Sol-Gel Preparation of Nanoscale TiO2/SiO2 Composite for Eliminating of Con Red Azo Dye

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DOI: 10.4236/msa.2011.25064   PDF   HTML     7,853 Downloads   14,841 Views   Citations

Abstract

A new anatase/SiO2 nanocomposite was synthesized by sol-gel method at room temperature using titanium tetrachloride and tetraethylorthosilicate as raw materials. Characterization of the product was carried out by means of X-ray diffraction (XRD), X-ray fluorescence spectroscopy (XRF), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) specific surface areas, Thermogravimetry analysis (TGA), Fourier transform infrared (FT-IR), and UV-vis absorption spectroscopy. Thermal phase transformation studies of composite were carried out up to 1100°C which showed the establishment of anatase TiO2 phase. The presence of some tetrahedral coordination of TiO2 species in SiO2 matrix was confirmed by UV-Vis study. The produced TiO2/SiO2 nanocomposite has good photocatalytic properties due to its anatase phase, existence of tetrahedral coordination of TiO2 in the SiO2 matrix and very large surface area. Furthermore, the synthesized anatase/SiO2 shows significant adsorption ability towards Congo Red (CR) azo dye in comparison with the pure commercial TiO2 which is known as Degussa, P25.

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A. Nilchi, S. Janitabar-Darzi and S. Rasouli-Garmarodi, "Sol-Gel Preparation of Nanoscale TiO2/SiO2 Composite for Eliminating of Con Red Azo Dye," Materials Sciences and Applications, Vol. 2 No. 5, 2011, pp. 476-480. doi: 10.4236/msa.2011.25064.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] C. M. Visinescu, R. Sanjines, F. Levy, V. Marcuc and V. I. Parvulescu, “Tantalum Doped Titania Photocatalysts: Preparation by dc Reactive Sputtering and Catalytic Behavior,” Journal of Photochemistry and Photobiology A: Chemistry, Vol. 174, No. 2, August 2005, pp. 106-110. doi:10.1016/j.jphotochem.2005.03.017
[2] M. H. Habibi, S. Tangestaninejad and B. Yadollahi, “Photocatalytic Mineralization of Mercaptans as Environmental Pollutants in Aquatic System Using TiO2 Suspension,” Applied Catalysis. B: Environment, Vol. 33, No. 1, September 2001, pp. 57-61. doi:10.1016/S0926-3373(01)00158-8
[3] D. G. Shchukin and D. V. Sviridov, “Photocatalytic Processes in Spatially Confined Micro- and Nanoreactors,” Journal of Photochemistry and Photobiology A: Chemistry Review, Vol. 7, 2006, pp. 23-39.
[4] R. Zhang, L. Gao and Q. Zhang, “Photodegradation of Surfactants on the Nanosized TiO2 Prepared by Hydrolysis of the Alkoxide Titanium,” Chemosphere, Vol. 54, No. 3, January 2004, pp. 405-411. doi:10.1016/S0045-6535(03)00588-5
[5] K. Patterson, B. W. Lykins, J. C. Ireland, S. D. Richardson, A. D. Thruston and T. W. Collett, “Identification of TiO2/UV Disinfection Byproducts in Drinking Water,” Environmental Science and Technology, Vol. 30, No. 11, 1996, pp. 3327-3334. doi:10.1021/es960142m
[6] P. S. Awati, S. V. Awate, P. P. Shah and V. Ramaswamy, “Photocatalytic Decomposition of Methylene Blue Using Nanocrystalline Anatase Titania Prepared by Ultrasonic Technique,” Catalysis. Communications, Vol. 4, No. 8, August 2003, pp. 393-400. doi:10.1016/S1566-7367(03)00092-X
[7] D. Beydoun, R. Amal, G. Low and S. McEvoy, “Role of Nanoparticles in Photocatalysis,” Journal of Nanoparticle Research, Vol. 1, 1999, pp. 439-458. doi:10.1023/A:1010044830871
[8] M. R. Prairie, L. R. Evans, B. M. Stange and S. L. Marlinez, “An Investigation of TiO2 Photocatalysis for the Treatment of Water Contaminated with Metals and Organic Chemicals,” Environmental Science and Technology, Vol. 9, 1993, p. 27.
[9] P. Chenga, C. Denga, M. Gub and A. X. Dai, “Effect of Urea on the Photoactivity of Titania Powder Prepared by Sol-Gel Method,” Materials Chemistry and Physics, Vol. 107, No. 1, January 2008, pp. 77-81. doi:10.1016/j.matchemphys.2007.06.051
[10] G. Calleja, D. P. Serrano, R. Sanz and P. Pizarro, “Mesostructured SiO2-Doped TiO2 with Enhanced Thermal Stability Prepared by a Soft-Templating Sol-Gel Route,” Microporous and Mesopororous Materials, Vol. 111, 2008, p. 429.
[11] C. Garzella, E. Comini, E. Bontempil, L. E. Deperol, C. Frigeri and G. Sberveglieri, “Nanostructured TiO2 and W: TiO2 Thin Films by a Novel Sol-Gel Processing for Alcohol Sensing Devices,” Materials Research Society Symposium Proceedings, Vol. 638, 2001, p. 111.
[12] Z. Wang, U. Helmersson and P. Kall, “Optical Properties of Anatase TiO2 Thin Films Prepared by Aqueous Sol-Gel Process at Low Temperature.” Thin Solid Films, Vol. 405, No. 1-2, February 2002, pp. 50-54. doi:10.1016/S0040-6090(01)01767-9
[13] T. Ivanova, A. Harizanova and M. Surtchev, “Formation and Investigation of Sol-Gel TiO2-V2O5 System,” Materials Letters, Vol. 55, 2002, pp. 327-333.
[14] S. Dohshi, M. Takeuchi and M. Anpo, “Effect of the Local Structure of Ti-Oxide Species on the Photocatalytic Reactivity and Photo-Induced Super-Hydrophilic Properties of Ti/Si and Ti/B Binary Oxide Thin Films,” Catalysis Today, Vol. 85, No. 2-4, October 2003, pp. 199-205. doi:10.1016/S0920-5861(03)00387-0
[15] R. R. Gon?alves, Y. Messaddeq, M. Atik and S. J. L. Ribeiro, “Optical Properties of ZrO2, SiO2 and TiO2-SiO2 Xero gels and Coatings Doped with Eu3+ and Eu2+,” Journal of Material Research, Vol. 2, No. 1, January 1999, pp. 11-15.
[16] T. Nishide, M. Sato and H. Hara, “Crystal Structure and Optical Property of TiO2 Gels and Films Prepared from Ti-Edta Complexes as Titania Precursors,” Journal of Material Science, Vol. 35, 2000, pp. 465-469.
[17] S. Cabrera, J. El Haskouri, A. Beltra’n-Porter, D. Beltra’n-Porter, M. D. Marcos and P. Amoro’s, “Enhanced Surface Area in Thermally Stable Pure Mesoporous TiO2,” Solid State Science, Vol. 2, No. 5, September 2000, pp. 513-518. doi:10.1016/S1293-2558(00)00057-1
[18] L. Zhou, S. Yan, B. Tian, J. Zhang and M. Anpo, “Preparation of TiO2-SiO2 Film with High Photocatalytic Activity on PET Substrate,” Materials Letters, Vol. 60, No. 3, February 2006, pp. 396-402. doi:10.1016/j.matlet.2005.08.065
[19] A. L. Patterson, “The Sherrer Formula for X-Ray Particle Size Determination,” Physical Review, Vol. 56, 1939, pp. 978-983. doi:10.1103/PhysRev.56.978
[20] Y. Gao, Y. Masuda, Z. Peng, T. Yonezawa and K. Koumoto, “Light-Excited Super Hydrophilicity of Amorphous TiO2 Thin Films Deposited in an Aqueous Peroxotitanate Solution,” Journal of Material Chemistry, Vol. 13, 2003, pp. 608-613. doi:10.1039/b208105a
[21] G. Calleja, D. P. Serrano, R. Sanz, P. Pizarro and A. Garc?′a, “Study on the Synthesis of High-Surface-Area Mesoporous TiO2 in the Presence of Nonionic Surfactants,” Indian Engineering Chemical Research, Vol. 43, No. 10, 2004, pp. 2485-2492. doi:10.1021/ie030646a
[22] S. J. Kalita, S. Qiu and S. Verma, “A Quantitative Study of the Calcination and Sintering of Nanocrystalline Titanium Dioxide and Its Flexural Strength Properties,” Materials Chemistry and Physics, Vol. 109, No. 2-3, June 2008, pp. 392-398. doi:10.1016/j.matchemphys.2007.12.031
[23] S. J. Kim, S. D. Park, C. K. Rhee, W. W. Kim and S. Park, “Photocatalytic Characteristics of Homogeneously precipitated TiO2 Nano-Sized Powders,” Scripta Materialia, Vo. 44, 2001, pp. 1229-1233. doi:10.1016/S1359-6462(01)00854-5
[24] J. Aguado, M. Grieken, J. Lopez-Munoz and J. Marugan, “A Comprehensive Study of the Synthesis, Characterization and Activity of TiO2 and Mixed TiO2/SiO2,” .Applied Catalysis A: General, Vol. 312, September 2006, pp. 202-210. doi:10.1016/j.apcata.2006.07.003
[25] K. Kabra, R. Chaudhary and R. L. Sawhney, “Treatment of Hazardous Organic and Inorganic Compounds through Aqueous-Phase,” Photocatalysis: A Review Indian Engineering Chemical Research, Vol. 43, 2004, pp. 7683-7696.
[26] M. Machida, K. Norimoto, T. Watanabe, K. Hashimoto and A. Fujishima, “The Effect of SiO2 Addition in Super-Hydophylic Property of TiO2 Photocatalyst,” Journal of Material Science, Vol. 34, 1999, pp. 2569-2574. doi:10.1023/A:1004644514653
[27] M. N. Kamalasanan and S. Chandra, “Sol-Gel Synthesis of ZnO Thin Films,” Thin Solid Films, Vol. 288, No. 1-2, November 1996, pp. 112-118. doi:10.1016/S0040-6090(96)08864-5
[28] P. Wang, S. M. Zakeeruddin, I. Exnarb and M Gr?tzel, “High Efficiency Dye-Sensitized Nanocrystalline Solar cells Based on Ionic Liquid Polymer Gel Electrolyte,” Chemical Communications, Vol. 111, 2002, pp. 2972-2973. doi:10.1039/b209322g
[29] M. Zribi, M. Kanzari and B. Rezig, “Structural, Morphological and Optical Properties of Thermal Annealed TiO Thin Films,” Thin Solid Films, Vol. 516, 2008, pp. 1476-1482. doi:10.1016/j.tsf.2007.07.195
[30] H. Yamashita, Y. Ichihashi, M. Harada, M. Stewart, A. Fox and M. Anpo, “Photocatalytic Degradation of 1-Octanol on Anchored Titanium Oxide and on TiO2 Powder Catalysts,” Journal of Catalysis, Vol. 158, 1996, pp. 97-103. doi:10.1006/jcat.1996.0010

  
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