Eco-friendly green synthesis of novel magnetic Fe₃O₄/SiO₂/ZnO-Pr₆O₁₁ nanocomposites for photocatalytic degradation of organic pollutant

Mohammad Ali Ebrahimzadeh¹，Sobhan Mortazavi-Derazkola¹，Mohammad Ali Zazouli²

1. Pharmaceutical Sciences Research Center,Hemoglobinopathy Institute and Department of Medicinal Chemistry,School of Pharmacy,Mazandaran University of Medical Science2. Department of Environmental Health Engineering,Health Science Research Center,Faculty of Health,Mazandaran University of Medical Science

摘 要：This study reports the successful so nochemical synthesis of novel Fe₃O₄/SiO₂/ZnO-Pr₆O₁₁(Fe/Si/Zn-Pr₆O₁₁) nanocomposites using fructose as a green capping agent.The influence of various parameters containing capping agent,power and time of ultrasound irradiation was investigated to reach optimum morphology and size conditions.The products obtained were characterized by transmission electron microscopy（TEM）,UV/Vis diffuse reflectance spectroscopy（DRS）,Fourier transform infrared spectra（FT-IR）,vibration sample magnetometer（VSM）,scanning electron microscopy（SEM）,energy dispersive X-ray microanalysis（EDS） and X-ray diffraction（XRD）.The Fe₃O₄/SiO₂/ZnO-Pr₆O₁₁ nanocomposites display remarkably enhanced photocatalytic activity towards rhodamine b degradation（89.6%）and Congo red（84.7%） under UV irradiation compared with the other products.The results illustrate that the photocatalytic efficiency of magnetic nanocomposites is very much higher than pure Pr₆O₁₁nanostructures.Magnetic photocatalyst still has good stability after five successive runs.So,these recyclable nanocomposites can play a role in the treatment of both industrial and domestic contaminated water.

关键词：