title: Preferential catalytic ozonation of p-nitrophenol by molecularly imprinted Fe3O4/SiO2 core-shell magnetic composites.
abstract: Molecularly imprinted Fe(3)O(4)/SiO(2) core-shell magnetic composites (Fe(3)O(4)/SiO(2)-MIP) were successfully prepared via anchoring p-nitrophenol (p-NP) imprinted functional polymers on the surface of amino-modified Fe(3)O(4)/SiO(2) core-shell particles. Synthesized magnetic Fe(3)O(4)/SiO(2)-MIP composites were characterized by X-ray diffraction, scanning electronic microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, and magnetic property measurement. The preferential catalytic ozonation of p-nitrophenol was evaluated in comparison with the competitive reaction in the presence of coexistent phenol. The results showed that the prepared Fe(3)O(4)/SiO(2)-MIP composites exhibit strong adsorption ability due to the strong bonding between p-NP and the molecularly imprinted layer. The Fe(3)O(4)/SiO(2)-MIP demonstrated a preferential catalytic ozonation of p-NP by the recognition ability of the molecularly imprinted layer to the target p-NP. The enhanced catalytic activity using Fe(3)O(4)/SiO(2)-MIP composites could be attributed to the excellent recognition absorption of the MIP layer on the surface of Fe(3)O(4)/SiO(2)-MIP to p-NP.
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn.
authors.forename: Jiannan
authors.initials: J
authors.lastname: Yang
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn.
authors.forename: Shuzhen
authors.initials: S
authors.lastname: Li
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn.
authors.forename: Yibin
authors.initials: Y
authors.lastname: Gong
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
authors.forename: Chun
authors.initials: C
authors.lastname: He
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn.
authors.forename: Qiong
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China.
authors.forename: Jinqing
authors.initials: J
authors.lastname: Wu
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn.
authors.forename: Weichen
authors.initials: W
authors.lastname: Liao
authors.affiliation: Key Laboratory of Technology on Electrochemical Energy Storage and Power Generation in Guangdong Universities, School of Chemistry and Environment, South China Normal University, Guangzhou, 510006, China.
authors.forename: Dong
authors.initials: D
authors.lastname: Shu
authors.affiliation: School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou, 510275, China E-mail: hechun@mail.sysu.edu.cn; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, China.
authors.forename: Shuanghong
authors.initials: S
authors.lastname: Tian
mesh_terms: D002384:Catalysis; D052203:Ferrosoferric Oxide / Q000737:chemistry*; D058185:Magnetite Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D018625:Microscopy, Atomic Force; D009596:Nitrophenols / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*
chemical_list: D058185:Magnetite Nanoparticles; D009596:Nitrophenols; D012822:Silicon Dioxide; D052203:Ferrosoferric Oxide; C024836:4-nitrophenol