中文摘要：

以盐湖氯化镁、碳酸钠、氨水等为原料,采用水热法制备了孔径分布在5nm~10nm之间,材料比表面积达到424.42m2/g的介孔氧化镁。通过X-射线衍射仪（XRD）、扫描电子显微镜（SEM）、同步热分析仪（TGDTA）以及抗菌性能测试等方法,探讨了反应时间、沉淀剂、分散剂和反应物浓度等因素对产物形貌和结构的影响。以大肠杆菌、金黄色葡萄球菌为测试菌株,用最小抑菌浓度（MIC）、24h抑菌效果图等方法研究了球状、片状和块状等不同形貌氧化镁的抗菌性能,建立了纳米氧化镁形貌与抗菌性能的关系。

英文摘要：

The mesoporous magnesium oxide were synthesized by the hydrothermal method using Salt lake magnesium chloride,sodium carbonate and ammonia as raw materials. The specific surface area was as high as 424. 42 m2/ g and pore size distribution ranged from 5 nm to 10 nm. The effects of calcination time,precipitating agent,dispersants and reactant concentration on the morphology and structural of magnesium oxide were investigated and detected by X-Ray Diffraction（ XRD）,Scanning Electron Microscope（ SEM）,Thermal Gravity-Differential Thermal Analysis（ TG-DTA） and the antibacterial performance test. The antibacterial properties of spherical,flake and block morphology magnesium oxide were studied by the minima inhibitory concentration（ MIC） and 24 h bacteriostatic effect diagrams with Escherichia Coli,Staphylococcus aureus as target strains and the relevance of morphology and antibacterial properties was determined.