title: A novel permanganate-sensitive fluorescent nano-chemosensor assembled with a new 8-hydroxyquinoline-functionalized SBA-15.
abstract: A novel fluorescence nano-chemosensor for MnO(4)(-) anion has been developed by assembly of fluorescent aluminum complex of 8-hydroxyquinoline (8-HQ) within the channels of modiﬁed SBA-15 (SBA-SPS-QAl). The ordered porous structure of SBA-15 is still retained after hybridization by chemosensor material. A remarkable fluorescent quenching of SBA-SPS-QAl was attributed to the effect of MnO(4)(-) anion. The linear detecting range of the hybrid mesoporous chemosensor is 0.16-4.6μmolL(-1) of MnO(4)(-) anion and the lowest detection limit is 0.2ngmL(-1) in the aqueous solution. SBA-SPS-QAl showed a selective and sensitive fluorescent quenching response toward MnO(4)(-) ion in comparison with N(3)(-), NO(3)(-), CN(-), HCO(3)(-), Cl(-), F(-), H(2)PO(4)(-), SO(4)(2-), Cr(2)O(7)(2-), IO(3)(-) and I(-) ions, which was because of the higher stability of its inorganic complex with permanganate anion.
authors.affiliation: Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran. ganjali@khayam.ut.ac.ir
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Ganjali
authors.forename: Vinod Kumar
authors.initials: VK
authors.lastname: Gupta
authors.forename: Morteza
authors.initials: M
authors.lastname: Hosseini
authors.forename: Zahra
authors.initials: Z
authors.lastname: Rafiei-Sarmazdeh
authors.forename: Farnoush
authors.initials: F
authors.lastname: Faridbod
authors.forename: Hassan
authors.initials: H
authors.lastname: Goldooz
authors.forename: Ali Reza
authors.initials: AR
authors.lastname: Badiei
authors.forename: Parviz
authors.initials: P
authors.lastname: Norouzi