MIPs logo MIPdatabase      MIP2020 Conference logo Use this space
Custom Search
Reference type: Journal
Authors: Fan LL, Luo CN, Lv Z, Lu FG, Qiu HM
Article Title: Removal of Ag+ from water environment using a novel magnetic thiourea-chitosan imprinted Ag+.
Publication date: 2011
Journal: Journal of Hazardous Materials
Volume: 194
Issue: (1)
Page numbers: 193-201.
DOI: 10.1016/j.jhazmat.2011.07.080
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0304389411009617

Abstract: A novel, thiourea-chitosan coating on the surface of magnetite (Fe3O4) (Ag-TCM) was successfully synthesized using Ag(I) as imprinted ions for adsorption and removal of Ag(I) ions from aqueous solutions. The thermal stability, chemical structure and magnetic property of the Ag-TCM were characterized by the scanning electron microscope (SEM), Fourier transform infrared spectrometer (FT-IR) and vibrating sample magnetometer (VSM), respectively. Batch adsorption experiments were performed to evaluate the adsorption conditions, selectivity and reusability. The results showed that the maximum adsorption capacity was 4.93 mmol/g, observed at pH 5 and temperature 30 C. Equilibrium adsorption was achieved within 50 min. The kinetic data, obtained at the optimum pH 5, could be fitted with a pseudo-second order equation. Adsorption process could be well described by Langmuir adsorption isotherms and the maximum adsorption capacity calculated from Langmuir equation was 5.29 mmol/g. The selectivity coefficient of Ag(I) ions and other metal cations onto Ag-TCM indicated an overall preference for Ag(I) ions, which was much higher than non-imprinted thiourea-chitosan beads. Moreover, the sorbent was stable and easily recovered, the adsorption capacity was about 90% of the initial saturation adsorption capacity after being used five times
Template and target information: silver ions, Ag(I)
Author keywords: Thiourea-chitosan, Magnetite, Langmuir, adsorption, Ag+

  Live and Let MIP spoof movie poster customisable greetings card  Chemistry peptide mug    mug featuring the element Silver

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