Photocatalytically active nanocrystalline titania particles were prepared using a hydrothermal process, by controlling the particle size and crystallinity. The crystalline structures and morphologies of the particles were characterized by X-ray diffraction and transmission electron microscopy. The BET method was used to determine the surface area and verify the grain size. To estimate the photocatalytic activity of the synthesized particles, a dye photodegradation experiment was carried out and the activity of the particles was compared with that of conventional titania. The results show that synthesized nanocrystalline titania particles had a higher photocatalytic activity than that of conventional titania. These findings provide a basis for the preparation of more effective and useful materials for use in AOP applications.
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Research Article|
February 01 2004
A novel synthetic method for nanosized crystalline titania for use in the decomposition of dyes
C.Y. Yun;
1School of Chemical Engineering, Seoul National University, Seoul 151-742, Republic of Korea (E-mail: chaos117@snu.ac.kr; mister@snu.ac.kr)
E-mail: chaos117@snu.ac.kr
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J. Moon;
J. Moon
1School of Chemical Engineering, Seoul National University, Seoul 151-742, Republic of Korea (E-mail: chaos117@snu.ac.kr; mister@snu.ac.kr)
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K. Chung;
K. Chung
2Dae Joo Fine Chemical Co., Ltd., Sihwa Indus. Estate 1Ra 110, Kyunggi 429-848, Republic of Korea (E-mail: kwchung@daejoo.co.kr)
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M. Kang;
M. Kang
3Dae Joo Fine Chemical Co., Ltd., Sihwa Indus. Estate 1Ra 110, Kyunggi 429-848, Republic of Korea (E-mail: mskang@daejoo.co.kr)
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C.B. Shin;
C.B. Shin
4Department of Chemical Engineering, Ajou University, Suwon 442-749, Republic of Korea (E-mail: cbshin@madang.ajou.ac.kr)
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K. Choi;
K. Choi
5National Institute of Environmental Research, Seo-Gu, Incheon 404-170, Republic of Korea (E-mail: nierchoi@me.go.kr)
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J. Yi
J. Yi
6School of Chemical Engineering, Seoul National University, Seoul 151-742, Republic of Korea (E-mail: jyi@snu.ac.kr)
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Water Sci Technol (2004) 49 (4): 177–181.
Citation
C.Y. Yun, J. Moon, K. Chung, M. Kang, C.B. Shin, K. Choi, J. Yi; A novel synthetic method for nanosized crystalline titania for use in the decomposition of dyes. Water Sci Technol 1 February 2004; 49 (4): 177–181. doi: https://doi.org/10.2166/wst.2004.0255
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