Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received December 21, 2004
Accepted March 8, 2005
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Hydrothermal Synthesis of Titanium Dioxide Using Acidic Peptizing Agents and Their Photocatalytic Activity
Division of Applied Chemical Engineering, Pukyong National University, 100 Yongdang-dong, Nam-ku, Busan 608-739, Korea
sshong@pknu.ac.kr
Korean Journal of Chemical Engineering, May 2005, 22(3), 370-374(5), 10.1007/BF02719413
Download PDF
Abstract
We have prepared TiO2 nanoparticles by the hydrolysis of titanium tetraisopropoxide (TTIP) using HNO3 as a peptizing agent in the hydrothermal method. The physical properties of nanosized TiO2 have been investigated by TEM, XRD and FT-IR. The photocatalytic degradation of orange II has been studied by using a batch reactor in the presence of UV light. When the molar ratio of HNO3/TTIP was 1.0, the rutile phase appeared on the titania and the photocatalytic activity decreased with an increase of HNO3 concentration. The crystallite size of the anatase phase increased from 6.6 to 24.2 nm as the calcination temperature increased from 300 ℃ to 600 ℃. The highest activity on the photocatalytic decomposition of orange II was obtained with titania particles dried at 105 ℃ without a calcination and the photocatalytic activity decreased with increasing the calcination temperature. In addition, the titania particles prepared at 180 ℃ showed the highest activity on the photocatalytic decomposition of orange II.
Keywords
References
Chai YS, Lee JC, Kim BW, Korean J. Chem. Eng., 17(6), 633 (2000)
Cullity BD, Elements of X-Ray Diffraction, 2nd edn., Addision-Wesley, Reading, MA, 102 (1978)
Fujishima A, Hashimoto K, Watanabe T, "TiO2 Photocatalysis", 124, Inc, Tokyo, 124 (1999)
Gopal M, Chan WJ, Dejonghe LC, J. Mater. Sci., 32(22), 6001 (1997)
Hong SS, Ju CS, Lim CG, Ahn BH, Lim KT, Lee GD, J. Ind. Eng. Chem., 7(2), 99 (2001)
Hong SS, Lee MS, Lee GD, React. Kinet. Catal. Lett., 80, 145 (2003)
Lee GD, Jung SK, Jeong YJ, Park JH, Suh CS, Ahn BH, Hong SS, J. Ind. Eng. Chem., 8(1), 22 (2002)
Lim KT, Hwang HS, Lee MS, Lee GD, Hong SS, Johnston KP, Chem. Commun., 14, 1528 (2002)
Mu Y, Yu HQ, Zheng JC, Zhang SJ, J. Photochem. Photobiol. A-Chem., 163, 311 (2004)
Nam WS, Han GY, Korean J. Chem. Eng., 20(1), 180 (2003)
Pecchi G, Reyes P, Sanhueza P, Villasenor J, Chemosphere, 43, 141 (2001)
Reddy KM, Reddy CVG, Manorama SV, J. Solid State Chem., 158, 180 (2001)
Ryu YB, Lee MS, Park SS, Lee GD, Hong SS, React. Kinet. Catal. Lett., in press.
Turchi CS, Ollis DF, J. Catal., 122, 178 (1990)
Wang C, Ying JY, Chem. Mater., 11, 3113 (1999)
Wold A, Chem. Mater., 5, 280 (1993)
Yang J, Mei S, Ferreira JMF, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 15, 183 (2001)
Cullity BD, Elements of X-Ray Diffraction, 2nd edn., Addision-Wesley, Reading, MA, 102 (1978)
Fujishima A, Hashimoto K, Watanabe T, "TiO2 Photocatalysis", 124, Inc, Tokyo, 124 (1999)
Gopal M, Chan WJ, Dejonghe LC, J. Mater. Sci., 32(22), 6001 (1997)
Hong SS, Ju CS, Lim CG, Ahn BH, Lim KT, Lee GD, J. Ind. Eng. Chem., 7(2), 99 (2001)
Hong SS, Lee MS, Lee GD, React. Kinet. Catal. Lett., 80, 145 (2003)
Lee GD, Jung SK, Jeong YJ, Park JH, Suh CS, Ahn BH, Hong SS, J. Ind. Eng. Chem., 8(1), 22 (2002)
Lim KT, Hwang HS, Lee MS, Lee GD, Hong SS, Johnston KP, Chem. Commun., 14, 1528 (2002)
Mu Y, Yu HQ, Zheng JC, Zhang SJ, J. Photochem. Photobiol. A-Chem., 163, 311 (2004)
Nam WS, Han GY, Korean J. Chem. Eng., 20(1), 180 (2003)
Pecchi G, Reyes P, Sanhueza P, Villasenor J, Chemosphere, 43, 141 (2001)
Reddy KM, Reddy CVG, Manorama SV, J. Solid State Chem., 158, 180 (2001)
Ryu YB, Lee MS, Park SS, Lee GD, Hong SS, React. Kinet. Catal. Lett., in press.
Turchi CS, Ollis DF, J. Catal., 122, 178 (1990)
Wang C, Ying JY, Chem. Mater., 11, 3113 (1999)
Wold A, Chem. Mater., 5, 280 (1993)
Yang J, Mei S, Ferreira JMF, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 15, 183 (2001)
