Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Amino-functionalised silica-grafted molecularly imprinted polymers for chloramphenicol adsorption

Mohamed Idris, Z. ; Hameed, B.H. ; Ye, Lei LU orcid ; Hajizadeh, Solmaz LU orcid ; Mattiasson, Bo LU and Mohd Din, A.T. (2020) In Journal of Environmental Chemical Engineering 8(5).
Abstract
This research investigated the liquid-phase removal of chloramphenicol (CAP), an emerging contaminant using molecularly imprinted polymers (MIPs). CAP adsorption profiles, equilibrium, and kinetics were analysed. The adsorption performance was compared between MIPs and non-imprinted polymers (NIPs), both with silica or without silica grafting. The imprinting factor (IF) values for the Si@MIPs-CAP were significantly higher than the IF values for MIPs-CAP adsorbent at pH 8. The kinetics of CAP adsorption was fitted to pseudo-second-order kinetics models for MIPs-CAP (R2 = 0.9998) and Si@MIPs-CAP (R2 = 0.9999). The adsorption isotherm of Si@MIPs-CAP was well represented by the Langmuir model (R2 = 0.9991), while the Freundlich isotherm model... (More)
This research investigated the liquid-phase removal of chloramphenicol (CAP), an emerging contaminant using molecularly imprinted polymers (MIPs). CAP adsorption profiles, equilibrium, and kinetics were analysed. The adsorption performance was compared between MIPs and non-imprinted polymers (NIPs), both with silica or without silica grafting. The imprinting factor (IF) values for the Si@MIPs-CAP were significantly higher than the IF values for MIPs-CAP adsorbent at pH 8. The kinetics of CAP adsorption was fitted to pseudo-second-order kinetics models for MIPs-CAP (R2 = 0.9998) and Si@MIPs-CAP (R2 = 0.9999). The adsorption isotherm of Si@MIPs-CAP was well represented by the Langmuir model (R2 = 0.9991), while the Freundlich isotherm model (R2 = 0.9998) provided the best fit for MIPs-CAP. The maximum monolayer adsorption capacities, Qmax, for Si@MIPs-CAP (32.26 mg g−1) were higher than the Qmax for Si@NIPs-CAP (29.6 mg g−1). These results suggested that the silica-grafted molecularly imprinted polymers can be employed as a potential water-compatible adsorbent for the selective adsorption and removal of CAP from aqueous phase. (Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Environmental Chemical Engineering
volume
8
issue
5
article number
103981
publisher
Elsevier
external identifiers
  • scopus:85090923913
ISSN
2213-3437
DOI
10.1016/j.jece.2020.103981
language
English
LU publication?
yes
id
ab609997-41ba-45dd-b56b-65a255209d1b
date added to LUP
2020-08-09 17:07:25
date last changed
2022-04-19 00:02:40
@article{ab609997-41ba-45dd-b56b-65a255209d1b,
  abstract     = {{This research investigated the liquid-phase removal of chloramphenicol (CAP), an emerging contaminant using molecularly imprinted polymers (MIPs). CAP adsorption profiles, equilibrium, and kinetics were analysed. The adsorption performance was compared between MIPs and non-imprinted polymers (NIPs), both with silica or without silica grafting. The imprinting factor (IF) values for the Si@MIPs-CAP were significantly higher than the IF values for MIPs-CAP adsorbent at pH 8. The kinetics of CAP adsorption was fitted to pseudo-second-order kinetics models for MIPs-CAP (R2 = 0.9998) and Si@MIPs-CAP (R2 = 0.9999). The adsorption isotherm of Si@MIPs-CAP was well represented by the Langmuir model (R2 = 0.9991), while the Freundlich isotherm model (R2 = 0.9998) provided the best fit for MIPs-CAP. The maximum monolayer adsorption capacities, Qmax, for Si@MIPs-CAP (32.26 mg g−1) were higher than the Qmax for Si@NIPs-CAP (29.6 mg g−1). These results suggested that the silica-grafted molecularly imprinted polymers can be employed as a potential water-compatible adsorbent for the selective adsorption and removal of CAP from aqueous phase.}},
  author       = {{Mohamed Idris, Z. and Hameed, B.H. and Ye, Lei and Hajizadeh, Solmaz and Mattiasson, Bo and Mohd Din, A.T.}},
  issn         = {{2213-3437}},
  language     = {{eng}},
  number       = {{5}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Environmental Chemical Engineering}},
  title        = {{Amino-functionalised silica-grafted molecularly imprinted polymers for chloramphenicol adsorption}},
  url          = {{http://dx.doi.org/10.1016/j.jece.2020.103981}},
  doi          = {{10.1016/j.jece.2020.103981}},
  volume       = {{8}},
  year         = {{2020}},
}