American Journal of Physical Chemistry
Volume 7, Issue 1, March 2018, Pages: 6-11
Received: Apr. 7, 2018;
Accepted: Apr. 23, 2018;
Published: May 18, 2018
Views 1287 Downloads 92
A. Z. M. Mainul Islam Mazumder, Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, Bangladesh
Md. Sofiul Alom, Department of Chemistry, Faculty of Engineering, Dhaka University of Engineering & Technology, Gazipur, Bangladesh
Tajmeri S. A. Islam, Department of Chemistry, Faculty of Science, University of Dhaka, Dhaka, Bangladesh
The aim of this study was to investigate the photodegradation of organic pollutants in natural environment with co-existence of iron oxides and oxalic acid. Methylene Blue (MB) was selected as a model pollutant while Fe2O3 was selected as iron oxide. Commercial Fe2O3 was calcined at 300°C, 400°C and 500°C and was used to degrade MB in oxalate solutions of different concentration under UV radiation. Adsorption of MB on the surface of calcined Fe2O3 was studied and 30 minutes was required to reach the adsorption equilibrium. The effect of the initial concentration of oxalic acid, initial concentration of MB and calcined temperature of Fe2O3 on photodegradation of MB in the Fe2O3–oxalate suspension under UV light irradiation was investigated. Oxalic acid plays a very important role, no significant degradation of MB was found in absence of oxalic acid in the suspension. But excess concentration of oxalic acid decreases the degradation. Photodegradation of MB increases with increasing calcined temperature of Fe2O3 and decreases with increase in MB concentration. Since this process does not require the addition of hydrogen peroxide and shows good efficiency under UV irradiation, it is an economically viable method for pre-treating wastewater containing dye.
A. Z. M. Mainul Islam Mazumder,
Md. Sofiul Alom,
Tajmeri S. A. Islam,
Photodegradation of Methylene Blue in Fe2O3–Oxalate Suspension Under UV Light Irradiation, American Journal of Physical Chemistry.
Vol. 7, No. 1,
2018, pp. 6-11.
H. Park, and W. Choi,. J. Photochem. Photobiol. A: Chem., 2003, 159, 241.
J. R. Easton, The dye marker’s view. Oxford: Society of Dyers and Colourists, The Alden Press, 1995, p. 9-21.
H. Selcuk. “Decolorization and detoxification of textile wastewater by ozonation and coagulation processes”. Dyes and Pigments. 2005, 64(3), 217-222.
J. Kiwi, C. Pulgarin, and P. Peringer. “Effect of Fenton and photo-Fenton reactions on the degradation and biodegradability of 2 and 4-nitrophenols in water treatment”. App. Catal. B: Environ. 1994, 3, 335.
D. Oussi, A. Mokrini and S. Esplugas. “Removal of aromatic compounds using UV/H2O2”. Trends Photochem. Photobiol. 1997, 1, 77-83.
F. Herrera, J. Kiwi, A. Lopez and V. Nadtachenk. “Photochemical decoloration of Remazol Brilliant blue and Uniblue A in the presence of Fe(III) and H2O2.” Environ. Sci Technol. 1999, 33, 3145.
D. Georgiou, P. Melidis, A. Aivasidis and K. Gimouhopoulos. "Degradation of azo-reactive dyes by ultraviolet radiation in the presence of hydrogen peroxide" Dyes and Pigments. 2002, 52, 69-78.
O. Prieto, J. Fermoso, Y. Nun˜ez, J. L. del Valle. and R. Irusta, Sol. Energy. 2005, 79, 376.
H. Chun, and Y. Wang. Chemosphere.1999.39, 2107.
M. S. T. Gonçalves, E. M. S. Pinto, P. Nkeonye and A. M. F. Oliveira-Campos. “Degradation of C. I. Reactive. Orange 4 and its Simulated Dyebath Wastewater by Heterogeneous Photocatalysis” Dyes and Pigments. 2005, 64, 135-139.
J. K. Lelandand A. J. Brad. “Photochemistry of Colloidal. Semiconducting Iron Oxide Polymorphs” J. phys. chem. 1987, 91, 5076.
C. Siffert and B. Sulzberger, Langmuir. 1991, 7, 1627-34.
R. M. Cornelland U. Schwertmann. “The Iron Oxides: Structure, Properties, Reactions, Occurences and Uses, (2nd ed.)” Wiley-VCH, Weinheim. 2003.
T. Kayashimaand T. Katayama. “Oxalic acid is available as a natural antioxidant in some systems.” Biochim. Biophys. Acta: Gen. Subj., 2002, 1573(1), 1-3.
H. Kušić, N. Koprivanac, A. L. Božić and S. Selanec, J. Hazard. Mater. B., 2006, 136, 632-644.
X. L. Hao, M. H. Zhou. and L. C. Lei, J. Hazard. Mater. B., 2007, 141(3), 475-82.
G. Sposito. “The Surface Chemistry of Soils.” Oxford University Press, Oxford, UK, 1989.
V. Nadtochenkoand J. Kiwi. “J. Chem. Soc., Faraday Trans., 1997, 93, 2373-78.
M. E. Balmer and B. Sulzberger. “Atrazine Degradation in Irradiated Iron/Oxalate Systems: Effects of pH and Oxalate” Environ. Sci. Technol., 1999, 33(14), 2418-24.
P. Mazellier, and B. Sulzberger. “Diuron degradation in irradiated, heterogeneous iron/oxalate systems: the rate-determining step” Environ. Sci. Technol. 2001, 35(16), 3314-20.
J. Lei, C. Liu, F. Li, X. Li, S. Zhou, X. Liu, G. Ming andQ. Wu, J. Hazard. Mater. B., 2006, 137, 1016.
F. B. Li, X. Z. Li, X. M. Li, T. X. Liu and J. Dong. “Heterogeneous photodegradation of bisphenol A with iron oxides and oxalate in aqueous solution.” J. Colloid Interface Sci. 2007, 311(2), 481-90.
X. Wang, C. Liu, X. Li, F. Li and S. Zhou, J. Hazard. Materials. 2008, 153, 426.
F. Gulshan, S. Yanagida, Y. Kameshima, T. Isobe, A. Nakajima and K. Okada. “Various factors affecting photodecomposition of methylene blue by iron-oxides in an oxalate solution.” Water research. 2010, 44(9), 2876-84.
S. D. Abkenar, M. Khoobi, R. Tarasi, M. Hosseini, A. Shafiee and M. R. Ganjali. “Fast removal of methylene blue from aqueous solution using magnetic-modified Fe3O4 nanoparticles.” J. Environ. Eng. 2015, 141(1).
F. Kazemi, Z. Mohamadnia, B. Kaboudin and Z. Karimi. “Photodegradation of methylene blue with a titanium dioxide/polyacrylamide photocatalyst under sunlight.” J. Appl. Polym. Sci. 2016, 133(19), 43386.
N. S. A. Abdullah, S. Soaib and J. Krishnan. “Effect of calcination temperature on ZnO/TIO2 composite in photocatalytic treatment of phenol under visible light.” Malaysian Journal of Analytical Sciences, 2017 Vol 21(1), 173–181.