Page 55 - 《精细化工》2020年第4期

第 37 卷第 4 期 精 细 化 工 Vol.37, No.4
202 0 年 4 月 FINE CHEMICALS Apr. 2020

功能材料
高吸附性能介孔磁性复合碳球的制备

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韩金玲，陈 葵 ，武 斌，纪利俊，吴艳阳，朱家文
（华东理工大学 化工学院，上海 200237）

摘要：以正硅酸乙酯（TEOS）为硅前驱体，间苯二酚-甲醛树脂（RF）为碳源，在表面活性剂十六烷基三甲基
溴化铵（CTAB）的辅助作用下，采用原位聚合法制备了介孔磁性复合碳球 Fe 3 O 4 @C-M。考察了醇水比〔V(乙
醇)∶V(水)〕、表面活性剂用量、TEOS 用量和水热温度（HT）对碳球的形貌、粒径和表面孔结构的影响。在 84 mL
乙醇/水混合液〔V(乙醇)∶V(水)= 3∶4〕、CTAB 0.6 g、TEOS 4 mL、水热温度 100 ℃下制备得到 Fe 3 O 4 @C-M，
2
采用 TEM、XRD、XPS、BET、TGA、VSM 对其进行表征。结果表明，Fe 3 O 4 @C-M 的比表面积为 553 m /g，
较不引入硅前驱体时制备的磁性复合碳球 Fe 3 O 4 @C-0 增大 1.7 倍，介孔孔容占比由 18%增大到 83%。考察
Fe 3 O 4 @C-M 对红霉素的吸附性能，饱和吸附量为 255 mg/g；用乙酸正丁酯对吸附后材料进行再生，5 次循环再
生后吸附量维持在初始吸附量的 85%以上。
关键词：磁性复合碳球；硅前驱体；介孔；吸附；红霉素；功能材料
中图分类号：TB333 文献标识码：A 文章编号：1003-5214 (2020) 04-0689-08

Preparation of mesoporous magnetic composite carbon
spheres with high adsorption properties

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HAN Jinling, CHEN Kui , WU Bin, JI Lijun, WU Yanyang, ZHU Jiawen
（College of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China）

Abstract: Mesoporous magnetic composite carbon spheres Fe 3O 4@C-M were prepared by in-situ
polymerization using tetraethyl orthosilicate (TEOS) as silicon precursor, resorcinol-formaldehyde resin
(RF) as carbon source under the assistance of surfactant, cetyltrimethyl ammonium bromide (CTAB). The
effects of ethanol-water ratio [V(ethanol)∶V(water)], CTAB dosage, TEOS dosage and hydrothermal
temperature (HT) on the morphology, particle size and surface structure of carbon spheres were investigated.
Fe 3O 4@C-M was prepared in 84 mL ethanol/water mixture [V(ethanol)∶V(water)=3∶4], 0.6 g CTAB,
4 mL TEOS, hydrothermal temperature 100 ℃. The sample was characterized by TEM, XRD, XPS, BET,
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TGA, and VSM. The results showed that the specific surface area of Fe 3O 4@C-M was 553 m /g, increased
1.7 times compared with that of the magnetic composite carbon spheres Fe 3O 4@C-0 prepared without
introduction of the silicon precursor. Moreover, the mesoporous pore volume ratio increased from 18% to
83%. At the same time, the adsorption property of erythromycin on Fe 3O 4@C-M was investigated. And the
saturated adsorption capacity of erythromycin was 255 mg/g. The Fe 3O 4@C-M could be regenerated with
n-butyl acetate, and the adsorption capacity of erythromycin maintained over 85% of the initial adsorption
capacity after five cycles of regeneration.
Key words: magnetic composite carbon spheres; silicon precursor; mesoporous; adsorption; erythromycin;
functional materials

[1]
[2]
抗生素在医疗行业、养殖业和农业中大量使用 ， 健康构成极大威胁 。目前，水环境中抗生素的去除
[5]
造成其在环境中的持续性残留，对生态环境和人类 方法主要有吸附法 [3-4] 、生物降解法 、化学氧化法 [6]

收稿日期：2019-11-12; 定用日期：2020-01-15; DOI: 10.13550/j.jxhg.20191071
作者简介：韩金玲（1994—），女，硕士生，E-mail：jinlinghan7@163.com。联系人：陈 葵（1965—），女，副教授，E-mail：
chenkui@ecust.edu.cn。