以鸡蛋壳为钙源,硬脂酸钠为模板剂,采用直接沉淀及高温焙烧技术制备了多孔碳酸钙球形微粒,并对制得的多孔碳酸钙球形微粒进行了表征。研究了优化条件下制备得到的多孔碳酸钙对阿莫西林的吸附性能。结果表明,在400℃煅烧60min所得产品的平均孔径为16.20nm,比表面积为114.87m2/g;在25mL 0.1g/L阿莫西林溶液,多孔碳酸钙用量为0.1g,反应温度为室温,反应时间为60min条件下,多孔碳酸钙对阿莫西林的平均吸附量为4.45mg/g,吸附为介孔吸附,具有较佳的吸附效果。
Porous spherical calcium carbonate microparticles were successfully prepared by direct precipitation and high temperature roasting technologies,used eggshell as the calcium source,and sodium stearate as the template agent.The adsorption properties of porous calcium carbonate were studied using 0.1g as-prepared CaCO3 in 25mL 0.1g/L amoxicillin solution for reacting 60min at room temperature.The results showed that CaCO3 prepared at 400℃ for calcining 60min exhibited the excellent performance for amoxicillin adsorption with a adsorption capacity of 4.45mg/g.The average pore size of as-prepared CaCO3 was 16.20nm and its specific surface area was 114.87m2/g.In addtion,the results indicated that the adsorption of porous calcium carbonate was mesoporous adsorption.
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基金资助
四川省教育厅项目(16ZB0361);四川文理学院大学生科研项目(X2017Z010,X2017Z011);大学生创新创业训练计划项目(S201910644003)
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