MIPs logo MIPdatabase      MIP2024 Conference banner, website is now open, register on site for important updates   
Custom Search
Reference type: Journal
Authors: Fan HT, Sun XT, Li WX
Article Title: Sol-gel derived ion-imprinted silica-supported organic-inorganic hybrid sorbent for selective removal of lead(II) from aqueous solution.
Publication date: 2014
Journal: Journal of Sol-Gel Science and Technology
Volume: 72
Issue: (1)
Page numbers: 144-155.
DOI: 10.1007/s10971-014-3436-z

Abstract: The current paper presents a novel Pb(II) ion-imprinted silica-supported organic-inorganic hybrid sorbent functionalized with Schiff base by coupling a surface imprinting technique with a sol-gel process for the selective removal of Pb(II) ions from aqueous solution. Fourier transmission infrared spectroscopy, scanning electron microscopy, N2 adsorption-desorption isotherms and thermogravimetric analysis were used to characterize the Pb(II)-imprinted hybrid sorbent. The adsorption equilibrium was finished with 30 min. The experiment value of maximum adsorption capacity was found to be 54.9 mg g-1. There were not significantly influence on the adsorption capacity of Pb(II) in the range of pH 3.5-6.5. The equilibrium data were fitted very well to the Langmuir isotherm model and pseudo-first-order kinetics model. Under competitive adsorption conditions, the Pb(II)-imprinted hybrid sorbent was 3.09, 4.73, 3.34 and 4.96 times more selective than the corresponding non-imprinted sorbent for the systems of Pb(II)/Cu(II), Pb(II)/Cd(II), Pb(II)/Ni(II) and Pb(II)/Zn(II), respectively. The thermodynamic results demonstrated that the adsorption of Pb(II) onto the Pb(II)-imprinted hybrid sorbent took place by a spontaneous and endothermic process with further increase in the degree of freedom at the solid-solution interface
Template and target information: lead ion, Pb(II)
Author keywords: lead, Ion imprinted, Schiff base, Hybrid, sol-gel


  SMI logo cufflinks  Father Periodic table shirt    mug featuring the element Lead






 

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