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Thermostability of Nano-TiO2 and its photocatalytic activity |
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| Authors: | Yao-Hsuan Tseng Hong-Ying Lin Chien-Sheng Kuo Yuan-Yao Li and Chin-Pao Huang |
| Institution: | (1) Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan R.O.C., 301;(2) Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware 19716;(3) Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan , R.O.C., 621;(4) Department of Chemical Engineering, National Chung Cheng University, Chia-Yi, Taiwan , R.O.C., 621;(5) Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware 19716 |
| Abstract: | Summary Thermostability of P25 nanoparticle was carried out by ascending thermal annealing. The growth of particle was observed and the activation energy of phase transition was calculated. The photocatalytic reactivity was measured in terms of the degradation rate of methylene blue. Results indicated that the specific surface area and the aggregation of TiO2 are much important factors than the crystal phase on the photo-decoloration reaction. |
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