Browse > Article
http://dx.doi.org/10.5322/JES.2005.14.9.889

Effects of Calcination Temperature on Ti02 Photocatalytic Activities  

Kim Seung-Min (Department of Chemistry, Keimyung University)
Yun Tae-Kwan (Department of Chemistry, Keimyung University)
Hong Dae-Ii (Department of Chemistry, Keimyung University)
Publication Information
Journal of Environmental Science International / v.14, no.9, 2005 , pp. 889-896 More about this Journal
Abstract
The nanosized $TiO_2$ photocatalysts were prepared by the hydrolysis of $TiCl_4$ and calcined at different temperatures. The resulting materials were characterized by TGA, DSC, XRD, and TEM testing techniques. XRD, TEM, and BET measurements indicated that the particle size of $TiO_2$ was increased with rise of calcination temperature and surface area was decreased with rise of it. The prepared $TiO_2$ photocatalysts were used for the photocatalytic degradation of congo red. The effects of calcination temperature, $TiO_2$ loading, the initial concentration of congo red, and usage frequencies were investigated and the rate constants were determined by regressing the experimental data. Calcination is an effective treatment to increase the photo activity of nanosized $TiO_2$ photocatalysts resulting from the improvement of crystallinity. The optimum calcination temperature of the catalyst for the efficient degradation of congo red was found to be $400^{\cric}C$. The rate constant was decreased with increase in the initial concentration of congo red and increased with increase in the $TiO_2$ loading. In the case of $TiO_2$ photocatalysts, the photocatalytic activity wasn't greatly affected by the usage frequencies.
Keywords
TiO2; Photocatalyst; Calcination; Congo red;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Wang, Y. and C. S. Hong, 1999, Effect of hydrogen peroxide, periodate and per sulfate on phtocatalysis of 2-chlorobiphenyl in aqueous $TiO_2$ suspensions, Wat. Res., 33(9), 2031-2036   DOI   ScienceOn
2 Byrne, J. A, B. R. Eggins, N. M. D. Brown, B. McKinney and M. Rouse, 1995, Immobilisation of $TiO_2$ powder for the treatment of polluted water, App, Catal. B: Environmental, 17(1-2), 25-36(1998)   DOI   ScienceOn
3 Herrmann, J. M., H. Tahiri, C. Guillard and P. Pichat, 1999, Photocatalytic degradation of aqueous hydroxy-butandioic acid (malic acid) in contact with powdered and supported titania in water, Catal. Tod., 54(1), 131-141   DOI   ScienceOn
4 Lee, D. K. and I. C. Cho, 2001, Characterization of $TiO_2$ thin film immobilized on glass tube and its application to PCE photocatalytic destruction, Microchem. J., 68(2-3), 215-223   DOI   ScienceOn
5 Zhang, Q., L. Gao and J. Guo, 1999, Preparation and characterization of nanosized $TiO_2$ powers from aqueous $TiCl_4$ solution, Nanostructured Materials, 11(8), 1293-1300   DOI   ScienceOn
6 Bacsa, R. R. and J. Kiwi, 1998, Effect of rutile phase on the photocatalytic properties of nano-crystalline titania during the degradation of p-cournaric acid, App. Catal. B: Environmental, 16(6), 19-29   DOI   ScienceOn
7 Michele, L., V. Andrea and S. Annabella, 2001, Structure and energetics of stoichiometric $TiO_2$ anatase surface, Phys, Rev. B63, 1554091-1554099
8 Camargo, A. C., J. A. Igualada, R. Llusar and J. Andres, 1996, An ab initio perturbed ion study of structural properties of $TiO_2,\;SnO_2,\;and\;GeO_2$ rutile lattices, Chem. Phys., 212, 381-391   DOI   ScienceOn
9 San, N., A. Hatipoglu, G. Kocturk and Z. Cinar, 2001, Prediction of primary intermediates and the photodegradation kinetics of 3-aminophenol in aqueous $TiO_2$ suspensions, J. Photochem. Photobiol. A, 225-232
10 신항식, 임재림, 1995, 고급산화법을 이용한 Trichloroethylene 함유 폐수의 처리(I), 대한환경공학회지, 17(12), 1079-1088
11 전희동, 1994, $TiO_2$ 광촉매를 이용한 고도산화 처리기술, 대한환경공학회지, 16(7), 809-818
12 Yeber, M., J. Rodriguez, J. Freer, J. Baeza, N. Duran and H. D. Mansilla, 1999, Advanced oxidation of a pulp mill bleaching wastewater, Chemosphere, 33, 1679-1688
13 Roberto, A., C. Vincenzo, I. Amedeo and M. Raffaele, 1999, Advanced oxidation processess (AOP) for water purification and recovery, Catal. Tod., 53, 51-59   DOI   ScienceOn
14 Teel, A. L., C. R. Warberg, D. A. Atkinson and R. J. Watts, 2001, Comparison of mineral and soluble iron fenton's catalysts for the treatment of trichloroethylen, Wat. Res., 35(4), 977-984   DOI   ScienceOn
15 Fernandez, A., G. Lassaletta, V. M. Jimenez, A. Justo, A. R. G. Elipe, J. M. Herrmann, H. Tahiri and Y. A. Ichou, 1995, Preparation and characterization of $TiO_2$ photocatalysts supported on various rigid supportsiglass, quartz and stainless stell), Comparative studies of photocatalytic activity in water purification, App, Catal. B: Environmental, 7(1 -2), 49-63   DOI   ScienceOn
16 Arslan, I., I. A. Balcioglu and D. W. Bahnemann, 2000, Advanced chemical oxidation of reactive dyes in simulated dyehouse effluents by ferrioxalate-fenton/UV-A and $TiO_2$/UV-A processes, Dyes and Pigments, 47(3), 207-208   DOI   ScienceOn