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Reference type: Journal
Authors: Li XL, Chen J, Yang CF
Article Title: Fabrication of Polyether Sulfone Blend Imprinted Membranes for Selective Adsorption of p-hydroxybenzonic from Salicylic Acid.
Publication date: 2018
Journal: Fibers and Polymers
Volume: 19
Issue: (5)
Page numbers: 977-986.
DOI: 10.1007/s12221-018-1106-4

Abstract: Highly selective polyether sulfone (PES) blend imprinted membranes for template p-hydroxybenzonic (p-HB) were synthesized by phase inversion imprinting technique using polybenzimidazoles (PBI) as a functional polymer and nanosized Al2O3 as the additives. The SEM analysis showed that cross-sectional morphology of membranes were strongly influenced by the content of nano-sized Al2O3. Compared with PES1-MIM, PES2-MIM and PES4-MIM, the PES3-MIM containing 2.0 wt.% nano-sized Al2O3 exhibited higher membrane flux, kinetic equilibrium adsorption value, binding capacity and better selectivity for p-HB. The experimental data of adsorption kinetic were well fitted to the pseudo-secondorder kinetic model using multiple regression analysis. Static adsorption isotherm experiments exhibited that the PES3-MIM had the maximum adsorption capacity for p-HB. Moreover, selective experiment showed that the selectivity coefficients of PES3-MIM for p-HB relative to salicylic acid (SA) was 3.670, showing that PES3-MIM had excellent binding affinity and selectivity for separating p-HB form p-HB-contained aqueous solution
Template and target information: p-hydroxybenzonic, p-HB
Author keywords: p-hydroxybenzonic, Polyether sulfone, Phase inversion technique, Imprinted Membrane, selective adsorption


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