A comprehensive study on the application of FeNi3@SiO2@ZnO magnetic nanocomposites as a novel photo-catalyst for degradation of tamoxifen in the presence of simulated sunlight

被引:65
作者
Nasseh, Negin [1 ]
Al-Musawi, Tariq J. [2 ]
Miri, Mohammad Reza [3 ]
Rodriguez-Couto, Susana [4 ]
Panahi, Ayat Hossein [5 ]
机构
[1] Birjand Univ Med Sci, Fac Hlth, Social Determinants Hlth Res Ctr, Environm Hlth Engn Dept, Birjand, Iran
[2] Isra Univ, Fac Engn, Dept Civil Engn, Amman, Jordan
[3] Birjand Univ Med Sci, Fac Hlth, Social Determinants Hlth Res Ctr, Dept Hlth Educ & Hlth Promot, Birjand, Iran
[4] Ikerbasque, Basque Fdn Sci, Maria Diaz de Haro 3, Bilbao 48013, Spain
[5] Birjand Univ Med Sci, Social Determinants Hlth Res Ctr, Birjand, Iran
关键词
FeNi3@SiO2@ZnO nanocomposite; Photo-catalytic reactions; Tamoxifen degradation; Kinetics; By-products; HETEROGENEOUS PHOTOCATALYTIC DEGRADATION; ZNO NANOPARTICLES; REMOVAL; WATER; OXIDATION; KINETICS; PHARMACEUTICALS; PARAMETERS; EFFICIENT; DRUGS;
D O I
10.1016/j.envpol.2020.114127
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Pharmaceutical compounds at trace concentrations are found in the environment, especially in drinking water and food, posing significant negative effects on humans as well as on animals. This paper aimed to examine the diagnostic catalytic properties and efficacy of a novel synthesized photocatalyst, namely FeNi3@SiO2@ZnO magnetic nanocomposite, for the removal of tamoxifen (TMX) from wastewater under simulated sunlight. According to the results, it was found that TMX was completely degraded operating under optimized conditions (i.e. pH = 7, catalyst dose = 0.01 g/L, initial TMX concentration = 20 mg/L and reaction time = 60 min). The reaction kinetics of TMX degradation followed a pseudo-first order kinetics model. The final by-products from the TMX photodegradation were water, carbon dioxide, acetic acid, nitroacetic acid methyl ester, 2-methyl-2-pentenal, and 4-methyl-2-pentanol. In addition, the synthesized photocatalyst could successfully performed five consecutive photodegradation cycles. The obtained results revealed that the synthesized FeNi3@SiO2@ZnO magnetic nanocomposite holds a great potential to be applied as a photocatalyst for the degradation of TMX on an industrial scale. (C) 2020 Elsevier Ltd. All rights reserved.
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页数:11
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