Mesoporous silica functionalized with 1-furoyl thiourea urea for Hg(II) adsorption from aqueous media.
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).
Mureseanu
Mihaela
M
Faculty of Chemistry, University of Craiova, 165 Calea Bucuresti, 200144 Craiova, Romania.
Reiss
Aurora
A
Cioatera
Nicoleta
N
Trandafir
Ion
I
Hulea
Vasile
V
D000327:Adsorption; D009682:Magnetic Resonance Spectroscopy; D008628:Mercury / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D013890:Thiourea / Q000737:chemistry*; D014961:X-Ray Diffraction
D012822:Silicon Dioxide; D008628:Mercury; D013890:Thiourea