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Abstract: A novel imprinted ZnO/magnetic fly-ash photocatalyst (imprinted ZnO/MFA) was synthesized by the imprinting technique based on danofloxacin mesylate (DM) as the template molecule, zinc acetate as the reactive precursor, magnetic fly-ash (MFA) as the matrix material. The as-prepared imprinted ZnO/MFA was extensively characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), elemental analysis, UV-vis diffused reflectance spectra (UV-vis) and vibrating sample magnetometer (VSM). The results indicated that imprinted ZnO/MFA possessed like-spherical structure, superior magnetic property (M s = 30.31 emu/g), the average diameter of imprinted ZnO/MFA was approximately 80 μm. Moreover, imprinted ZnO/MFA was proved to exhibit higher photocatalytic efficiency than other photocatalysts and the degradation rate of degradation of DM in 120 min under the ultraviolet light irradiation was 89.64%. In addition, compared with ZnO/magnetic fly-ash photocatalyst (ZnO/MFA), imprinted ZnO/MFA showed good selectivity for photodegradation of DM.
Template and target information: danofloxacin mesylate, DM
Author keywords: danofloxacin mesylate, Imprinting Technique, magnetic fly-ash, Selective photodegradation, ZnO