余谟鑫,朱博文,张书海,蒯乐,韦一,王晓婷,张晨,李忠

• 1:安徽工业大学化学与化工学院
• 2:中钢天源股份有限公司
• 3:马钢集团股份有限公司
• 4:华南理工大学化学与化工学院

摘要(Abstract)：

针对含Co~(2+)重金属离子废水的处理和粉末状生物质多孔炭难以回收的问题，提出以核桃青皮为原料,通过水热法制备炭前驱体，加入Fe(NO_3)_3·9H_2O浸渍后，热解制备磁性生物质多孔炭(MBC_x)。采用扫描电子显微镜、氮气吸附-脱附、综合物性系统和X射线光电子能谱等手段对MBC_x进行表征，并考察了MBC_x对废水中Co~(2+)的吸附性能。结果表明，当前驱体与Fe(NO_3)_3·9H_2O质量比为15:9时，所得MBC9的比表面积为249 m~2·g~(-1)，平均孔径为4.45 nm,MBC_9表面的O、N和Fe元素的摩尔分数分别为14.04%、3.17%和1.28%。Langmuir吸附等温式能很好地描述MBC_9对Co~(2+)的吸附过程，最大理论吸附量为130.38mg·g~(-1)。此外，该磁性炭材料可在使用后通过磁力作用从溶液中分离回收。

关键词(KeyWords)： 核桃青皮;生物质炭;磁性;二价钴离子;吸附

Abstract:

Keywords:

基金项目(Foundation): 中国博士后科学基金(2019M652173);; 安徽高校自然科学研究项目(KJ2021A0399);; 安徽省博士后科研项目(2021B547)

作者(Author): 余谟鑫,朱博文,张书海,蒯乐,韦一,王晓婷,张晨,李忠

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