Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30123
Photocatalytic and Sonophotocatalytic Degradation of Reactive Red 120 using Dye Sensitized TiO2 under Visible Light

Authors: S.K.Kavitha, P.N.Palanisamy

Abstract:

The accelerated sonophotocatalytic degradation of Reactive Red (RR) 120 dye under visible light using dye sensitized TiO2 activated by ultrasound has been carried out. The effect of sonolysis, photocatalysis and sonophotocatalysis under visible light has been examined to study the influence on the degradation rates by varying the initial substrate concentration, pH and catalyst loading to ascertain the synergistic effect on the degradation techniques. Ultrasonic activation contributes degradation through cavitation leading to the splitting of H2O2 produced by both photocatalysis and sonolysis. This results in the formation of oxidative species, such as singlet oxygen (1O2) and superoxide (O2 -‚óŹ) radicals in the presence of oxygen. The increase in the amount of reactive radical species which induce faster oxidation of the substrate and degradation of intermediates and also the deaggregation of the photocatalyst are responsible for the synergy observed under sonication. A comparative study of photocatalysis and sonophotocatalysis using TiO2, Hombikat UV 100 and ZnO was also carried out.

Keywords: Photocatalysis, Reactive Red 120, Sonophotocatalysis, Sonolysis.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1334391

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2944

References:


[1] S. Matzusawa, J. Tanaka, S. Sato and T. Ibusuki, "Photocatalytic oxidation Photocatalytic oxidation of dibenzothiophenes in acetonitrile using TiO2: effect of hydrogen peroxide and ultrasound irradiation", J. Photochem. Photobiol. A: Chem., Vol.149, 2002, pp.183-189.
[2] Y.Kado, M. Atobe, and T Nonaka,"Ultrasonic effects on electroorganic processes-Part 20 Photocatalytic oxidation of aliphatic alcohols in aqueous suspension of TiO2 powder" Ultrason.Sonochem.,Vol.8,2001,pp.69-74.
[3] E.Selli, " Synergistic effects of Sonolysis combined with photocatalysis in the degradation of an azo dye", Phys. Chem. Phys., Vol.4, 2002. 6123-6128.
[4] I.Z. Shirgaonkar and A. Pandit, "Sonophotochemical destruction of aqueous solution of 2,4,6- trichlorophenol",Ultrason.Sonochem.,Vol.5,1998,pp.53-61.
[5] H. Lachheb, E. Puzenat, A. Houas, M. Ksibi, E. Elaloui, C. Guillard and J.M. Herrmann, "Photocatalytic degradation of various types of dyes (Alizarin S, Crocein Orange G, Methyl Red, Congo Red,Methylene Blue) in water by UV-irradiated titania" Appl.Catal. B:Environ., Vol.39, 2002, pp. 75-90.
[6] H. Destaillats, T.M. Lesko, M. Knowlton, H. Wallace, and M.R.Hoffmann, "Scale up of sonochemical reactors for water treatment",Ind. Eng.Chem. Res.,Vol.40, 2001,pp 3855-3860.
[7] D.B. Voncina and A.M. Marechal, "Reactive dye decolorization using combined ultrasound/H2O2", Dyes Pigments., Vol. 59, 2003, pp.173- 179.
[8] J. Ge and J. Qu, "Ultrasonic irradiation enhanced degradation of azo dye on MnO2", Appl. Catal. B: Environ., Vol. 47, 2003, pp.133-140.
[9] P.R. Gogate and A.B. Pandit, "A review of imperative technologies for wastewater treatment II: hybrid methods"- Adv. Environ. Res., Vol. 8, 2004, pp. 553-597.
[10] L. Davydov, E.P. Reddy, P. France and P.G. Smirniotis, "Sonophotocatalytic destruction of organic contaminants in aqueous systems on TiO2 powders", Appl.Catal.B, Vol. 32,2001, pp. 95-105.
[11] J. Yano, J. Matsuura, H. Ohura and S. Yamasaki, "Complete mineralization of propyzamide in aqueous solution containing TiO2 particles and H2O2 by the simultaneous irradiation of light and ultrasonic waves", Ultrason. Sonochem., Vol.12,2005, pp 197-203.
[12] A. Nakajima, M. Tanaka, Y. Kameshima and K. Okada, "Sonophotocatalytic destruction of 1,4-dioxane in aqueous systems by HF-treated TiO2 powder" J. Photochem. Photobiol. A, Vol.167, 2004, pp. 75-79.
[13] M. Mrowetz, E. Selli and C. Pirola, "Degradation of organic water pollutants through sonophotocatalysis in the presence of TiO2", Ultrason.Sonochem.,Vol. 10, 2003, pp.247-254.
[14] N.L. Stock, J. Peller, K. Vinodgopal and P.V. Kamat, "Combinative sonolysis and photocatalysis for textile dye degradation", Environ. Sci. Technol.,Vol. 34, 2000. pp.1747-1750.
[15] V. Singh, V. Sapehiyia and G.L. Kad, "Ultrasonically activated oxidation of hydroquinones to quinones catalyzed by ceric ammonium nitrate doped on metal exchanged K-10 clay", Synthesis., Vol.2003, 2003, pp. 198-200.
[16] S.K.Kavitha and P.N.Palanisamy, "Photocatalytic degradation of Vat yellow 4 under UV/TiO2", Modern Applied Sci., Vol.4, 2010, pp 190- 142.
[17] U. Bali, "Application of Box-Wilson experimental design method for the photodegradation of textile dyestuff with UV/H2O2 process", Dyes Pigm., Vol. 60, 2004, pp.187-195.
[18] Y. Lu, N. Riyanto and N.K. Weavers, "Sonolysis of synthetic sediment particles: particle characteristics affecting particle dissolution and size reduction", Ultrason. Sonochem., Vol. 9, 2002, pp. 181-188.
[19] N. Shimizu, C. Ogino, M.F. Dadjour and T. Murata, "Sonocatalytic degradation of methylene blue with TiO2 pellets in water-, Ultrason. Sonochem., Vol. 14, 2007, pp. 184-190.
[20] J.Wang, Z. Pan, Z. Zhang, X.Zhang, F.Wen, T. Ma, Y. Jiang, L.Wang, L.Xu and P. Kang, "Sonocatalytic degradation of methyl parathion in the presence of nanometer and ordinary anatase titanium dioxide catalysts and comparison of their sonocatalytic abilities", Ultrason. Sonochem., Vol. 13, 2006, pp. 493-500.
[21] A.M.T. Silva, E. Nouli, A.C. Carmo-Apolinario, N.P. Xekoukoulotakis and D.Mantzavinos, "Sonophotocatalytic/H2O2 degradation of phenolic compounds in agro-industrial effluents", Catal. Today., Vol.124, 2007, pp.232-239.
[22] M. Mrowetz, C. Pirola and E. Selli, "Degradation of organic water pollutants through sonophotocatalysis in the presence of TiO2",Ultrason. Sonochem., Vol.10, 2003,pp. 247-254.
[23] T. Lepoint and F. Mullie, "What exactly is cavitation chemistry?",Ultrason. Sonochem., Vol.1 , 1994, pp S13-S22.
[24] J. Peral, M. Trillas and X. Domenech, "Heterogenous photochemistry:An easy experiment" , J. Chem. Educ., Vol. 72, 1995, 565-566.
[25] M.A. Margulis and I.M. Margulis, "Theory of local electrification of cavitation bubbles: new approaches", Ultrason. Sonochem., Vol. 6, 1999, pp. 15-20.
[26] K.S. Suslick, S.J. Doktycz and E.V. Flint, "On the origin of sonoluminescence and sonochemistry", Ultrasonics, Vol. 28, 1990, pp. 280-290.
[27] W.Z.Tang, Z.Zhang, H.An, M.O.Quintana and D.F.Torres,"TiO2/UV photodegradationof azo dyes in aqueous solutions", Environ.Technol. Vol.18, 1997, pp.1-12.
[28] Poulios and I. Tsachpinis,"Photodegradation of the textile dye Reactive Black 5 in the presence of semiconducting oxides",J.Chem. Technol.Biotechnol.,Vol. 71,1999, pp 349-357.