以ZIF-8为模板的Cu-Zn@C制备与吸附性能-中国粉体技术

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以ZIF-8为模板的Cu-Zn@C制备与吸附性能
Preparation and adsorption properties of Cu-Zn@C with ZIF-8 template

朱玉琦¹，陈凯伟¹，张佳莉¹，陈九玉²，杨毅¹

(1. 南京理工大学环境与生物工程学院，江苏南京 210094; 2. 常州大学石油工程学院，江苏常州 213164)

DOI:10.13732/j.issn.1008-5548.2022.03.016

收稿日期： 2021-11-17，修回日期：2021-12-15，在线出版时间：2022-05-05。

基金项目：国家自然科学基金项目，编号：11805101、51908240；江苏省自然科学基金项目，编号：BK20181064；中央高校基本科研业务费专项资金项目，编号：30921013110；江苏省凹土重点实验室开放课题项目，编号：HPK202001；江苏省大气环境监测与污染控制高技术研究重点实验室开放课题项目，编号：KHK2004。

第一作者简介：朱玉琦(2001—)，男，研究方向为环境功能材料。E-mail：1023185283@qq.com。

通信作者简介：杨毅(1973—)，男，研究员，博士，博士生导师，研究方向为环境功能材料。E-mail：yangyi@njust.edu.cn。

摘要：为了提高材料对水体中放射性碘离子的吸附性能，以双金属Cu-Zn ZIFs为前驱体，煅烧制备金属铜掺杂多孔碳(Cu-Zn@C)复合材料，利用SEM、 XRD等方法对材料进行表征。结果表明：Cu的引入不会破坏ZIF-8的结构，经高温碳化后，材料的形貌无明显变化；Cu的引入有利于提高多孔碳材料对碘离子的吸附性能；酸性条件有利于Cu-Zn@C对碘离子的吸附，在pH=3时，吸附容量达到230 mg/g;在大量干扰离子存在时Cu-Zn@C仍能对碘离子具有较高的吸附容量。

关键词：类沸石咪唑骨架；多孔碳；碘离子；吸附

Abstract：In order to improve the adsorption performance of the materials on radioactive iodide ions in water, metal-copper doped porous carbon(Cu-Zn@C) composites were prepared by calcination using bimetallic Cu-Zn ZIFs as precursors, and characterized by SEM and XRD methods. The results show that the introduction of Cu does not damage the structure of ZIF-8 and the morphology of the material does not change significantly after high temperature carbonization. The introduction of Cu is beneficial to improve the adsorption performance of the porous carbon material for iodine ions.Acidic conditions are favorable to the adsorption of iodine ions by Cu-Zn@C, with an adsorption capacity of 230 mg/g at pH=3.In addition, the adsorption capacity of iodine ions is still high in the presence of a large number of interfering ions.

Keywords：zeolite imidazole skeleton; porous carbon; iodide anion; adsorption

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以ZIF-8为模板的Cu-Zn@C制备与吸附性能Preparation and adsorption properties of Cu-Zn@C with ZIF-8 template

以ZIF-8为模板的Cu-Zn@C制备与吸附性能
Preparation and adsorption properties of Cu-Zn@C with ZIF-8 template