Kinetic Study of Congo-Red Photo-Catalytic Degradation in Aqueous Media Using Zinc Oxide as Photo Catalyst Under Led Light
DOI:
https://doi.org/10.25271/sjuoz.2021.9.1.777Keywords:
Photo-catalytic degradation, kinetic of degradation, congo-red, activation energyAbstract
The kinetic of photo catalytic degradation of Congo red dye using semiconductor in aqueous solution of ZnO has been studied. All photochemical experiments have been carried out in quartz photo cell 25ml capacity and the solvent used for all experiment was distilled water (D. W). The influence of temperature has been investigated as well. Spectrophotometric method was utilized for this work. Degradation kinetic has been done for absorption peak of Congo red at 497 nm and 344 nm. Different method was applied for this purpose, and the results show that the degradation of Congo red was first order at 497nm and zero order at 344 nm. The degradation of CR dye were increased by increasing temperature from 20 oC to 40 oC and then degreased at 50 oC and this is due to desorption that occur at the semiconductor surface while; in case of 10 oC the rate constant was higher than 20 oC. However, when changing the concentration the rate constant dose not changed regularly, this perhaps due to the fact that it does not follow the same order throughout the degradation process, and it does not obey Arrhenius law of activation energy.
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[3] Karlaganis G, Marioni R , Sieber I and Weber A 2001 The elaboration of the ‘Stockholm convention’on persistent organic pollutants (POPs): a negotiation process fraught with obstacles and opportunities Environmental Science pollution resources pp. 216–21.
[4] Rozman K K and Doull J 2000 Dose and time as variables of toxicity J. Toxic.145 pp. 169–78
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[7] States, U.C. for E.R. information, 1998. & EPA Handbook Advanced Photochemical Oxidation Processes.
[8] Donald N.Pavia, Gary M.Lampman, G.S.K., 2001. Introduction_to_Spectroscopy. , p.366.
[9] Skoog, D.A., Holler, F.J. & R.Crouch, S., 2007. Principles of Instrumental Analysis sexth edit., David Harris.
[10] James W. Robinson, Eileen M. Skelly Frame, G.M.F.I., 2005. UNDERGRADUATE INSTRUMENTAL ANALYSIS Sixth Edit., Marcel Dekker. Available at: http://www.dekker.com.
[11] Antonopoulou M, Evgenidou E, Lambropoulou D and Konstantinou I 2014 A review on advanced oxidation processes for the removal of taste and odor compounds from aqueous media, J. water res. pp. 215-34.
[12] Elaziouti , N. Laouedj and Bekka Ahmed. ZnO-Assisted Photocatalytic Degradation of Congo Red and Benzopurpurine 4B in Aqueous Solution. Chemical Engineering & Process Technology, 2011, vol. 2. Issue, 2.
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[15] Keshavarz, H. R. Pouretedal and M. H. Study of Congo red photodegradation kinetic catalyzed by Zn1-XCuXS and Zn1-XNiXS nanoparticles. 27, Shahin-shahr : International Journal of the Physical Sciences, 2011, Vol. 6. 10.5897/IJPS09.251.
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[17] Robson MW. An Introduction to Chemical Kinetics. John Wiley & Sons Ltd; 2004. Available at: www.wileyeurope.com or www.wiley.com.
[18] Santosh K. Upadhyay. Chemical Kinetics and Reaction Dynamics. New Delhi: Anamaya Publishers; 2006.
[19] Shinwar A. Idrees, S. A. Naman, Anees Shorachi photo-degradation of Trifluralin in aqeous suspension solution of acetonitril water. Msc. Thises 2015 UoZ.
[20] S. A. Naman, Lazgin A. Jamil FMJA-S. Photocatalytic Degradation Of Herbicide (Propanil) Using Semiconductor (TiO2, ZnO) In Aqueous Solution And Its Application In Local Water In Dohuk. 2006.
[21] Paula, Atkin's and Julio D 2006 physical chemistry (oxford : Oxford University Press)
[22] Sh A Idrees , S A Naman, A Shorachi; Kinetic and thermodynamic study of Trifluralin photodegradation by ultra violet light; 2018, doi:10.1088/1757-899X/454/1/012045
[23] Mohammed M. Molla-Babaker, Shinwar A. Idrees; Degradation of Congo Red Dye using Homogeneous Photo Fenton Catalyst Coupled with Oxygen Kinetics and Statistical Analysis, 2020; 6(1): 1-9; doi:10.9734/AJACR/2020/v6i130147.
[24] Haydar A., Shinwar A. Idrees, Sabir A., Reving A.; electrochemical degradation of alizarin black dye in aqueous medium using fe/al electrode, 2019; Vol. 7, No. 2, pp. 57–60; https://doi.org/10.25271/sjuoz.2019.7.2.601.
[25] Wardle and Brian 2009 Principles and Applications of Photochemistry. (Manchester, UK : A John Wiley & Sons, Ltd., Publication)
[26] S Khezrianjoo HR. Langmuir-Hinshelwood Kinetic Expression for the Photocatalytic Degradation of Metanil Yellow Aqueous Solutions by ZnO Catalyst. Chem Sci J. 2012;85:1–8. Available at: http://astonjournals.com/csj
[27] Kumar, K Vasanth, K. Porkodi FR. Langmuir – Hinshelwood kinetics – A theoretical study. Catal Commun. 2008;9:82–84. doi:10.1016/j.catcom.2007.05.019
[28] Naman S A , Lazgin A Jamil and sheren othman I 2010 photocatalytic degradation and mineralization of paraquate, carbendazim, Acetamiprid as pesticides.Phd. desertation (zakho : university of zakho)
[29] Haydar A., Shinwar A., Reving A, Abraheem A., Sherwan M., Idrees S., Photo-catalytic degradation of Toluidine Blue Dye in aqueous medium Under Fluorescent Light.J.IEEE.(2018),
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Published
2021-03-30
How to Cite
Idrees, S. A., Salih, R. N., Bashir, K., & Hamasaeed, A. A. (2021). Kinetic Study of Congo-Red Photo-Catalytic Degradation in Aqueous Media Using Zinc Oxide as Photo Catalyst Under Led Light. Science Journal of University of Zakho, 9(1), 20–24. https://doi.org/10.25271/sjuoz.2021.9.1.777
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