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- Characterization of TiO2 Synthesized in Acidic Conditions at Low Temperature by Sol-gel Method
- Thanh Binh Nguyen, Moon-Jin Hwang, Seon-Sam Lee, Dong-Eon Choe, Kwang-Sun Ryu
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Journal of Korean Powder Metallurgy Institute 2010;17(5):409-414
DOI: https://doi.org/10.4150/KPMI.2010.17.5.409
1Department of Chemistry, University of Ulsan
2Energy Harvest-Storage Research Center, University of Ulsan
3Sunkyoung Watech Co., Ltd.
4Sunkyoung Watech Co., Ltd.
5Department of Chemistry, University of Ulsan
2Energy Harvest-Storage Research Center, University of Ulsan
3Sunkyoung Watech Co., Ltd.
4Sunkyoung Watech Co., Ltd.
5Department of Chemistry, University of Ulsan
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Abstract
Titanium dioxide (TiO_2), which is one of the most basic materials in our daily life, plays a key role for environment purification. We synthesized TiO_2 nanoparticles by the hydrolysis reactions of titanium tetraisopropoxide using HNO_3 as a peptizing agent or CH_3COOH as a chelating agent in the sol-gel method. The powder consisted of a rod shape or a spherical shape according to the concentration and kind of acid. The physical properties of TiO_2 nanoparticles were investigated with X-ray diffraction, SEM, BET analysis, and UV-Vis spectrophotometer.
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