title: A Novel Naphthalene-Immobilized Nanoporous SBA-15 as a Highly Selective Optical Sensor for Detection of Fe(3+) in Water.
abstract: A novel organic-inorganic hybrid optical sensor (SBA-NCO) was designed and synthesized through immobilization of isocyanatopropyl-triethoxysilane and 1-amino-naphthalene onto the surface of SBA-15 by post-grafting method. The characterization of materials using XRD, TEM, N2 adsorption-desorption, and FT-IR techniques confirmed the successful attachment of organic moieties and preserving original structure of SBA-15 after modification step. Fluorescence experiments demonstrated that SBA-NCO was a highly selective optical sensor for the detection of Fe(3+) directly in water over a wide range of metal cations including Na(+), Mg(2+), Al(3+), K(+), Ca(2+), Cr(3+), Mn(2+), Fe(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), Hg(2+), and Pb(2+) in a wide pH values.
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Karimi
authors.affiliation: School of Chemistry, College of Science, University of Tehran, Tehran, Iran. abadiei@khayam.ut.ac.ir.|Nanobiomedicine Center of Excellence, Nanoscience and Nanotechnology Research Center, University of Tehran, Tehran, Iran. abadiei@khayam.ut.ac.ir.
authors.forename: Alireza
authors.initials: A
authors.lastname: Badiei
authors.affiliation: Department of Chemistry, Faculty of Science, Alzahra University, Tehran, Iran.
authors.forename: Ghodsi Mohammadi
authors.initials: GM
authors.lastname: Ziarani
mesh_terms: D065966:Absorption, Physicochemical; D001665:Binding Sites; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D005456:Fluorescent Dyes / Q000737:chemistry; D007501:Iron / Q000032:analysis* / Q000737:chemistry; D058608:Nanopores; D009281:Naphthalenes / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D014867:Water / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D009281:Naphthalenes; C509969:SBA-15; D012821:Silanes; D014867:Water; C031721:naphthalene; D012822:Silicon Dioxide; D007501:Iron
keywords: Fe3+; Fluorescence; Nanoporous silica; Naphthalene; Optical sensor; SBA-15