[1]欧红香,张嘉陆,余沛霖,等.中空硅球优化制备及吸附红霉素性能研究[J].常州大学学报(自然科学版),2019,31(01):1-7.[doi:10.3969/j.issn.2095-0411.2019.01.001]
　OU Hongxiang,ZHANG Jialu,YU Peilin,et al.Optimal Preparation of Hollow Silica Microsphere and Its Adsorption Performance on Erythromycin[J].Journal of Changzhou University(Natural Science Edition),2019,31(01):1-7.[doi:10.3969/j.issn.2095-0411.2019.01.001]
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中空硅球优化制备及吸附红霉素性能研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第31卷
期数:
2019年01期
页码:
1-7
栏目:
环境科学与工程
出版日期:
2019-01-28

文章信息/Info

Title:
Optimal Preparation of Hollow Silica Microsphere and Its Adsorption Performance on Erythromycin
文章编号:
2095-0411(2019)01-0001-07
作者:
欧红香1; 2; 张嘉陆1; 余沛霖1; 陈光浩1; 郑旭东1; 丁建宁1; 2
(1.常州大学 环境与安全工程学院,江苏 常州213164; 2.江苏大学 机械工程学院,江苏 镇江 212013)
Author(s):
OU Hongxiang1; 2;  ZHANG Jialu1;  YU Peilin1;  CHEN Guanghao1;  ZHENG Xudong1;  DING Jianning1; 2
(1. School of Environmental and Safety Engineering, Changzhou University, Changzhou 213164, China; 2.School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China)
关键词:
皮克林乳液;  红霉素;  吸附;  二氧化硅;  正交实验
Keywords:
pickering emulsion;  erythromycin;  adsorption;  silica;  orthogonal experiment
分类号:
X 506,X 703
DOI:
10.3969/j.issn.2095-0411.2019.01.001
摘要:
利用纳米SiO2稳定的皮克林乳液聚合法制备了中空SiO2微球(HSM)并用于溶液中红霉素的吸附分离。通过正交实验探究制备过程中SiO2用量、搅拌速度、干燥方式和聚合时间对HSM吸附能力的影响; 考察了最优条件下制备的HSM的投加量,溶液pH、温度、吸附时间对吸附红霉素性能的影响。结果表明: SiO2用量0.35 g、冷冻干燥、转速5 000 r/min下聚合24 h,HSM有最佳吸附量。HSM投加量为1.0 g·L-1、溶液初始pH=8.0,35℃下吸附24 h,吸附量可达45.05 mg·g-1。HSM的等温吸附数据用Langmuir模型拟合更好,以单层吸附为主; 准一级动力学模型对吸附动力学实验结果具有更高的相关系数。
Abstract:
Hollow silica microspheres(HSM)were prepared by Pickering emulsion polymerization with nano-SiO2 particles as stabilizer, and were used for the adsorption and separation of erythromycin in solution. The effects of the amount of SiO2, the stirring speed, the drying method and the polymerization time on adsorption capacity of HSM during the preparation process were investigated by orthogonal experiments. The effects of the dosage of HSM, solution pH, temperature and adsorption time on the adsorption capacity of HSM were investigated. The results showed that HSM obtained the best adsorption capacity under the following preparing conditions: the amount of SiO2 0.35 g, 5 000 r/min, polymerizing 24 h and freeze-dried method. Under the following adsorbing conditions: dosage of HSM 1.0 g · L-1, solution initial pH 8.0, and at 35 ℃ adsorbing 24 h, the adsorption amount of HSM reached 45.05 mg · g-1. The isothermal adsorption data of HSM were better fitted by Langmuir model, indicating that it’s dominated by monolayer adsorption. The pseudo-first-order kinetic model obtained better correlation coefficient for the adsorption kinetics data.

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备注/Memo

备注/Memo:
收稿日期:2018-09-18。
基金项目:国家自然科学基金项目(21306013); 江苏省博士后基金项目(1501024A); 国家自然基金项目(21477050)。
作者简介:欧红香(1976—),女,湖南宜章人,博士,教授。E-mail: ouhongxiang@cczu.edu.cn
更新日期/Last Update: 2019-02-20