Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions

Arabian Journal of Chemistry

Dragan Milenković¹  Predrag Banković²  Milan Momčilović³  Jelena Mitrović⁴  Nena Velinov⁴  Danijela Bojić⁴  Goran Nikolić⁵ 

[1] High Chemical Technological School, 36 Kosančićeva St., 37000 Kruševac, Serbia;University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Center for Catalysis and Chemical Engineering, 12 Njegoševa St., 11000 Belgrade, Serbia;University of Belgrade, Institute of Nuclear Sciences “Vinča”, P.O. Box 522, 11001 Belgrade, Serbia;University of Niš, Department of Chemistry, Faculty of Science and Mathematics, 33 Višegradska St., 18000 Niš, Serbia;University of Niš, Faculty of Technology, 124 Bulevar oslobođenja St., 16000 Leskovac, Serbia;

关键词: Ranitidine;    Drug;    Pollution;    Lagenaria vulgaris;    Adsorption;    Carbon;   

DOI  :  10.1016/j.arabjc.2014.12.018

来源: DOAJ

【 摘 要 】

Practical aspects of Lagenaria vulgaris shell conversion to activated carbon were examined along with its use in ranitidine adsorption. Kinetics and isotherms of adsorption onto Lagenaria vulgaris carbon (LVC) were correlated to several theoretical adsorption models. The best fit was found in the case of Langmuir and pseudo-second-order model indicating monolayer adsorption. The influence of pH under kinetic study showed slightly hindered adsorption below pH 4. The optimal adsorbent dosage was set to 1 g/L. LVC was characterized by several complementary techniques, including wet chemical techniques such as Boehm’s titrations and determination of pHPZC and pH of LVC, which revealed neutral nature of the adsorbent. N2 sorptometry determined specific surface area of 665 m2/g and significant ratio of micropores in the sample with maximum wall’s diameter of 2.2 nm. Fourier transform infrared spectroscopy (FTIR) confirmed the role of lignin and cellulose in the formation of the final LVC structure. Porous structure of the material was proved by using scanning electron microscopy. Preparation of LVC material drew attention as an easy and low-cost process for production of a highly efficient adsorbent which exhibited fast kinetics of ranitidine removal in the first minutes of contacting and large adsorption capacity (315.5 mg/g) at equilibrium.

【 授权许可】

Unknown