Cement Bonded Sol-Gel TiO2 Powder Photocatalysis for Phenol Removal

Nor Hafizah; Iis Sopyan

doi:10.4028/www.scientific.net/AMM.776.271

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 776Cement Bonded Sol-Gel TiO2 Powder Photocatalysis...

Cement Bonded Sol-Gel TiO₂ Powder Photocatalysis for Phenol Removal

Abstract:

Photocatalysis has been proven effective in controlling various environmental problems originated by pollutions both in liquid and gaseous phases. Titanium dioxide (TiO₂) is well known the most practical photocatalyst as it has high photocatalytic efficiency, low band gap energy, and no toxicity. Various chemical methods have been tried to produce TiO₂ photocatalyst powder with high activity. In this study, sol-gel method has been employed to produce nanosized TiO₂ photocatalyst particles and its physical properties and photocatalytic activity in phenol degradation test were compared with the commercial TiO₂ powder, Degussa P25. The synthesis process was carried out through hydrolysis of titanium tetraisopropoxide (TPT) and methanol where the molar ratio of water to TPT was monitored to control the hydrolysis rate. From X-Ray Diffraction (XRD) analysis, the sol-gel TiO₂ powder obtained was fully in anatase structure with high crystallinity. Scanning Electron Microscope (SEM) measurement showed that the powder was in nanoto sub-micron size, spherical in shape, and tightly agglomerated. Thermal analysis confirmed that sol-gel derived amorphous TiO₂ powder transformed to anatase phase after 400°C calcination. The test on photocatalytic performance conducted using aqueous solution of phenol as the representative of water pollutant examined in this study showed that the sol-gel TiO₂ powder is more efficient in degrading phenol compared to one of the most active photocatalysts commercially available, Degussa P25.

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Periodical:

Applied Mechanics and Materials (Volume 776)

Pages:

271-276

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.776.271

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Online since:

July 2015

Authors:

Nor Hafizah, Iis Sopyan*

Keywords:

Cement, Degradation, Phenol, Photocatalyst, Sol-Gel Method, Titanium Dioxide

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* - Corresponding Author

References

[1] I. Sopyan, S. Murasawa, K. Hashimoto, and A. Fujishima, Highly Efficient TiO2 Film Photocatalyst Degradation of Gaseous Acetaldehyde, Chemistry Letter. 23 (1994) 723-726.

DOI: 10.1246/cl.1994.723

Google Scholar

[2] O. Zahraa, L. Sauvanaud, G. Hamard, and M. Bouchy, Kinetics of Atrazine Degradation by Photocatalytic Process in Aqueous Solution, International Journal of Photoenergy. 2003 (2003) 87-92.

DOI: 10.1155/s1110662x03000187

Google Scholar

[3] I. Sopyan, Kinetic Analysis on Photocatalytic Degradation of Gaseous Acetaldehyde, Ammonia and Hydrogen Sulfide on Nanosized Porous TiO2 Films, Science and Technology of Advanced Materials. 8 (2007) 33-39.

DOI: 10.1016/j.stam.2006.10.004

Google Scholar

[4] I. R. Bellobono, R. Stanesu, C. Costache, C. Canevali, F. Morazzoni, R. Scotti, R. Bianchi, E. S. Mangone, G. de Martini, and P.M. Tozzi, Laboratory- Scale Photomineralization of n-Alkanes in Gaseous Phase by Photocatalytic Membranes Immobilizing Titanium Dioxide, International Journal of Photoenergy. 2006 (2006).

DOI: 10.1155/ijp/2006/73167

Google Scholar

[5] K.M. Schindler and M. Kunst, Charge Carrier Dynamics in TiO2 Powder, Journal of Physical Chemistry. 9 4 (1990) 8222-8226.

Google Scholar

[6] Y. Bessekhouad, D. Robert, and J. V. Weber, Preparation of TiO2 Nanoparticles by Sol-Gel Method", International Journal of Photoenergy. 2003 (2003) 153-158.

DOI: 10.1155/s1110662x03000278

Google Scholar

[7] N.A. Laoufi, D. Tassalit, F. Bentahar, The degradation of phenol in water solution by TiO2 photocatalysis in a helical reactor, Global NEST Journal, 10 (2008) 404-418.

DOI: 10.30955/gnj.000525

Google Scholar