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AuthorIdris, Z. Mohamed
AuthorHameed, B.H.
AuthorYe, L.
AuthorHajizadeh, S.
AuthorMattiasson, B.
AuthorMohd Din, A.T.
Available date2022-03-23T06:05:26Z
Publication Date2020
Publication NameJournal of Environmental Chemical Engineering
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.jece.2020.103981
URIhttp://hdl.handle.net/10576/28521
AbstractThis 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.
SponsorThis work was partly supported by the World Bank Robert S. McNamara Fellowship Program and the Ministry of Higher Education Malaysia through the Fundamental Research Grant Scheme ( 6071330 ). The authors are grateful to the Division of Pure and Applied Biochemistry, Lund University, Sweden and to School of Chemical Engineering, Universiti Sains Malaysia for supporting and providing laboratory facilities.
Languageen
PublisherElsevier Ltd
SubjectAdsorption
Chloramphenicol
Emerging contaminant
Molecularly imprinted polymer
Precipitation polymerisation
TitleAmino-functionalised silica-grafted molecularly imprinted polymers for chloramphenicol adsorption
TypeArticle
Issue Number5
Volume Number8
dc.accessType Abstract Only


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