title: Synthesis and properties of bisphenol A molecular imprinted particle for selective recognition of BPA from water.
abstract: Molecularly imprinted particle for bisphenol A (BPA-MIP) was prepared using the surface molecular imprinting technique with a sol-gel process on the surface of silica nanoparticles. The dosages of diethylenetriaminepentaacetic acid (DTPA) as a functional monomer and teraethyl orthosilicate (TEOS) as a cross-linker were optimized, respectively. The prepared BPA-MIP was characterized by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), Fourier transform infrared spectrometer (FTIR), thermogravimetric analysis (TGA), and a standard Brunauer-Emett-Teller (BET) analysis. Moreover, the proper binding and selective recognition ability were also investigated by a single batch binding experiment. The equilibrium data fitted well to the pseudo-second-order kinetic and the Langmuir model for BPA binding onto BPA-MIP, respectively. The saturate binding capacity of BPA-MIP was found to be 30.26 μmol g(-1), which was three times higher than that of BPA non-molecular imprinted particle (BPA-NIP). The satisfactory results demonstrated that the obtained BPA-MIP showed an appreciable binding specificity toward BPA than similar structural compounds in water phase. The BPA-MIP could serve as an efficient selective material for determining or removing BPA from water environment.
authors.affiliation: Key Laboratory of Superlight Materials & Surface Technology, Ministry of Education, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, PR China.
authors.forename: Yueming
authors.initials: Y
authors.lastname: Ren
authors.forename: Weiqing
authors.initials: W
authors.lastname: Ma
authors.forename: Jun
authors.initials: J
authors.lastname: Ma
authors.forename: Qing
authors.initials: Q
authors.lastname: Wen
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Fangbo
authors.initials: F
authors.lastname: Zhao
mesh_terms: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors / Q000302:isolation & purification*; D054802:Molecular Imprinting / Q000379:methods; D053758:Nanoparticles / Q000737:chemistry; D044367:Phase Transition; D010636:Phenols / Q000302:isolation & purification*; D012822:Silicon Dioxide / Q000737:chemistry; D014867:Water / Q000737:chemistry; D000098826:Bisphenol A Compounds
chemical_list: D001559:Benzhydryl Compounds; D052244:Endocrine Disruptors; D010636:Phenols; D012822:Silicon Dioxide; D014867:Water; C006780:bisphenol A; D000098826:Bisphenol A Compounds