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信息化应用22年12期

微流控技术制备聚合物微球及其吸附性能研究
陈宇溪,吕茉,朱自豪,刘岩,沈启慧
(吉林化工学院 化学与制药工程学院,吉林 吉林 132022)

摘  要:以甲基丙烯酸甲酯(MMA)、苯乙烯(St)为主要原料,通过微流控技术制得复合微球(PMS),利用扫描电镜(SEM)和红外光谱(FTIR)初步表征其结构。以甲基紫(MV)为吸附对象,考察染料溶液 pH 酸碱度、染料初始溶液质量浓度、吸附时间和温度对吸附过程的影响。结果表明:在投加量为 50 mg、pH 为 9、温度 30℃、甲基紫溶液浓度为 50 mg/L 时吸附效率高达 92.59%,吸附过程符合准二级动力学模型,重复利用 7 次内的吸附效率仍可达到 80% 以上,该材料具有较好的吸附能力。


关键词:微流控;聚合物微球;吸附甲基紫



DOI:10.19850/j.cnki.2096-4706.2022.012.031


基金项目: 吉林省科技发展计划项目(20200403122SF);吉林市科技发展计划资助项目(20190104183)


中图分类号:TJ55                                       文献标识码:A                                       文章编号:2096-4706(2022)12-0119-04


Research on the Preparation of Polymer Microspheres by Microfluidics Technology and Their Adsorption Performance

CHEN Yuxi, LYU Mo, ZHU Zihao, LIU Yan, SHEN Qihui

(College of Chemistry and Pharmaceutical Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China)

Abstract: The Polymer Microspheres(PMS) are made by Microfluidic technology using Methyl Methacrylate (MMA) and Styrene (St) as the main raw materials, and their structures are preliminarily characterized by Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). This paper takes the Methyl Violet (MV) as the adsorption object, investigates the effects of dye solution pH, initial dye solution mass concentration, adsorption time and temperature on the adsorption process. The results show that the adsorption efficiency is as high as 92.59% when the added dosage is 50 mg, the pH is 9, the temperature is 30 ℃ , and the solution concentration of Methyl Violet is 50 mg/L. The adsorption process conforms to a quasi-second-order kinetic model, and the adsorption efficiency can still reach more than 80% within 7 times of reuse. The materials have better adsorption ability.

Keywords: Microfluidics; Polymer Microspheres; adsorption of Methyl Violet


参考文献:

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作者简介:陈宇溪(1996—),女,汉族,吉林四平人,硕士研究生在读,主要研究方向:微流控技术的研究;通讯作者:沈启慧(1978—),男,汉族,湖南津市人,教授,博士,主要研究方向:材料制备与应用研究。