Abstract—Zinc-tricarboxylic (Zn-BTC) consists of Zinc Acetate Dihydrate (Zn(CH
3COO)
2∙2H
2O) and 1,3,5 Benzenetricarboxylic Acid (H
3BTC), a well-known metal-organic framework (MOFs). It was synthesized by hydrothermal process. This study was established to analyze the capability of Pb(II) and Cu(II) adsorption onto Zn-BTC synthesized. The adsorption isotherms of Pb(II) and Cu(II) were compared to Langmuir, Freundlich, and Dubinin-Radushkevitch models. The results show greater correlation coefficient between these two adsorption isotherms and Langmuir model. The maximum adsorption capacities of the synthesized Zn-BTC were 416.7 mg/g for Pb(II) and 85.5 mg/g for Cu.
Index Terms—Zinc-tricarboxylic, MOFs, sorption, heavy metal, Pb(II), Cu(II).
C. Koesura, B. Pangkumhang, P. Jutaporn, and V. Tanboonchuy are with Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, 40002, Thailand (e-mail: nay_chanut@kkumail.com, bhuckchanya@gmail.com, panitju@kku.ac.th, and visanu@kku.ac.th).
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Cite: C. Kowsura, B. Pangkumhang, P. Jutaporn, and V. Tanboonchuy, "Isotherm Models of Heavy Metal Sorption onto Zinc-tricarboxylic," International Journal of Chemical Engineering and Applications vol. 8, no. 3, pp. 179-183, 2017.
