Inorganic Chemicals Industry ›› 2020, Vol. 52 ›› Issue (12): 12-16.doi: 10.11962/1006-4990.2020-0070

• Research & Development • Previous Articles     Next Articles

Preparation and antibacterial properties of MgO-CuO-CaO composite by microwave hydrothermal method

Tian Qizhe1,Ye Junwei1,2(),Ning Guiling1,2()   

  1. 1. State Key Laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116024,China
    2. Engineering Laboratory of Boric and Magnesium Functional Material Preparative and Applied Technology of Liaoning Province
  • Received:2020-06-27 Online:2020-12-10 Published:2020-12-15
  • Contact: Ye Junwei,Ning Guiling E-mail:junweiye@dlut.edu.cn;ninggl@dlut.edu.cn

Abstract:

MgO-CuO-CaO composites were synthesized by microwave hydrothermal using MgCl2·6H2O,CuCl2·2H2O and CaCl2 as raw materials and CTAB as dispersant.The structures of the samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),nitrogen adsorption(BET) and other characterization methods.The minimal inhibitory concentration(MIC) and colony count method were used to test the antibacterial properties of the samples.The results showed that MgO-CuO-CaO composites were nanoflake structure.The prepared MgO0.7CuO0.1CaO0.2 had a specific surface area of 66.789 m2/g,an average pore diameter of 54.117 nm and a pore volume of 0.904 cm3/(g·nm).MgO0.7CuO0.1CaO0.2 showed excellent antibacterial properties at the concentration of 500 μg/mL,and the antibacterial rate reached more than 99.9% at the concentration of 600 μg/mL.

Key words: magnesium oxide, composite materials, microwave hydrothermal, antibacterial

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