MIPs logo MIPdatabase      Use this space
Custom Search
Reference type: Journal
Authors: da Silva Anacleto S, de Oliveira HL, da Silva ATM, do Nascimento TA, Borges KB
Article Title: Preparation of an organic-inorganic hybrid molecularly imprinted polymer for effective removal of albendazole sulfoxide enantiomers from aqueous medium.
Publication date: 2017
Journal: Journal of Environmental Chemical Engineering
Volume: 5
Issue: (6)
Page numbers: 6179-6187.
DOI: 10.1016/j.jece.2017.11.049
Alternative URL: https://www.sciencedirect.com/science/article/pii/S2213343717306073

Abstract: An efficient adsorbent using an organic-inorganic hybrid molecularly imprinted polymer (MIP) based on poly(methacrylic acid)-silica, named MIP-poly(MAA)-SiO2, was prepared for removal of albendazole sulfoxide (ABZSO) enantiomers from contaminated water. Sorption behaviors of MIP-poly(MAA)-SiO2 and nonimprinted polymer (NIP) for ABZSO enantiomers including sorption kinetics, isotherms and effect of pH were investigated in detail. The pH 9.0 was te best for adsorption of ABZSO enantiomers and the time necessary to reaching equilibrium of adsorption was 20 min. The kinetic data were analyzed using four models, but the adsorption kinetics were best described by the pseudo-second-order model with R2 = 0.999 for both materials, indicating that adsorption processes occur more effectively on external sites of MIP-poly(MAA)-SiO2 and NIP-poly(MAA)-SiO2, and at equilibrium the MIP adsorbed more than 70% and NIP no more than 50% of ABZSO enantiomers. These results agree with the Langmuir isotherm model, which assumes that the adsorption process occurs in a homogeneous way, in a monolayer surface. This model provided for both enantiomers employing MIP-poly(MAA)-SiO2 and NIP-poly(MAA)-SiO2 an adsorption capacity (Q) of around 140 mg g-1 and 35 mg g-1, respectively. The constants related to the affinity, KL, for (R)-(+)-ABZSO and (S)-(-)-ABZSO were 0.0064 and 0.0063 L g-1 for MIP-poly(MAA)-SiO2 and 0.0166 and 0.0255 L g-1 for NIP-poly(MAA)-SiO2. This adsorbent material showed great potential in separation, sample preparation processes and removal pharmaceuticals from aqueous medium, besides being able to be used several times without significant losing its desorption amount
Template and target information: albendazole sulfoxide, ABZSO
Author keywords: Adsorption Studies, albendazole sulfoxide enantiomers, organic-inorganic hybrid molecularly imprinted polymer, sample preparation


  Periodic table Cream Cakes - the chemical formula for naughty but nice apron  Periodic table Bag bag  Meerkat somebody mention coffee mug

Molecules Special Issue call      Appeal for information






Join the Society for Molecular Imprinting
Logo of the Society for Molecular Imprinting

New items RSS feed
new items RSS feed  View latest updates

Sign-up for e-mail updates:
Choose between receiving an occasional newsletter or more frequent e-mail alerts.
Click here to go to the sign-up page.


Is your name elemental or peptidic? Enter your name and find out by clicking either of the buttons below!
Other products you may like:
view listings for MIP books on eBay:
US listings   UK listings

Searching for Molecular Imprinting books on Amazon.com:
Molecular Imprinting
Imprinted Polymers
Polymer Chemistry
Organic Chemistry
Biosensors

Find what you need at Amazon.com

Lab supplies from Amazon