F. Widhi Mahatmanti, W.D.P. Rengga, E. Kusumastuti, Nuryono
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 (αf) 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. © 2017, Chemical Publishing Co. All rights reserved.
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, 50229, Indonesia; Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, 50229, Indonesia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta, 55281, Indonesia
