Bazik Mavi-16 Boyarmaddesinin Kil Üzerine Adsorpsiyonu

Year 2014, Volume: 1 Issue: 2, 29 - 38, 05.07.2014

Bahri Ersoy , Sedef Dıkmen , Ahmet Günay Atilla Evcin

Abstract

Katyonik bir boya olan bazik mavi-16 (BB16)’nın kesikli bir sistemde montmorillonitik kil üzerine adsorpsiyonu çalışıldı ve adsorpsiyon dengesi, adsorpsiyon termodinamiği ve adsorpsiyon mekanizmaları incelendi. Bu kapsamda farklı sıcaklıklarda, farklı boya başlangıç konsantrasyonlarında ve farklı pH’larda adsorpsiyon testleri uygulandı. Ayrıca farklı sıcaklıklarda zeta potansiyel (ZP) ölçümleri yapıldı ve adsorpsiyondan önce ve sonra kilin FTIR spektrumları alındı. Deneysel olarak elde edilen adsorpsiyon verilerine, iki parametreli (Freundlich, Langmuir, Tempkin, Dubinin-Radushkevich (D-R)) ve üç parametreli (Redlich-Peterson(R-D), Sips, Toth ve  Khan) adsorpsiyon izoterm modelleri uygulanarak modellendi ve izoterm sabitleri hesaplandı. İki parametreli izoterm modelleri içerisinde Freundlich ve üç parametreli izoterm modelleri içerisinde ise Sips ve Khan modelleri deney verilerine en uygun modeller oldu. Giriş konsantrasyonu 1400 mg/l BB16 için montmorillonitik kilin maksimum adsorplama kapasitesi 15, 25 ve 35 ºC sıcaklıklar için sırasıyla 509,7; 525,0 ve 570,7 mg/g’dır. Farklı sıcaklıklarda elde edilen adsorpsiyon izotermleri kullanılarak adsorpsiyon gibbs serbest enerjisi (DG^o), entalpisi(DH^o) ve entropisi (DS^o) hesaplandı. Elde edilen negatif DG değerleri, adsorpsiyonun kendiliğinden meydana geldiğini göstermektedir. BB16’nın montmorillonitik kil üzerine adsorpsiyonunu sağlayan olası mekanizmalar hidrojen bağı oluşumu, elektrostatik etkileşim ve boya-boya etkileşimi şeklinde sıralanabilir.

Keywords

Adsorpsiyon, Bazik Boya, Montmorillonit, Izoterm, Termodinamik, FTIR

Supporting Institution

TÜBİTAK

Project Number

109Y163

Thanks

Bu çalışma TÜBİTAK projesi kapsamında gerçekleştirilmiştir (Proje Kodu: 109Y163). Bu makale Adsorption [19:757–768 (2013)] dergisinde yayınlanan İngilizce makalenin, bazı kısaltmalar ve ilavelerle yeniden düzenlenmiş ve Türkçe olarak hazırlanmış halidir.

Adsorption of Basic Blue-16 Dye onto Clay

Abstract

Cationic dye, basic blue 16 (BB16), adsorption onto montmorillonitic clay was studied in a batch system, and adsorption equilibrium, thermodynamics and mechanism were investigated. In this scope, adsorption tests were carried out at various temperatures, initial dye concentrations and pHs. Also, zeta potential measurements at different temperatures were performed and FTIR spectrums of clay samples were obtained before and after dye adsorption tests. Three-parameter (Redlich–Peterson, Sips, Toth and Khan) and twoparameter (Freundlich, Langmuir, Temkin and Dubinin–Radushkevich) adsorption isotherm models were applied on the obtained experimental results and the model constants were calculated. Three-parameter isotherms showed relatively higher regression coefficients and lower relative errors (<5%) than two-parameter isotherms. Of the two-parameter isotherms, the Freundlich isotherm best described the experimental data while the best fitting isotherms were Sips and Khan for three-parameter isotherms. Maximum experimental adsorption capacity was found to be 509.7, 525.0 and 570.7 mg/g for 15, 25 and 35 ºC, respectively, for the initial BB16 concentration of 1400 mg/l. Gibbs adsorption free energy(Go), enthalpy (Ho) and entropy(So) were calculated using the adsorption isotherms obtained at various temperatures. Negative Gibbs free energy shows the BB16 dye adsorption onto clay is spontaneous. The possible interaction mechanisms causing to dye adsorption between the dye molecule and clay can be listed as hydrogen bonding, electrostatic interaction and dye-dye interaction. 

Keywords

Adsorption, Basic dye, Clay, Isoterm, Thermodynamic, FTIR

Project Number

109Y163

References

• Abadulla, T., Tzanov, S., Costa, K. H., Robra, A., CavacoPaulo, G. G., 2000. Decolorization and Detoxification of Textile Dyes with a Laccase from Trametes Hirsuta, Applied Environmental Microbiology 66, 3357-3362.
• Acemioğlu, B., 2004. Adsorption of Congo Red from Aqueous Solution onto Calcium-Rich Fly Ash, Journal of Colloid and Interface Science, 274, 371-379.
• Akyüz, S., Akyüz, T., 2006. FT-IR Spectroscopic Investigations of Adsorption of 2-, 3- and 4- Pyridinecarboxamide on Montmorillonite and Saponite from Anatolia, Vibrational Spectroscopy, 42, 387-391.
• Crini, G., 2006. Non-conventional Low-cost Adsorbans for Dye Removal: a Review, Bioresource Technology, 97, 1061-1085.
• Dubinin, M. M., Radushkevic, L.V., 1947. Equation of the Characteristic Curve of Activated Charcoal, Chem. Zentr. 1, 875. Eren, E., 2009. Investigation of a basic dye removal from aqueous solution onto chemically modified Unye bentonite, Journal of Hazardous Materials, 166, 88-93.
• Ersoy, B. ve Çelik, M. S., 2003. Effect of Hydrocarbon Chain Length on Adsorption of Cationic Surfactants onto Clinoptilolite, Clays and Clay Minerals, 51, 2, 173-181.
• Gemeay, A. H., 2002. Adsorption characteristics and the kinetics of the cation Exchange of rhodamine-6G with Na+ -Montmorillonite, Journal of Colloid and Interface Science 251, 235-241.
• Grim, R.E., 1968. Clay Mineralogy. McGraw-Hill Book Company, New York.
• Günay, A., Arslankaya, E., Tosun, İ., 2007. Lead Removal from Aqueous Solution by Natural and Pretreated Clinoptilolite: Adsorption Equilibrium and Kinetics, Journal of Hazardous Materials, 146, 362-371.
• Güngör, N., Karaoğlan, S., 2001. Interactions of Polyacrylamide Polymer with Bentonite in Aqueous Systems, Material Letters, 48, 168-175).
• Hunter, J. R., 1988. Zeta Potential in Colloid Science, Principles and Applications, Academic Press: San Diego, p. 342
• Khan, A. R., Al Waheab, I. R., Al-Haddad, A. A, 1996. Generalized Equation for Adsorption Isotherms For Multicomponent Organic Pollutants in Dilute Aqueous Solution, Environmental Technology, 13-23.
• Klika, Z., Weissmannova, H., Capkova, P. And Pospisil, M., 2004. The rhodamin B intercalation of montmorillonite, Journal of Colloid and Interface Science, 275, 243-250.
• Leja, J., 1982. Surface Chemistry Of Froth Flotation. Plenum Press, New York.
• Nandi, B.K., A. Goswami and M.K. Purkait, 2009. Removal of cationic dyes from aqueous solutions by Kaolin: Kinetics and equilibrium studies. Applied Clay Sci., 42: 583-590.
• Ogawa, M., Ishii, T., Miyomoto, N., Kuroda, K., 2003. Intercalation of a cationic azobenzene into montmorillonite, Applied Clay Science, 22, 179-185.
• Özcan, A., Ömeroğlu, C., Erdoğan, Y., Özcan, A. S., 2007. Modification of Bentonite with A Cationic Surfactant: An Adsorption Study of Textile Dye Reactive Blue 19, Journal of Hazardous Materials, 140, 173-179.
• Redlich, O. J., Peterson, D. L., 1959. A useful adsorption isotherm, Journal of Physical Chemistry, 63, 1024-1026.
• Roulia, M. and Vassiliadis, A.A., 2005. Interaction between C.I. Basic Blue 41 and aluminosilicate sorbents, Journal of Colloid and Interface Science, 291, 37-44.
• Selvam, P.P., Preethi, S., Basakaralingam, P., Thinakaran, N., Sivasamy, A. and Sivanesan, S., 2008. Removal of rhodamin B from aqueous solution by adsorption onto sodium montmorillonite, Journal of Hazardous Materials, 155, 39-44.
• Sips, R., 1948. On the structure of a catalyst surface, Journal of Chemical Physics, 16 (5), 490-495.
• Somasundaran, P., Fuerstenau, D. W., 1966. Mechanisms of alkyl sulfonate adsorption at the alumina-water interface. Journal of Physical Chemistry, 70, 90-96.
• Toth, J., 1971. State equations of the solid gas interface layer, Acta Chimica Hungary, 69, 311-317.
• Wang, J. and Somasundaran, P., 2006. Mechanism of ethyl (hydroxyethyl) cellulose-solid interaction: Influence of hydrophobic modification, Journal of Colloid and Interface Science, 293, 322-332.
• Wypych, F., 2004. Clay Surfaces, Fundamental and Applications (Eds.: F. Wypych, K.G. Satyanarayana) Chemical Modification of Clay Surfaces, p.578.
• XU, S., Boyd, S. A., 1995. Cationic surfactant sorption to a vermiculitic subsoil via hydrophobic bonding, Environmental Science & Technology, 29, 312-320.
• Zaman, A., Tsuchiya, R., Moudgil, B. M., 2002. Adsorption of a low-molecular-weight polyacrylic acid on silica, alumina and montmorillonite, Journal Colloid and Interface Science, 256, 73-78.