Preparation of biochar-metal organic framework composite by one-pot method for the adsorption of perfluorooctanoic acid

被引：0
|
作者：
Zhou, Yaolu [1 ,2 ]
Zhu, Shaoyu [1 ,2 ]
Liu, Shuren [1 ]
Qian, Yifan [1 ,2 ]
Bai, Shanshan [1 ]
机构：
[1] Zhejiang Provincial Key Laboratory of Pollution Exposure and Health Intervention, Interdisciplinary Research Academy, Zhejiang Shuren University, Hangzhou,310015, China
[2] College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou,310015, China
来源：
Chinese Journal of Analysis Laboratory | 2024年 / 43卷 / 05期
关键词：
Adsorption isotherms - Carbon sequestration;
D O I：
10.13595/j.cnki.issn1000-0720.2023111004
中图分类号：
学科分类号：
摘要：
A novel biochar-metal organic framework composite material (MIL-101(Fe)@BC) was prepared using the one-pot method. The material was characterized using Fourier-transform infrared spectroscopy, scanning electron microscopy, and nitrogen adsorption-desorption analysis. The adsorption efficiency and mechanism of MIL-101(Fe)@BC to perfluorooctanoic acid (PFOA) were investigated and compared with five commonly used engineering carbon materials. The results showed that MIL-101(Fe)@BC achieved optimal adsorption at pH 4, with an optimum dosage of 0.05 g/L within 1 h. The adsorption isotherm of PFOA on MIL-101 (Fe)@BC followed both Langmuir and Freundlich models, with a maximum saturation adsorption capacity of 925.93 µmol/g. The adsorption process followed pseudo-second-order kinetics, and pore filling and hydrogen bonding were identified as the main adsorption mechanisms of MIL-101(Fe)@BC to PFOA. MIL-101(Fe)@BC exhibited superior adsorption and regeneration efficiency compared to widely used engineering carbon materials, indicating significant practical application potential. © 2024, Youke Publishing Co.,Ltd. All rights reserved.
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页码：699 / 704
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