Open AccessAdsorption of Zinc(II) onto Zn(II)-Ionic Imprinted Polymer
Author(s) -
Teguh Wirawan,
Ganden Supriyanto,
Agoes Soegianto
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/546/2/022036
Subject(s) - ethylene glycol dimethacrylate , adsorption , zinc , methacrylic acid , chemistry , precipitation polymerization , polymer , benzoyl peroxide , polymerization , langmuir adsorption model , acetonitrile , nuclear chemistry , polymer chemistry , inorganic chemistry , radical polymerization , chromatography , organic chemistry
A new Zn(II)-ionic imprinted polymer via precipitation polymerization using 8-hydroxyquinoline (8HQ) as a ligand, methacrylic acid (MAA) as functional monomer, and ethylene glycol dimethacrylate (EGDMA) as a cross-linker has been prepared. The benzoyl peroxide and ethanol/acetonitrile (2:1) mixture were used as initiator and porogen, respectively. The template Zn(II) ion was removed from the polymer by leaching with a solution of 1 M HNO 3. The experimental parameters for adsorption, such as pH of a solution, contact time, and initial zinc concentration, have been optimized. The optimum conditions of zinc adsorption onto the ionic imprinted polymer (IIP) was at pH 5.5 and contact time 15 min. The equilibrium data could be better described by the Langmuir isotherm model. The maximum adsorption capacity of IIP was 20.833 mg/g.