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MgFe2O4/CNTs nanocomposite: synthesis, characterization, and photocatalytic activity | ||
International Journal of Industrial Chemistry | ||
دوره 11، شماره 4، اسفند 2020، صفحه 279-294 | ||
نوع مقاله: research article | ||
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-020-00223-z | ||
نویسندگان | ||
Ibrahim F. Waheed1؛ Omer Yasin Thayee Al-Janabi* 2؛ Abdalghany K. Ibrahim1؛ Peter J. S. Foot3؛ Muayad A. S. Alkarawi2؛ Baidaa M. Ali1؛ Faiz M. Al-Abady1 | ||
1Department of Industrial Chemistry, College of Science, Tikrit University, Tikrit, Iraq | ||
2College of Petroleum Processes Engineering, Petroleum and Gas Refining Engineering, Tikrit University, Tikrit, Iraq | ||
3School of Chemical and Pharmaceutical Sciences, Kingston University London, Kingston upon Thames, KT1 2EE, UK | ||
چکیده | ||
Magnesium ferrite is a visible light absorber, and when combined with multiwall carbon nanotubes (MWCNTs), it can lead to low electron–hole recombination rates, thus improving its photocatalytic activity. In this work, a novel MgFe2O4/CNTs nanocomposite catalyst has been synthesized via anchoring MgFe2O4 nanoparticles onto MWCNTs surface by a sol–gel and microwave-assisted route. The prepared catalyst was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning and transmission electron microscopy, energy-dispersive X-ray analysis and vibrating scanning magnetometry. MgFe2O4 nanoparticles showed a cubic inverse spinel ferrite structure, while MgFe2O4/CNTs nanohybrids showed combinations of both structures. Morphology studies including Brunauer–Emmett–Teller (BET) analysis confirmed a 40 m2 g−1 specific surface area with narrow mesoporous size distribution for the MgFe2O4/CNTs nanocomposite. The photocatalytic performance of the new catalyst was assessed by photodegradation of methylene blue (MB). The experimental results demonstrated that MgFe2O4/CNTs exhibited strong photocatalytic activity, catalysing the photooxidation of about 98% of MB in 25 min under sunlight. | ||
کلیدواژهها | ||
MgFe2O4/CNTs؛ Magnetic properties؛ Photocatalysis؛ MB degradation | ||
آمار تعداد مشاهده مقاله: 62 |