Comparison Study of Photocatalytic Activity of Titanium-Rich Materials Derived from Natural Minerals Ores Using Acidic Leaching

Abstract:

Over past decades, titanium dioxide-based materials have been recognized as effectively practical photocatalysts for purification of toxicity waste. However, pure TiO2 photocatalyst is highly active under ultraviolet illumination. In this work, the effort has been focused on the synthesis of titanium-rich materials starting from minerals ores ilmenite ores and leucoxene ores by ball-milling process in combined with hydrochloric acid leaching method with optimized conditions. Crystallinity and morphologies of as-prepared samples were characterized by X-rays diffraction technique and scanning electron microscope. The photocatalytic activities of both derived-materials were studied and compared by degradation of Rhodamine B organic dye as organic toxicity compound under ultraviolet light and visible light. The results illustrate that the leucoxene-derived sample exhibits superior catalytic performance to the sample derived from ilmenite ores due to the greater Ti-content of the starting leucoxene ores.

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 813-818
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.813
• Online since: August 2017
• Authors: Thanaphon Kansaard*, Weerachon Phoohinkong, Wanichaya Mekprasart, Samanya Sanguanpak, Anucha Wannagon, Wisanu Pecharapa
• Keywords: Acid Leaching, Photocatalyst, Rhodamine B, Titanium-Rich Materials

References

[1] El-Hazek, N., Lasheen, T.A., El-Sheikh, R. and. Zaki, S. A. Hydrometallurgical criteria for TiO2 Leaching from Rosetta ilmenite by hydrochloric acid. Hydrometallurgy. 2007; 87(1-2): 45-50.

DOI: 10.1016/j.hydromet.2007.01.003

[2] H. Yaghoubi, N. Taghavinia, E.K. Alamdari. Self cleaning TiO2 coating on polycarbonate: Surface treatment, photocatalytic and nanomechanical properties. Surf. Coat. Tech., 2010; 14: 1562-1568.

DOI: 10.1016/j.surfcoat.2009.09.085

[3] P. Garcia-Munoz, G. Pliego, J.A. Zazo, A. Bahamonde, J.A. Casas. Ilmenite (FeTiO3) as low cost catalyst for advance oxidation process. JECE, 2016; 4: 542-548.

DOI: 10.1016/j.jece.2015.11.037

[4] Das, G.K., Pranolo, Y., Zhu, Z. and Cheng, C.Y. Leaching of ilmenite ores by acidic chloride solution. Hydrometallurgy, 2013; 133: 94-99.

DOI: 10.1016/j.hydromet.2012.12.006

[5] S. Samal, D.W. Park, Nano-particle synthesis of titanium oxide from ilmenite in a thermal plasma reactor, Chem. Eng. Res. Des., 2012; 90: 548-554.

DOI: 10.1016/j.cherd.2011.08.011

[6] A.A. Baba, F.A. Adekola, O.A. Arodora, L. Ibrahim, R.B. Bale, M.K. Ghosh, A.R. Sheik, Simultaneous recovery of total iron and titanium from ilmenite ore by hydrometallurgy processing, Metall. Mater. Eng., 2012; 18: 67-78.

[7] Thomas S. Mackey: Acid Leaching of Ilmenite Into Synthetic Rutile, Industrial & Engineering Chemistry Product Research and Development, 13; (1974).

[8] G.K. Das, Y. Pranolo, Z. Zhu, C.Y. Cheng, Leaching of ilmenite ores by acidic chloride solutions, Hydrometallurgy, 2013; 133: 94-99.

DOI: 10.1016/j.hydromet.2012.12.006

[9] M. Pelaeza, N.T. Nolanb, S.C. Pillai b, M.K. Seeryc, P. Falarasd, A.G. Kontosd, P.S.M. Dunlope, J.W.J. Hamiltone, J.A. Byrnee, K. O'Sheaf, M.H. Entezarig, D.D. Dionysioua, A review on the visible light active titanium dioxide photocatalysts for environmental applications, Applied Catalysis B: Environmental, 2012; 125: 331– 349.

DOI: 10.1016/j.apcatb.2012.05.036

[10] Z. Tao, G. Hou, N. Xu, Determination of The maximum Ca content in La2-xCaxZr2O7 ± d by XRD intensity ratio, Ceramic International, 2014; 40: 3823-3826.

DOI: 10.1016/j.ceramint.2013.08.046

[11] J. Zhang, Q. Zhu, Z. Xie, H. Li, Influence of redox pretreatment on the pulverization of panzhihua ilmenite during hydrochloric acid leaching, 2015; 157: 226-233.

DOI: 10.1016/j.hydromet.2015.08.019

[12] S. Wahyuningsih, E. Pramono,F. Firdiyono, E. Sulistiyono, S.B. Rahardjo, H. Hidayattullah, F.A. Anatolia, Decomposition of Ilmenite in Hydrochloric Acid to Obtain High Grade Titanium Dioxide, Asian Journal of Chemistry, 2013; 25(12) : 6791-6794.

DOI: 10.14233/ajchem.2013.14692