微波水热法制备氧化镁-氧化铜-氧化钙复合材料及其抗菌性能

doi:10.11962/1006-4990.2020-0070

摘要/Abstract

摘要：

以氯化镁、氯化铜、氯化钙为原料,十六烷基三甲基溴化铵（CTAB）为分散剂,采用微波水热法合成了氧化镁-氧化铜-氧化钙复合材料;通过X射线衍射（XRD）、扫描电镜（SEM）、氮吸附（BET）等表征手段对样品进行了结构表征;利用最小抑菌浓度（MIC）和菌落计数法对样品的抗菌性能进行了研究。实验结果表明：氧化镁-氧化铜-氧化钙复合物具有纳米片状结构,制备的MgO_0.7CuO_0.1CaO_0.2比表面积为66.789 m²/g,平均孔径为54.117 nm,孔容为0.904 cm³/（g·nm）;MgO_0.7CuO_0.1CaO_0.2在质量浓度为500 μg/mL条件下展现出良好的抗菌性能,在质量浓度为600 μg/mL以上时抑菌率达到99.9%以上。

关键词: 氧化镁, 复合材料, 微波水热, 抗菌

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 MgO_0.7CuO_0.1CaO_0.2 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）.MgO_0.7CuO_0.1CaO_0.2 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

中图分类号:

TQ132.2

田其哲,叶俊伟,宁桂玲. 微波水热法制备氧化镁-氧化铜-氧化钙复合材料及其抗菌性能[J]. 无机盐工业, 2020, 52(12): 12-16.

Tian Qizhe,Ye Junwei,Ning Guiling. Preparation and antibacterial properties of MgO-CuO-CaO composite by microwave hydrothermal method[J]. Inorganic Chemicals Industry, 2020, 52(12): 12-16.

图/表 6

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