Amino-functionalised silica-grafted molecularly imprinted polymers for chloramphenicol adsorption
(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:
https://lup.lub.lu.se/record/ab609997-41ba-45dd-b56b-65a255209d1b
- author
- Mohamed Idris, Z. ; Hameed, B.H. ; Ye, Lei LU ; Hajizadeh, Solmaz LU ; Mattiasson, Bo LU and Mohd Din, A.T.
- organization
- publishing date
- 2020
- 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}}, }