Sulu Çözeltiden Metilen Mavisinin Giderilmesi için ARCFe3O4 Nanokompozitlerinin Sentezlenmesi

Yıl 2020, , 667 - 678, 31.05.2020

Kadriye Bozgeyik , Atakan Toprak

https://doi.org/10.31202/ecjse.689309

Öz

Tek basamakta termal yöntem ile elde edilen manyetik (Fe3O4) kömür nanokompozitleri üzerine metilen mavisinin (MB) adsorpsiyonu incelenmiştir. ARCFe3O4 x kompozitleri Fe(NO3)3. 9H2O’ün dört farklı (x = 0.5, 1, 2 ve 3) oran olacak şekilde sentezlenmiştir. Nanokompozitler, taramalı elektron mikroskobu (SEM), X-ışını kırınımı (XRD) ve N2 adsorpsiyonu ile karakterize edilmişlerdir. ARCFe3O4 x kompozitlerinin denge ve hız deneyleri kesikli sistemde gerçekleştirilmiştir. Deneysel denge verileri Langmuir ve Freundlich izoterm modelleri ile karşılaştırılmıştır. Ayrıca nanokompozitlerin/MB pseudo-birinci ve ikinci derece kinetik modellere uygunluğu analiz edilmiştir. Tüm ARCFe3O4 x/MB sistemlerinin pseudo-birinci derece kinetik modeli ile uyumlu olduğu bulunmuştur.

Anahtar Kelimeler

Kömür, manyetik nanokompozit, adsorpsiyon izotermleri

Synthesis of ARCFe3O4 Nanocomposites for Removal of Hazardous Dye from Aqueous Media

Öz

Magnetic (Fe3O4) coal nanocomposites obtained using thermal method in one-step and the removal of methylene blue (MB) was investigated. ARCFe3O4 x composites were synthesized in four different ratios (x = 0.5, 1, 2 and 3) of Fe(NO3)3. 9H2O. The nanocomposites were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and N2 adsorption. Equilibrium and rate experiments of ARCFe3O4 x composites were carried out in batch system. Experimental equilibrium analysis was compared with Langmuir and Freundlich isotherm models. In addition, nanocomposite/MB system has been determined for pseudo-first and second degree kinetic models. It was found that all ARCFe3O4 x/MB systems are compatible with the pseudo-first order kinetic model.

Anahtar Kelimeler

Coal; magnetic nanocomposite; adsorption isotherms.

Kaynakça

• Deniz, F., Karaman, S., ‘Removal of Basic Red 46 dye from aqueous solution by pine tree leaves’, Chemical Engineering Journal, 2011, 170: 67–74.
• Deng, H., Lu, J., Li, G., Zhang, G., Wang, X., ‘Adsorption of methylene blue on adsorbent materials produced from cotton stalk’, Chemical Engineering Journal, 2011, 172: 326– 334.
• Chen, L., Ramadan, A., Lü, L., Shao, W., Luo, F. and Chen J., ‘Biosorption of methylene blue from aqueous aolution using lawny grass modified with citric acid’, Journal of Chemical & Engineering Data, 2011, 56: 3392–3399.
• Zarezadeh-Mehrizi, M., & Badiei, A., ‘Highly efficient removal of basic blue 41 with nanoporous silica’, Water Resources and Industry, 2014, 5: 49-57.
• Ma, H., Li, J. B., Liu, W. W., Miao, M., Cheng, B. J., & Zhu, S. W., ‘Novel synthesis of a versatile magnetic adsorbent derived from corncob for dye removal’, Bioresource technology, 2015, 190: 13-20.
• Kopac, T., and Toprak A., ‘Preparation of activated carbons from Zonguldak region coals by physical and chemical activations for hydrogen sorption’, International Journal of Hydrogen Energy, 2007, 32(18): 5005-5014.
• Gregg, S. J., and Sing, K. S. W., ‘Adsorption, surface area, and porosity’, 2nd Ed., London, UK: Academic Press, 1991.
• Sing, K., ‘The use of nitrogen adsorption for the characterisation of porous materials’, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2001, 187: 3-9.
• Chaki, S. H., Malek, T. J., Chaudhary, M. D., Tailor, J. P., & Deshpande, M. P., ‘Magnetite Fe3O4 nanoparticles synthesis by wet chemical reduction and their characterization’, Advances in Natural Sciences: Nanoscience and Nanotechnology, 2015, 6(3): 035009.
• Al-Degs, Y. S., El-Barghouthi, M. I., El-Sheikh, A. H., Walker, G.M., ‘Effect of solution pH, ionic strength, and temperature on adsorption behavior of reactive dyes on activated carbon’, Dyes and Pigments, 2007, 77: 16-23. Saroyan, H. S., Giannakoudakis, D. A., Sarafidis, C.S., Lazaridis, N. K., and Deliyanni E. A., ‘Effective impregnation for the preparation of magnetic mesoporous carbon: application to dye adsorption’, J Chem Technol Biotechnol. ,2017, 92(8): 1899-1911.
• Liu, T., Li Y., Du, Q., Suna, J., Jiao Y., Yanga, G., Wang, Z., Xia, Y., Zhang, W., Wang, K., Zhu, H., Wu D., ‘Adsorption of methylene blue from aqueous solution by graphene’, Colloids and Surfaces B: Biointerfaces, 2012, 90:197-203.
• Ho, Y.S., McKay G., ‘Pseudo-second order model for sorption processes’, Process Biochemistry, 1999, 34: 451–465.