Page 175 - 《精细化工》2023年第6期

第 40 卷第 6 期 精 细 化 工 Vol.40, No.6
20 23 年 6 月 FINE CHEMICALS June 2023

催化与分离提纯技术
-环糊精-纤维素基超交联微球吸附

分离苯乙酮和 1-苯乙醇

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程 昀 ，丁俊杰 ，纪红兵 1,3 ，柴坤刚 1,3*
(1. 广西大学 化学化工学院, 广西 南宁 530004; 2. 武汉绿知行环保科技有限公司, 湖北 武汉 430074;
3. 广西石化资源加工及过程强化技术重点实验室，广西 南宁 530004)

摘要：将苄基化 β-环糊精引入到纤维素接枝聚苯乙烯复合微球上，制备了一种 -环糊精-纤维素基超交联微球
（HCCM），并用于吸附分离苯乙酮（AP）和 1-苯乙醇（PE）。通过 FTIR、N 2 吸附-脱附、SEM 和 TEM 对其进
行了表征。结果表明，HCCM 是由大量的糖单元和富苯基单元交织形成的具有多级孔结构的生物质基聚合微球，
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比表面积为 471.20 m /g。在 25 ℃，初始质量浓度为 2000 mg/L 的单组分溶液中对 HCCM 吸附分离 AP/PE 的性
能进行了测试。间歇式吸附很快达到吸附平衡，HCCM 对 AP 的吸附量为 291.7 mg/g，明显高于对 PE 的吸附量
（138.2 mg/g）。准二级动力学模型和 Freundlich 模型能更好地描述吸附过程，吸附过程存在化学吸附。双组分
连续式吸附实验中，PE 较 AP 提前穿透，穿透间隔时间较长，且 HCCM 对两者的吸附具有较高的分离因子（3.93），
说明 HCCM 能有效分离 AP/PE。HCCM 经重复使用 5 次仍保持吸附量不变，说明其具有良好的循环使用性。
关键词：生物质；纤维素；-环糊精；苯乙酮；1-苯乙醇；吸附分离；分离技术
中图分类号：TQ243.4；O647.3 文献标识码：A 文章编号：1003-5214 (2023) 06-1325-07

Adsorptive separation of acetophenone and 1-phenylethanol by

-cyclodextrin-cellulose based hypercrosslinked microspheres

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CHENG Yun , DING Junjie , JI Hongbing , CHAI Kungang 1,3*
（1. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, Guangxi, China; 2. Wuhan
Lvzhixing Environmental Protection Technology Co., Ltd., Wuhan 430074, Hubei, China; 3. Guangxi Key Laboratory of
Petrochemical Resource Processing and Process Enhancement Technology, Nanning 530004, Guangxi, China）

Abstract: -Cyclodextrin-cellulose based hypercrosslinked microspheres (HCCM) was prepared by
introducing benzylation β-cyclodextrin onto cellulose grafted polystyrene composite microspheres and used
for acetophenone (AP) and 1-phenylethanol (PE) adsorption and separation. The structure of HCCM was
characterized by FTIR, N 2 adsorption desorption, SEM and TEM. The results showed that HCCM was a
biomass-based polymer microsphere with hierarchically porous structure composed of a large number of
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sugar units and phenyl rich units, and displayed a specific surface area of 471.20 m /g. The performance of
HCCM for the adsorption and separation of AP/PE was analyzed firstly in a single component solution with
an initial concentration of 2000 mg/L at 25 ℃. The adsorption could quickly reach equilibrium, with an
adsorption capacity for AP of 291.7 mg/g much higher than that for PE (138.2 mg/g). The absorption process
could be well described by Freundlich equation and pseudo-second-order kinetic equation, and chemical
adsorption played a role in the adsorption process. Furthermore, in the two-component continuous adsorption
experiment, PE exhibited much faster penetration rate, with a long breakthrough interval and a high
separation factor (3.93), indicating that HCCM could separate AP and PE effectively. After recycled for

收稿日期：2022-09-21; 定用日期：2022-12-06; DOI: 10.13550/j.jxhg.20220866
基金项目：国家自然科学基金（21868002，21961160741）；广西石化资源加工及过程强化技术重点实验室主任基金（2021Z010）
作者简介：程 昀（1997—），男，硕士生，E-mail：1103401851@qq.com。联系人：柴坤刚（1985—），男，副教授，E-mail：
chaikungang@gxu.edu.cn。