title: Mesoporous silica functionalized with 1-furoyl thiourea urea for Hg(II) adsorption from aqueous media.
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).
authors.affiliation: Faculty of Chemistry, University of Craiova, 165 Calea Bucuresti, 200144 Craiova, Romania.
authors.forename: Mihaela
authors.initials: M
authors.lastname: Mureseanu
authors.forename: Aurora
authors.initials: A
authors.lastname: Reiss
authors.forename: Nicoleta
authors.initials: N
authors.lastname: Cioatera
authors.forename: Ion
authors.initials: I
authors.lastname: Trandafir
authors.forename: Vasile
authors.initials: V
authors.lastname: Hulea
mesh_terms: 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
chemical_list: D012822:Silicon Dioxide; D008628:Mercury; D013890:Thiourea