Journal of Liaoning Petrochemical University

Journal of Liaoning Petrochemical University ›› 2021, Vol. 41 ›› Issue (5): 38-43.DOI: 10.3969/j.issn.1672-6952.2021.05.007

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Adsorption of Bilirubin by Carbon Nanotubes with Different Structures

Jiayu Tang(), Pengfei Kong, Jia Ju(), Min Tang, Jianfei Xu, Ling Wang, Sheng Chen   

  1. School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China
  • Received:2020-05-27 Revised:2020-06-15 Online:2021-10-25 Published:2021-11-09
  • Contact: Jia Ju

不同结构碳纳米管吸附胆红素的研究

汤佳玉(), 孔鹏飞, 鞠佳(), 唐敏, 徐见飞, 王令, 陈胜   

  1. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001
  • 通讯作者: 鞠佳
  • 作者简介:汤佳玉(1997⁃),女,本科生,环境工程专业,从事亲和膜分离方面的研究;E⁃mail:823643104@qq.com
  • 基金资助:
    国家自然科学基金青年基金项目(21606120);辽宁省大学生创新创业训练计划项目(201910148049)

Abstract:

The bilirubin adsorption properties of three different types of carbon nanotubes (MW, LMW and SW) were studied. X?Ray Diffractomer (XRD) spectra shows that the diameters of the three carbon nanotubes are ranked as LMW>MW>SW. Scanning Electron Microscopy (SEM) and Brunner Emmet Teller (BET) show that MW has the best dispersion, a larger specific surface area, the largest pore size and a maximum pore volume. The bilirubin adsorption results show that the carbon nanotubes have the maximum bilirubin adsorption capacity when the temperature is set as 37℃ and the adsorption time reach 40 min. When the concentration of bilirubin is higher than 0.5 g/L, the bilirubin adsorption capacity of MW carbon nanotubes is the largest, and the maximum adsorption capacity of bilirubin reach 208 mg/g membrane. With increasing ion strength, albumin mass concentration, and under alkaline conditions, increasing pH does not benefit the absorption of bilirubin in the buffer solution. Compared with the conventional adsorbents, all the three carbon nanotubes show the excellent performance of short adsorption time and large adsorption capacity for bilirubin, which provide the experimental basis for the preparation of polymer microfiltration membranes blending with carbon nanotubes and its adsorption of bilirubin.

Key words: Adsorption, Bilirubin, Carbon nanotube, Inorganic materials

摘要:

研究了3种不同型号的碳纳米管(MW、LMW和SW)的胆红素吸附性能。X射线衍射(XRD)谱图显示,3种碳纳米管的管径大小排序为LMW>MW>SW。扫描电子显微镜(SEM)和比表面积测试(BET)结果表明,MW型分散性最好,且具有较大的比表面积、最大的孔径和孔容。胆红素吸附实验结果表明,当温度为37 ℃、吸附时间为40 min时,碳纳米管吸附胆红素的性能最佳。当胆红素质量浓度大于0.5 g/L时,MW型碳纳米管吸附容量最大,最大胆红素吸附量达到208 mg/g。增大NaCl浓度、牛血清白蛋白质量浓度和提高pH均不利于胆红素在溶液中的吸附。与传统吸附剂相比,3种碳纳米管对胆红素均表现出吸附时间短、吸附容量大的优良性能,为后期制备碳纳米管共混微滤膜及其吸附胆红素提供了实验基础。

关键词: 吸附, 胆红素, 碳纳米管, 无机材料

CLC Number: 

Cite this article

Jiayu Tang, Pengfei Kong, Jia Ju, Min Tang, Jianfei Xu, Ling Wang, Sheng Chen. Adsorption of Bilirubin by Carbon Nanotubes with Different Structures[J]. Journal of Liaoning Petrochemical University, 2021, 41(5): 38-43.

汤佳玉, 孔鹏飞, 鞠佳, 唐敏, 徐见飞, 王令, 陈胜. 不同结构碳纳米管吸附胆红素的研究[J]. 辽宁石油化工大学学报, 2021, 41(5): 38-43.

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