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Original scientific paper

METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS

Mirela Rožič   ORCID icon orcid.org/0000-0003-2621-1191 ; University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia
Ira Senji ; University of Zagreb, Faculty of Graphic Arts, Zagreb, Croatia
Snežana Miljanić ; University of Zagreb, Faculty of Science, Department of Chemistry, Zagreb, Croatia

Fulltext: english, pdf (439 KB) pages 97-110 downloads: 214* cite
APA 6th Edition
Rožič, M., Senji, I. & Miljanić, S. (2014). METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS. The holistic approach to environment, 4 (3), 97-110. Retrieved from https://hrcak.srce.hr/125569
MLA 8th Edition
Rožič, Mirela, et al. "METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS." The holistic approach to environment, vol. 4, no. 3, 2014, pp. 97-110. https://hrcak.srce.hr/125569. Accessed 25 Feb. 2020.
Chicago 17th Edition
Rožič, Mirela, Ira Senji and Snežana Miljanić. "METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS." The holistic approach to environment 4, no. 3 (2014): 97-110. https://hrcak.srce.hr/125569
Harvard
Rožič, M., Senji, I., and Miljanić, S. (2014). 'METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS', The holistic approach to environment, 4(3), pp. 97-110. Available at: https://hrcak.srce.hr/125569 (Accessed 25 February 2020)
Vancouver
Rožič M, Senji I, Miljanić S. METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS. The holistic approach to environment [Internet]. 2014 [cited 2020 February 25];4(3):97-110. Available from: https://hrcak.srce.hr/125569
IEEE
M. Rožič, I. Senji and S. Miljanić, "METHYLENE BLUE SORPTION CHARACTERISATION ONTO ORANGE AND LEMON PEELS", The holistic approach to environment, vol.4, no. 3, pp. 97-110, 2014. [Online]. Available: https://hrcak.srce.hr/125569. [Accessed: 25 February 2020]

Abstracts
Chemical properties of cationic biosorbents, the orange peel and the lemon peel, have been studied. ATR and Raman spectra indicated that the functional groups in the peels structure responsible for dye sorption are carboxyl groups (COOH and COOM, M=Na+,K+,Ca2+,Mg2+) and hydroxyl groups (OH). Increasing the mass of the peels in water suspensions a decrease in dissociation of both, the –COOH and –COOM groups was obtained. Sorption isotherms of methylene blue onto the biosorbents had two sorption plateaus. Hence the carboxyl groups interacted with methylene blue up to the first plateau, while sorption by also the hydroxyl groups occurred from the first to the second plateau. A very good agreement between the amounts of the carboxyl groups estimated in the peels and the amounts of the dye molecules sorbed onto the peels was obtained.

Keywords
biosorbent; peel; characterization; methylene blue

Hrčak ID: 125569

URI
https://hrcak.srce.hr/125569

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