Preparation of Chitosan/Iron Oxide Nanocomposite: Morphology and Study of Adsorption Characteristics for Removal of Azo-Dye from Contaminated Waters

Document Type : Research Article

Authors

1 Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, I.R. IRAN

2 Department of Environmental Science, Faculty of Science, University of Zanjan, Zanjan, I.R. IRAN

Abstract

Due to the wide use of Azo-dyes in various industries, they are among the most important organic pollutants in water. Mutagenicity, carcinogenicity, the toxicity of its byproducts and production of unfavorable color in water are important and unpleasant properties of Azo-dyes. The aim of this study is to fabricate chitosan/iron oxide nanocomposite and assess its ability for removal of Eriochrome black-T as an Azo-dye from contaminated waters. The chitosan/iron oxide nanocomposite was prepared and characterized by Fourier transform infrared spectroscopy, field emission scanning electron microscopy, transmission electron microscopy, Brunner, Emmett, and Teller analysis and X-ray diffraction. The TEMPeffectiveness of the adsorbent for removal of the dye from prepared aqueous solutions was assessed in the laboratory. TEMPEffect of Eriochrome black T concentrations, amounts of the adsorbent, pH solution and contact time on decolorization were evaluated with “one at a time” method which in optimal conditions the maximum dye removal was higher TEMPthan 95%. The experimental isotherms data were analyzed using Langmuir, Temkin and Freundlich isotherm equations. Adsorption kinetics data were properly fitted with the pseudo-second-order kinetic model. The best fit was obtained by the Langmuir model with high correlation coefficients (R2=0.95) with a maximum monolayer adsorption capacity about 200 mg/g. The results show that the adsorbent can efficiently remove 60 percent of Azo-dye form samples simulated with real matrix so the synthesized Nanocomposite efficiently removed the dye.

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[1] Savenije H.H., Why Water Is Not an Ordinary Economic Good, or Why the Girl is Special, Phys. Chem. Earth., 27: 741-744 (2002).
[2] Raveendra R., Prashanth P., Malini B., Nagabhushana B., Adsorption of Eriochrome Black-T Azo Dye from Aqueous solution on Low cost Activated Carbon Prepared from Tridax Procumbens, Res. J. Chem. Sci., 5: 9-13 (2015).
[3] Moeinpour F., Alimoradi A., Kazemi M., Efficient Removal of Eriochrome black-T from Aqueous Solution Using NiFe2O4 Magnetic Nanoparticles, J. Environ. Health Sci. Eng., 12: 1-7 (2014).
[5] قادری، فرهاد؛ آیتی، بیتا؛ گنجی­دوست، حسین؛ صراف ماموری، رسول؛ حذف رنگزای اسید اورانژ 7توسط سامانه ازنزنی/ فتوکاتالیستی ارتقا یافته، نشریه شیمی و مهندسی شیمی ایران، (2)34: 47 تا 61 (1394).
[6] Reddy D.H.K., Lee S. M., Application of Magnetic Chitosan Composites for the Removal of Toxic Metal and Dyes from Aqueous Solutions, Adv. Colloid Interface Sci., 201: 68-93 (2013).
[7] Bouguettoucha A., Reffas A., Chebli D., Amrane A., Adsorption of the Cationic Dye Ethyl Violet on Acid and Alkali-Treated Wild Carob Powder, A Low-Cost Adsorbent Derived from Forest Waste, Iran. J. Chem. Chem. Eng. (IJCCE), 36: 87-96 (2017).
[10] Dave P.N., Kaur S., Khosla E., Removal of Eriochrome Black-T by Adsorption Onto E ucalyptus Bark  Using Green Technology, Indian J. Chem. Technol., 18: 53-60 (2011).
[11] Luna de M.D.G., Flores E.D., Genuino D.A.D., Futalan C.M., Wan M.-W., Adsorption of Eriochrome Black T (EBT) Dye Using Activated Carbon Prepared from Waste Rice Hulls Optimization, Isotherm and Kinetic Studies, J. Taiwan Inst. Chem. Eng., 44(4): 646-653 (2013).
[12] Dong K., Qiu F., Guo X., Xu J., Yang D., He K., Adsorption Behavior of Azo Dye Eriochrome Black T from Aqueous Solution by β-cyclodextrins/Polyurethane Foam Material, Polym. Plast. Technol. Eng., 52(5): 452-460 (2013).
[16] Devi R.R., Umlong I.M., Das B., Borah K., Thakur A.J., Raul P.K., Banerjee S., Singh L., Removal of Iron and Arsenic (III) from Drinking Water Using Iron Oxide-Coated Sand and Limestone, Appl. Water Sci., 4:175-182 (2014).
[17] اسلامی، فرزانه؛ زمانی، عباسعلی؛ پری­زنگنه، عبدالحسین؛ کشوردوست­چوکامی، مینا؛ سنتز نانو کامپوزیت‌ چیتوسان/اکسید آهن و کاربرد آن در حذف رنگ اریوکروم بلک T از آب­های آلوده، هشتمین همایش ملی و نمایشگاه تخصصی مهندسی محیط زیست، دانشگاه تهران، آبان‌ماه، (1395).
[18] Huang G., Zhang H., Shi J., Langrish T., Adsorption of Chromium(VI) from Aqueous Solutions Using Cross-Linked Magnetic Chitosan Beads, Ind. Eng. Chem. Res., 48: 2646-2651 (2009).
[19] Ding Y., Shen S.Z., Sun H., Sun K., Liu F., Qi Y., Yan J., Design and Construction of Polymerized-Chitosan Coated Fe3O4 Magnetic Nano-Particles and its Application for Hydrophobic Drug Delivery, Mater. Sci. Eng. C., 48: 487-498 (2015).
[21] Febrianto J., Kosasih A.N., Sunarso J., Ju Y.H., Indraswati N., Ismadji S., Equilibrium and Kinetic Studies in Adsorption of Heavy Metals Using Biosorbent: A Summary of Recent Studies, J. Hazard. Mater., 162: 616-645 (2009).
[22] Zamani A.A., Shokri R., Yaftian M.R., Parizanganeh A.H., Adsorption of Lead, Zinc and Cadmium Ions from Contaminated Water onto Peganum Harmala Seeds as Biosorbent, Int. J. Environ. Sci. Technol., 10: 93-102 (2013).
[24] Unsoy G., Yaclin S., Khodadoust R., Gunduz G., Gunduz U., Synthesis Optimization and Characterization of Chitosan-Coated Iron Oxide Nanoparticles Produced for Biomedical Applications, J. Nanopart. Res., 14, 964: 1-14 (2012).