without Dispersant Agent or Mineralizer. Int. J. Mol. Sci. 2011, 12, 935-945.
Wang C-L, Hwang W-S, Chang K-M, Ko H-H, Hsi C-S, Huang H-H, Wang M-C. Formation and Morphology of Zn2Ti3O8 Powders Using Hydrothermal Process without Dispersant Agent or Mineralizer. International Journal of Molecular Sciences. 2011; 12(2):935-945.
Wang, Cheng-Li; Hwang, Weng-Sing; Chang, Kuo-Ming; Ko, Horng-Huey; Hsi, Chi-Shiung; Huang, Hong-Hsin; Wang, Moo-Chin. 2011. "Formation and Morphology of Zn2Ti3O8 Powders Using Hydrothermal Process without Dispersant Agent or Mineralizer." Int. J. Mol. Sci. 12, no. 2: 935-945.