Mesoporous silica functionalized with 1-furoyl thiourea urea for Hg(II) adsorption from aqueous media

J Hazard Mater. 2010 Oct 15;182(1-3):197-203. doi: 10.1016/j.jhazmat.2010.06.015. Epub 2010 Jun 9.

Abstract

New organic-inorganic hybrid materials were prepared by covalently anchoring 1-furoyl thiourea on mesoporous silica (SBA-15). By means of various characterization techniques (X-ray diffraction, nitrogen adsorption-desorption, thermogravimetric analysis, and FTIR spectroscopy) it has been established that the organic groups were successfully anchored on the SBA-15 surfaces and the ordering of the inorganic support was preserved during the chemical modifications. The hybrid sorbents exhibited good ability to remove Hg(II) from aqueous solution. Thus, at pH 6, the adsorption capacity of mercury ions reached 0.61 mmol g(-1).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Magnetic Resonance Spectroscopy
  • Mercury / chemistry*
  • Silicon Dioxide / chemistry*
  • Spectrometry, Mass, Electrospray Ionization
  • Spectroscopy, Fourier Transform Infrared
  • Thermogravimetry
  • Thiourea / chemistry*
  • X-Ray Diffraction

Substances

  • Silicon Dioxide
  • Mercury
  • Thiourea