MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Monier M, Shafik AL, Abdel-Latif DA
Article Title: Synthesis of azo-functionalized ion-imprinted polymeric resin for selective extraction of nickel(II) ions.
Publication date: 2018
Journal: Polymer International
Volume: 67
Issue: (8)
Page numbers: 1035-1045.
DOI: 10.1002/pi.5609

Abstract: The work presented involved the fabrication and evaluation of an ion-imprinted azo-functionalized phenolic resin for selective extraction of Ni2+ ions from aqueous media. The azo-containing ligand was first synthesized by coupling of a p-aminophenol diazonium salt with resorcinol. The ligand was coordinated with Ni2+ ion template before condensation polymerization with formaldehyde and resorcinol was performed. The Ni2+ ions were extracted from the crosslinked resin matrix to finally afford the Ni2+ ion-imprinted Ni-PARF adsorbent. The synthetic steps were extensively investigated using elemental analysis and Fourier transform infrared, NMR and energy-dispersive X-ray spectroscopies. Also, the surface morphologies along with the surface areas of the adsorbent resin were evaluated using scanning electron microscopy and Brunauer-Emmett-Teller techniques, respectively. Batch experiments indicated that the pseudo-second-order kinetic equation provided the best fit with the experimentally obtained kinetic data and equilibrium was reached after 40 min. The isotherm studies were also in a good fit with the Langmuir model and the maximum adsorption capacities of Ni2+ ions with respect to both Ni-PARF and control non-imprinted C-PARF adsorbents were around 260 and 100 mg g-1, respectively. In the presence of Co2+, Cu2+, Zn2+ and Pb2+ as competing coexisting ions, the relative selectivity coefficients of Ni-PARF for Ni2+ were, respectively, 84.91, 44.97, 30.41 and 32.20. Regeneration experiments indicated that after eight adsorption/desorption cycles, the Ni-PARF adsorbent still maintained around 97% of its initial efficiency. 2018 Society of Chemical Industry
Template and target information: nickel ion, Ni(II)
Author keywords: resorcinol, azo dye complex, nickel(II) ions, Ion-imprinting


  MI cryptic logo tote bag  SMI logo mug    mug featuring the element Nickel

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:



Mickey Mouse 90th Anniversary banner