Molecularly imprinted N-doped TiO2 photocatalysts for the selective degradation of o-phenylphenol fungicide from water

被引:62
作者
Fiorenza, Roberto [1 ,2 ]
Di Mauro, Alessandro [1 ]
Cantarella, Maria [1 ]
Gulino, Antonino [2 ]
Spitaleri, Luca [2 ]
Privitera, Vittorio [1 ]
Impellizzeri, Giuliana [1 ]
机构
[1] CNR IMM, Via S Sofia 64, I-95123 Catania, Italy
[2] Univ Catania, Dept Chem, Viale Andrea Doria 6, I-95125 Catania, Italy
关键词
Photocatalysis; TiO2; Wastewater treatment; Fungicide; Molecular imprinting; Nitrogen; PHOTODEGRADATION; ZNO; CONTAMINANTS; OXIDATION; FRAMEWORK; UV;
D O I
10.1016/j.mssp.2020.105019
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In this work it is investigated the photodegradation of a widely used fungicide, i.e. the orto-phenylphenol (o-p. p.), through molecularly imprinted N-doped TiO2 photocatalysts. The materials have been prepared by the solgel technique with an easy one-pot synthesis method. The structural, textural, and surface properties of the samples were evaluated by scanning electron microscopy (SEM), N-2 adsorption-desorption measurements, X-ray photoelectron (XPS) and UV-vis diffuse reflectance spectroscopies (DRS), whereas the Fourier transform infrared spectroscopy (FTIR) was performed to check the effectiveness of the molecular imprinting process. The synergistic mechanism between the molecular imprinting (that allow to obtain a selective photodegradation), N-doping (which permits to boost the photoactivity under solar light irradiation), and the photocatalysis leads to obtain selective and efficient photocatalysts for wastewater purification.
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页数:6
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