MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Li WM, He R, Tan L, Xu SY, Kang CC, Wei CH, Tang YW
Article Title: One-step synthesis of periodic ion imprinted mesoporous silica particles for highly specific removal of Cd2+ from mine wastewater.
Publication date: 2016
Journal: Journal of Sol-Gel Science and Technology
Volume: 78
Issue: (3)
Page numbers: 632-640.
DOI: 10.1007/s10971-016-3987-2

Abstract: Combining the advantages of MCM-41 mesoporous materials and molecularly imprinted polymers, we designed and synthesized periodic Cd2+ imprinted mesoporous silica (Cd-IMS) through a one-step hydrothermal process. Bifunctional ligand monomers [3-(γ-aminoethylamino)-propyltrimethoxysilane] and template ions (Cd2+) were immobilized in the hexagonal channel walls of MCM-41, prior to polymerization. The resultant Cd-IMS revealed a highly ordered hexagonal structure, nano-sized pore diameters and wall thicknesses, and a large surface area. In addition, this material revealed good binding properties, including a large adsorption capacity (saturation adsorption capacity of 40 mg/g), highly specific recognition ability (maximum imprinting factor of 3.0), and rapid adsorption kinetics (equilibration within 5 min). Selectivity coefficients [KCd-IMS (Cd2+)/KCd-IMS (Cu2+ or Pb2+)] of the Cd-IMS material demonstrated values of up to 2.29 and 3.08, respectively. Following six cycles of Cd2+ adsorption, the recovery of Cd-IMS remained stable at around 89.3 %, proving its recycling potential. Furthermore, Cd-IMS was successfully applied to selectively separate and remove Cd2+ from mineral wastewater samples, with high Cd2+ recovery rates. This suggests that the routine recovery of Cd2+ from wastewater may be realized in an economically viable manner
Template and target information: cadmium ion, Cd(II)
Author keywords: Ion imprinted mesoporous silica MCM-41 Cadmium(II) Adsorption Wastewater treatment


  mipdatabase.com logo imprinters do it in bulk shirt  Science Teacher peptide mug    mug featuring the element Cadmium

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