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Vol. 29 No. 2 (2017): Vol 29 Issue 2

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Chitosan/Silica/Polyethylene Glycol (Ch/Si/P) Composites Membrane as Selective Adsorbent of Rhodamine B from Aqueous Solution

https://doi.org/10.14233/ajchem.2017.20157
F. Widhi Mahatmanti
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang 50229, Indonesia
W.D.P. Rengga
Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang 50229, Indonesia
E. Kusumastuti
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang 50229, Indonesia
Nuryono
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281 Indonesia

Corresponding Author(s) : F. Widhi Mahatmanti

widhimahatmanti@rocketmail.com; fwidhi_kimia@mail.unnes.ac.id

Asian Journal of Chemistry, Vol. 29 No. 2 (2017): Vol 29 Issue 2

Abstract

In this research, chitosan/silica/polyethylene glycol (Ch/Si/P) composites membrane was used as selective adsorbent of rhodamine B from aqueous solution. This study involved by preparation Ch/Si/P composites membrane. The structure and surface morphology of Ch/Si/P composites membrane was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy. Batch adsorption experiments were conducted with various contact time and rhodamine B concentrations to evaluate the adsorption kinetics and thermodynamics. Results show that adsorption fitted to Langmuir model and followed a kinetic model of pseudo-second-order. The adsorption capacity of rhodamine B onto the Ch/Si/P composites membrane is 0.052 mmol/g.The relative selective factor (af) values of rhodamine B/Cu and rhodamine B/Pb are 3.53 and 0.42. This means that rhodamine B can be determined even in the presence of Cu interference, but can’t be determined in the presence of Pb interference.

Keywords

Adsorption Rhodamine B Chitosan Silica Polyethylene glycol Membrane
Mahatmanti, F. W., Rengga, W., Kusumastuti, E., & Nuryono, . (2016). Chitosan/Silica/Polyethylene Glycol (Ch/Si/P) Composites Membrane as Selective Adsorbent of Rhodamine B from Aqueous Solution. Asian Journal of Chemistry, 29(2), 283–286. https://doi.org/10.14233/ajchem.2017.20157
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