Proceedings title: Applied Mechanics and Materials
Editors: Hegde G
Publisher: Trans Tech Publications
Volume number: 665
Conference information: Materials Science and Processing, Environmental Engineering and Information Technologies
Abstract: A novel magnetic arsenate imprinted polymer (MIIP) was synthesized through a surface imprinting technique with combined utilization of two different amine containing functional monomers (allylamine and 3-aminopropyl triethoxysilane) and tetraethyl orthosilicate modified magnetic Fe3O4 nanoparticles as a support. The synthesized MIIP was used to investigate the selective adsorption performance for arsenate. The results showed that this MIIP has a high selective As (V) adsorption efficiency and easy for the separation of the adsorbent from aqueous solutions. In the presence of competing ions including Ca2+, Mg2+, Cd2+, Zn2+, Cu2+, Mn2+, Ni2+ and As (III), the synthesized MIIP can selectively and efficiently adsorb As (V) species. Compared with the non-imprinted magnetic polymer (NIP), it was found that this MIIP showed high selectivity coefficients for As (V)/Ca2+, As (V)/Mg2+, As (V)/Cd2+, As (V)/Zn2+, As (V)/Cu2+, As (V)/Mn2+, As (V)/Ni2+, and As (V)/As (III) with 4.46, 5.60, 5.45,8.48,13.5,15.9,38.7, and 102.9, respectively. Langmuir model was applied to fit the adsorption isotherm data, and the maximum adsorption capacity for As (V) was calculated as 7.53mg/g.
Template and target information: arsenate ion, As(V)
Author keywords: Arsenate, Ion imprinting technology, Magnetic, selective adsorption