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气溶胶辅助法合成球形氧化镁及其吸附性能研究

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Indexed by:期刊论文

Date of Publication:2021-02-07

Journal:无机盐工业

Volume:52

Issue:1

Page Number:39-43

ISSN No.:1006-4990

Key Words:球形氧化镁;气溶胶;吸附

Abstract:以氯化镁为镁源,尿素为沉淀剂,采用气溶胶辅助法制备了球形氧化镁.利用X射线衍射(XRD)、扫描电镜(SEM)、红外光谱(IR)和氮气吸附-脱附等技术手段对不同反应温度下制备的前驱体和氧化镁样品进行了表征.实验结果表明:制备的球形氧化镁比表面积为36m2/g,平均孔径为34nm,总孔容为0.26cm3/g;其对刚果红的吸附符合伪二级动力学,且5min内达到吸附平衡;吸附等温线符合Langmuir模型,饱和吸附量为764.91mg/g.

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