标题：Modelling and optimization of photocatalytic mineralization of acetaminophen using ZnFe2O4-TiO2 nanocomposite prepared via microwave assisted combustion method
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2019
卷号：10
期号：3
页码：1-8
出版社：University of Mohammed Premier Oujda
摘要：Present work focuses on microwave assisted synthesis of ZnFe2O4-TiO2 nanocomposite
and its application for photocatalytic mineralization of acetaminophen (one of the most
widely used analgesic drugs) in water under visible light illumination. The synthesized
ZnFe2O4-TiO2was characterized using x-ray diffractometry and scanning electron
microscopy.The effects initial concentration of acetaminophen, ZnFe2O4-TiO2dosage,
and irradiation time on photocatalytic mineralization of acetaminophen were
investigated using the central composite design. Photocatalytic mineralization of
acetaminophen using ZnFe2O4-TiO2 was described by a model quadratic equation with
R2
of 0.993 and R2
adjof 0.984. Under the optimized conditions (initial acetaminophen
concentration of 11.2 mg/L, ZnFe2O4-TiO2dosage of 1.0 g/L and irradiation time of 28.7
min), 95.9 % mineralization of acetaminophen was achieved. Experiments were
conducted in order to validate the model. Under the predicted optimized conditions, the
experimental percentage photocatalytic mineralization of acetaminophen was found to
be 95.9 % which is very close to the predicted value of 96.3%.
