title: Mixed anionic surfactant-templated mesoporous silica nanoparticles for fluorescence detection of Fe(3.).
abstract: This work demonstrates a novel method for the synthesis of large pore mesoporous silica nanoparticles (MSNs) with a pore diameter of 10.3 nm and a particle diameter of ∼50 nm based on the incorporation of mixed anionic surfactants sodium dodecyl benzene sulfonate (SDBS) and sodium dodecyl sulphate (SDS) as the template in the synthesis process. The dispersity, morphology, pore structure and size of mesoporous nanoparticles were adjusted by changing the molar ratio of two anionic surfactants, the concentration of the co-structure-directing agent (3-aminopropyltrimethoxysilane) and the reaction temperature. The results of synthesis experiments suggested that the formation of large pore MSNs involved a nucleation and growth process. MSNs were post-grafted with a Schiff base moiety for fluorescence sensing of Fe(3+) in water. The applicability of functionalized MSNs was demonstrated by selective fluorescence detection of Fe(3+) in aqueous media.
authors.affiliation: Department of Petroleum and Chemical Engineering, Dalian University of Technology, 2 Dagong Road, New District of Liaodong Bay, Panjin 124221, China. gaifangyuan@dlut.edu.cn and Division of Materials Science, Luleå University of Technology, SE-97187 Luleå, Sweden.
authors.forename: Fangyuan
authors.initials: F
authors.lastname: Gai
authors.affiliation: Chemical & Materials Engineering Department, University of Nevada at Reno, Reno, NV 89557, USA.
authors.forename: Tianlei
authors.initials: T
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
authors.forename: Guang
authors.initials: G
authors.lastname: Chu
authors.affiliation: Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, Sichuan 621900, People's Republic of China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
authors.forename: Yunling
authors.initials: Y
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China.
authors.forename: Qisheng
authors.initials: Q
authors.lastname: Huo
authors.affiliation: Division of Materials Science, Luleå University of Technology, SE-97187 Luleå, Sweden.
authors.forename: Farid
authors.initials: F
authors.lastname: Akhtar