Photo Catalytic Oxidation Degradation of Volatile Organic Compound with Nano-TiO2/LDPE Composite Film

Authors: Kowit Suwannahong, Wipada Sanongra, Jittiporn Kruenate, Sarun Phibanchon, Siriuma Jawjit, Wipawee Khamwichit

Abstract:

The photocatalytic activity efficiency of TiO2 for the degradation of Toluene in photoreactor can be enhanced by nano- TiO2/LDPE composite film. Since the amount of TiO2 affected the efficiency of the photocatalytic activity, this work was mainly concentrated on the effort to embed the high amount of TiO2 in the Polyethylene matrix. The developed photocatalyst was characterized by XRD, UV-Vis spectrophotometer and SEM. The SEM images revealed the high homogeneity of the deposition of TiO2 on the polyethylene matrix. The XRD patterns interpreted that TiO2 embedded in the PE matrix exhibited mainly in anatase form. In addition, the photocatalytic results show that the toluene removal efficiencies of 30±5%, 49±4%, 68±5%, 42±6% and 33±5% were obtained when using the catalyst loading at 0%, 10%, 15%, 25% and 50% (wt. cat./wt. film), respectively.

Keywords: Photocatalytic oxidation, Toluene, nano-TiO2/LDPE composite film.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1071105

References:

[1] L. Andronic and A. Duta: "TiO2 thin films for dues photodegradation. Thin solid films", 515, 6294-6297 (2007).
[2] H.P. Chen and H. Jenq: "Kinetics of photocatalytic oxidation of trace organic compounds over titanium dioxide. Environmental International", 24, 871-879 (1998).
[3] J. Chen , D. Okis, W. Rulkens and H. Bruing: "Kinetic processes of photocatalytic mineralization of alcohol on metalized Titanium dioxide". Wat. Res., 33, 1173-1180 (1999).
[4] J.M. Coronado , M. Zorn, I. Tejedor and M. Anderson: "Photocatalytic oxidation of Ketones in the gas phase over TiO2 thin films": A Kinetic study on the influence of water vapor. App. Cat. B: Env., 43, 329-344 (2003).
[5] C. Feiyan , O.S. Pehkoenn and B.M. Ray: "Kinetics and mechanism of UV-photodegradation of chlorinated organic in the gas phase". Wat, Res., 36, 4203-4214 (2002).
[6] H. Habibi and M. Nasr-Esfahani: "Preparation, characterization and photocatalytic activity of a novel nanostructure composite film derived from nanopowder TiO2 and sol-gel process using organic dispersant". Dyes and pigments, 75, 714-722 (2007).
[7] S. Hager , R. Bauer and G. Kudielka: "Photocatalytic oxidation of gaseous chlorinated organic over titanium dioxide" . Chemosphere, 41, 1219-1225 (2000).
[8] L. Hongmin , L. Zhiwei, Y. Xiaojiang and W. Feng: "Kinetic analysis of photocatalytic oxidation of gas-phase formaldehyde over titanium dioxide". Chemospher, 60, 630-635 (2005).
[9] W. Hung , S. Fu., J. Iseng., H. Chu and T. Ko: " Study on photocatalytic degradation of gas dichloromethane using pure and iron ion-doped TiO2 prepared by the sol-gel method". Chemosphere, 66, 2142-2151(2007).
[10] O. Ibhadon , A. Arabatzis, P. Falaras and D. Isoukleris: "The design and photoreaction kinetic modeling of a gas-phase titanium foam pack bed reactor" . Chemical engineering J., 133, 317-323 (2007).
[11] K.W. Jo and K. Park: "Heterogeous photocatalysis of aromatic and chlorinated volatile organic compounds (VOCs) for non-occupational indoor air application". Chemosphere, 57, 555-565 (2004).
[12] F. Jiang, Zhen Z., Z. Xu and S. Zgeng: "Preparation and characterization of SiO2-pillared H2Ti4O9 and its photocatalytic activity for methylene blue degradation". J. of Hazard. Mater., 164, 1250-1256 (2009).
[13] Jacoby, W. A., Blake, D. M., Fennell, J. A., Boulter, J. E., Vargo, L. M., George, M. C. and Dolberg S. K. J. of Air & Waste Management Association, 46, 891-898 (1996).