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International Journal of Technology Enhancements and Emerging Engineering Research (ISSN 2347-4289)
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IJTEEE >> Volume 2 - Issue 10, October 2014 Edition



International Journal of Technology Enhancements and Emerging Engineering Research  
International Journal of Technology Enhancements and Emerging Engineering Research

Website: http://www.ijteee.org

ISSN 2347-4289



Comparative Study On The Photocatalytic Degradation Of Malachite Green Using Zinc Oxide Under Different Sources Of Radiation

[Full Text]

 

AUTHOR(S)

Tesfaye Teka, Aynalem Reda

 

KEYWORDS

Keywords: Advanced oxidation processes, irradiation source, Photocatalysis, Zinc Oxide

 

ABSTRACT

Abstract: Commercial ZnO was used as a catalyst for the degradation of malachite green in aqueous solution. The catalyst was tested under different light sources (dark, visible lamp and solar radiation). The photocatalytic degradation efficiency of the catalyst for the adsorbed malachite green was found to be higher effective (88%) under solar irradiation than visible irradiation (80%) considering both at the same time of irradiation. The photocatalytic degradation efficiency of the catalyst for the adsorbed malachite green in dark was found to be least effective. This implies that ZnO can use for degradation of organic pollutants simply in the presence of sun light.

 

REFERENCES

[1] M.,Anpo, 2004. Applications of titanium oxide photocatalysts and unique second- generation TiO2 photocatalysts able to operate under visible light irradiation for the reduction of environmental toxins on a global scale, studies in surface science and catalysis,130 : 157–166,

[2] M., Hoffmann, R., and S.T.Martin,1995. Environmental applications of semiconductor photocatalysis. Journal Chemical Reviews 95(1): 69-96

[3] R. Asahi, , T. Morikawa, T. Ohwaki, K. Aoki, and Y. Taga, 2001. Visible-light photocatalysis in nitrogen-doped titanium oxides, Science, 293: 269–271.

[4] S. Funda., E.Sema, and A. Meltem., 2006, Photocatalytic performance of pure anatase nanocrystallite TiO2 synthesized under low temperature hydrothermal conditions, Materials ResearchBulletin,. 41 (12): 2276–2285.

[5] Bahajady, M.A, N. Modrishahla and R. Hamzavi,2006.Kinetic study on photocatalytic degradation of C.I acid yellow by Zno photocatalyst .j.hazared. mater.B. 133:226-232

[6] Fox, M.A.and M.T.Dulay,1993, Heterogeneous photocatalysis. Chemical Reviews 93:341-357

[7] Burda .C., Y. Lou, X. Chen, A. C. S. Samia, J. Stout, and J. L. Gole, 2003, Enhanced nitrogen dopingin TiO2 nanoparticles, Nano Letters, 3 (8): 1049–1051.

[8] Radwan A. Al-Rasheed 2005. Water treatment by heterogeneous photocatalysis an overview1Saline Water Desalination Research Institute Saline Water Conversion Corporation Al-Jubail 31951, Saudi Arabia Jeddah,

[9] Keith L. H .and W. A. Telliard, 1979. Priority pollutants. I. A perspective view,”Environmental Science and Technology, 13(4): 416–423,

[10] Carp.O, Huisman.C, and Reller, 2004. Photoinduced reactivity of titanium dioxide; progress in solid state chemistry. J.hazardeous materials. 32:171-177

[11] Gaya, U.I. and A.H. Abdullah, 2008. Heterogeneous photocatalytic degradation of organic contaminants over titanium dioxide: a review of fundamentals, progress and problems, J. Photochem. Photobiol. C: Photochem. Rev. 9: 1–12

[12] Hsien Yu-Hsiang, Chi-Fu Chang, Yu- Huang Chen, and Soofin Cheng, 2001. Photodegradation of aromatic pollutants in water over TiO2 supported on molecular sieves. Applied Catalysis B: Environmental. 31: 241–249.

[13] Obare S.O. and Meyer G.J., 2004. Nano- structured materials for environmental remediation of organic contaminants in water. J. Environ. Sci. Health A. 39: 2549–2582.

[14] Epling G.A. and Lin C., 2002, Photo assisted bleaching of dyes utilizing TiO2 and visible light. Chemosphere 46:561-570)