CHEMICAL STABILITYAND ADSORPTION SELECTIVITYON Cd2+IONIC IMPRINTED Nannochloropsis sp MATERIALWITHSILICA MATRIXFROM TETRAETHYL

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2011
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/28551/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11614
• Institution: Universitas Gadjah Mada

Chemical stability, reusability, and adsorption selectivity of Ccr ionic imprinted Nannochloropsissp with silica matrix (Cd(II)-IIP) from precursor tetraethyl orthosilicate (TEOS) have been studied through adsorption experiment series with batch method. Nannochloropsis sp (Cd(II)-IIP) material was characterized with an infrared spectrophotometer (lR) to identify the functional groups in this material and identification of metal ion concentration was analyzed with an atomic absorption spectrophotometer (AAS). Chemical stabifity was determined in solution media of acid, neutral, and base. Adsorption selectivity was obtained with determination of selectivity coefficient (a) of Ccr+ion toward its ionic pair such as Ag+,Zn2+,C,P, and Nr+ ions. Nannochloropsissp Cd(II)-IIP material is vel}' stable in acid media and lack stable in base media as well as it can be reused for extraction4 cycles with adsorption capacity value> 95% using eluent of 0.1 M Na2EDTA.Selectivity of Cd(II)-IIP material upon Crr ion is higher than non imprinted polymer (NIP) and it increases with these orders