The Photocatalytic, Thermal Degradation Kinetics and Lifetime Prediction of Some Commercial Reactive Dyes

Document Type: Research Article

Authors

Chemistry Department, Faculty of Sciences, Sana'a University, Sana'a, YEMAN

Abstract

The photocatalytic degradation of the commercial reactive Black5 (RB5), Blue19 (RB19), Green19 (RG19), Red120 (RR120), and Yellow81 (RY81) in aqueous solution and sunlight were examined in the presence of Fe2O3 and the mixture Fe2O3/H2O2 as catalysts. The results showed that the photocatalytic degradation followed first-order kinetics with faster degradation in case of the mixture Fe2O3/H2O2 than that in Fe2O3 catalyst. The photocatalytic degradation percentages with the exposure time intervals obtained for each dye were extrapolated to determine the time at the complete degradation (100% degradation). The thermal decomposition behavior of these dyes was investigated by using non-isothermal thermogravimetric analysis (TG, DTG, and DTA), at 10 °C/min heating rate and under nitrogen. The Coats-Redfern integral method was used for the five reactive dyes in order to evaluate the kinetic parameters for each step in the sequential decomposition TGA curves. The initial molecular structure destruction of these five reactive dyes occurred at their second steps. The kinetic parameters of this structural destruction step at multiple heating rates (10, 15, 20 and 30 °C/min) were only worked out for three selected dyes (RB5, RB19, and RR120) using the Flynn-Wall-Ozawa equation and compared with that of Kissinger's equation. Based on the data obtained by the Coats-Redfern method, the thermodynamic parameters (∆G*, ∆H* and ∆S*) for these second steps were determined. Finally, the kinetic data extracted from the TGA curves were also used as appropriate to predicate the lifetime of the five dyes at 25, 50, 100 and 200 °C.

Keywords

Main Subjects


[1] Cisneros R.L., Espinoza A.G., Litter M.I., Photo Degradation of an Azo Dye of the Textile Industry, Chemosphere, 48: 393-399 (2002).

[2] Lee Y.H., Pavlostathis S.G., Decolorization and Toxicity of Reactive Anthraquinone Textile Dyes under Methanogenic Conditions, Water Res., 38 (7): 1838-1852 (2004).

[3] Zollinger H., "Color Chemistry: Syntheses, Properties and Applications of Organic Dyes and Pigments", VCH Publishers, Weinheim, German (1991).

[4] Lewis D.M., Coloration for the Next Century, Review of Progress in Coloration and Related Topics, 29: 23-28 (1999).

[5] Muruganadham M., Sobana N., Swaminthan M., Solar Assisted Photocatalytic and Photochemical Degradation of Reactive Black 5, J. Hazardous Materials, B137: 1371-1376 (2006).

[6] Marechal A.M.L., Slokar Y.M., Taufer T., Decoloration of Chlorotriazine Reactive Azo Dyes with H2O2/UV, Dyes Pigments, 33: 281–298 (1997).

[7] Georgiou D., Melidis P., Aivasidis A., Gimouhopoulos K., Degradation of Azo-Reactive Dyes by Ultraviolet Radiation in the Presence of Hydrogen Peroxide, Dyes Pigments, 52:69–78 (2002).

[8] Neamtu M., Siminiceanu I., Yediler A, Kettrup A., Kinetics of Decolorization and Mineralization of Reactive Azo Dyes in Aqueous Solution by the UV/H2O2 Oxidation, Dyes Pigments, 53: 93–99 (2002).

[9] Cho II-H, Kim L-H, Zoh K-D, Park J-H, Kim H-Y., Solar Photocatalytic Degradation of Groundwater Contaminated with Petroleum Hydrocarbons, Environmental Progress, 25 (2): 99-109 (2006).

[10] Jahagirdar A.A., Zulfiqar Ahmed M.N., Donappa N., Nagabhushana H., Nagabhushana B.M., Photocatalytic Degradation of Rhodamine B Using Nanocrystalline α-Fe2O3, J. Mater. Environ. Sci. 5 (5): 1426-1433 (2014).

[11] Cano-Guzmán C.F.,. Pérez-Orozco J.P, Hernández-Pérez I., L. González-Reyes I., Garibay-Febles V.,  Suárez-Parra R., Kinetic Study for Reactive Red 84 Photo Degradation Using Iron (III) Oxide Nanoparticles in Annular Reactor, Textile Sci Eng,4 (2): 155 (2014).

[12 Neamtu M., Yediler A., Siminiceanu I., Kettrup A., Oxidation of Commercial Reactive Azo Dye Aqueous Solutions by the Photo-Fenton and Fenton-Like Processes, J. Photochem. Photobiol. A: Chemistry, 161: 87-93 (2003).

[13] Masaund, M., Khalil, E., El-Sayed El-Shereafy, E., El-Enein S., Thermal and Electrical Behaviour of Nickel(II) and Copper(II) Complexes of 4-Acetylamino-2-Hydroxy-5-Methylazobenzene, J. Thermal Anal., 36: 1033-1038 (1990).

[14] Egli R., Color Chemistry: The Design and Synthesis of Organic Dyes and Pigments, Edited by. A. Peters, H. Freeman, Elsevier Applied science, London (1991).

[15] Emam M., Kenawy I., Hafez M., Study of the Thermal Decomposition of Some New Cyanine Dispersed Dyes, J. Therm. Anal. Cal., 63: 75-83 (2001).

[16] Emam M., Thermal Stability of Some Textile Dyes, J. Therm. Anal. Cal., 66: 583-591 (2001).

[17] Kocaokutgen H.H., Heren Z., Thermal Behaviour of Some Azo Dyes Containing Sterically Hindered and Water-Soluble Groups, Turk J. Chem., 22: 403 (1998).

[18] Kocaokutgen H., Gümrükçüoğlu I.E., Thermal Characterization of Some Azo Dyes Containing Intramolecular Hydrogen Bonds and Non-Bonds, J. Therm. Anal. Cal., 71:675-679 (2003).

[19] Rotaru A., Moanţ¸ă A., Popa G., Rotaru P., Segal E., Thermal Decomposition Kinetics of Some Aromatic Aomonoethers: Part IV. Non-Isothermal Kinetics of 2-allyl-4-((4-(4-methylbenzyloxy) phenyl) diazenyl) Phenol in Air Flow, J. Therm. Anal. Calorim., 97: 485–491 (2009).

[20] Mocanu A., Odochian L., Apostolescu N., Moldoveanu C., TG-FTIR Study on Thermal Degradation in Air of Some New Diazoaminoderivatives, J. Therm. Anal. Calorim., 100: 615-622 (2010).

[21] Mocanu A., Odochian L., Moldoveanu C., Carja G., TG-FTIR Study on Thermal Degradation in Air of Some New Diazoaminoderivatives (II), Thermochimica Acta, 509: 33-39 (2010).

[22] Mocanu A., Odochian L., Apostolescu N., Moldoveanu C., Comparative Study on Thermal Degradation of Some New Diazoaminoderivatives Under Air and Nitrogen Atmospheres, J. Therm. Anal. Calorim., 103: 283-291 (2011).

[23] Coats A.W., Redfern J.P., Kinetic Parameters from Thermogravimetric Data, Nature, 201: 68 (1964).

[24] Ozawa T., A New Method of Analysing Thermogravimetric Data”, Bull. Chem. Soc. Jpn., 38: 1881 (1965).

[25] Flynn J.H., Wall L.A., A Quick Direct Method for Determination of Activation Energy from Thermogravimetric Data, J Polym Sci, B4: 323–8 (1966).

[26] Kissinger H.E., Reaction Kinetics in Deferential Thermal Analysis, Anal Chem., 29: 1702-6 (1957).

[28] Houas A.H., Lachhab M., Ksibi E., Elaloui C., Guillard C., Herrmann J.M., Photocatalytic Degradation Pathway of Methylene Blue in Water, Appl. Catal. B: Environ., 31, 145-157 (2001).      

[29] Al-Maydama H.M., El-Shekeil A.G., Al-Karbouly A., Al-Ikrimawy W., Thermal Degradation Behavior of Some Poly [4-amino-2,6-pyrimidinothiocarbamate] Metal Complexes, the Arabian journal for science and engineering, 34(1):67-75 (2009).

[32] Vyazovkin S., Sbirrazzuoli N., Isoconversional Kinetic Analysis of Thermally Stimulated Processes in Polymers, Macromol Rapid Commun., 27: 1515–32 (2006).

[33] Wang H., Tao X., Newton E., Thermal Degradation Kinetics and Lifetime Prediction of a Luminescent Conducting Polymer, Polym. Int., 53: 20–26 (2004).

[34] Liu C., Yu J., Sun X., Zhang J., He J., Thermal Degradation Studies of Cyclic Olefin Copolymers, Polym Degrad Stab., 81: 197-205 (2003).

[35] Al-Maydama H.M., Comments on the Effect of UV Radiation on the Thermal Parameters of Collagen Degradation, Polym Degrad Stab., 84: 363-365 (2004).

[36] Xin-Gui Li, Huang M-R., Thermal Decomposition Kinetics of Thermotropic Poly(oxybenzoate-co-oxynaphthoate), Polymer Degradation Stability, 64: 81-90 (1999).

[37] Prime R.B., Bair H. E., Vyazovkin S., Gallagher P.K., Riga A., Thermogravimetric Analysis (TGA). In Thermal Analysis of Polymers: Fundamentals and Applications, eds. J. D. Menczel and R. B. Prime. Hoboken, NY: Willey, 241–317 (2009).