[1]邬旻昊辰,梁庆华,阮晓雨,等.磁改性微囊藻基生物炭的制备及其对盐酸四环素的吸附机制[J].江苏农业学报,2025,(12):2371-2386.[doi:doi:10.3969/j.issn.1000-4440.2025.11.010]
　WU Minhaochen,LIANG Qinghua,RUAN Xiaoyu,et al.Preparation of magnetically modified Microcystis-based biochar and its adsorption mechanism for tetracycline hydrochloride[J].,2025,(12):2371-2386.[doi:doi:10.3969/j.issn.1000-4440.2025.11.010]
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磁改性微囊藻基生物炭的制备及其对盐酸四环素的吸附机制()

江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2025年12期
页码:
2371-2386
栏目:
耕作栽培·资源环境
出版日期:
2025-12-31

文章信息/Info

Title:
Preparation of magnetically modified Microcystis-based biochar and its adsorption mechanism for tetracycline hydrochloride
作者:
邬旻昊辰1; 2; 梁庆华3; 阮晓雨1; 2; 苗玉杰3; 卢信4; 邓建才1
(1.中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,江苏南京211135；2.中国科学院大学南京学院,江苏南京211135；3.江苏省太湖水利规划设计研究院有限公司,江苏苏州215128；4.江苏省农业科学院农业资源与环境研究所,江苏南京210014)
Author(s):
WU Minhaochen1; 2; LIANG Qinghua3; RUAN Xiaoyu1; 2; MIAO Yujie3; LU Xin4; DENG Jiancai1
(1.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 211135, China；2.University of Chinese Academy of Sciences, Nanjing, Nanjing 211135, China；3.Jiangsu Taihu Planning and Design Institute of Water Resources Co., Ltd., Suzhou 215128, China；4.Institute of Agricultural Resource and Environmental Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China)
关键词:
微囊藻; 生物炭; 磁改性; 盐酸四环素; 吸附机制
Keywords:
Microcystis; biochar; magnetic modification; tetracycline hydrochloride; adsorption mechanism
分类号:
X703
DOI:
doi:10.3969/j.issn.1000-4440.2025.11.010
文献标志码:
A
摘要:
本研究以微囊藻为原料,通过水热法负载Fe3O4纳米颗粒制备磁改性微囊藻基生物炭(FeBC),用于高效去除水体中的盐酸四环素(TC)。表征结果显示,FeBC具有142.72 m2/g的比表面积,表面富含C=O、Fe-O等官能团。与未改性的微囊藻基生物炭(BC)相比,磁改性微囊藻基生物炭(FeBC)的O元素含量/C元素含量值和(N元素含量+O元素含量)/C元素含量值升高,表明其亲水性与极性增强。FeBC对TC的最大吸附容量达142.95 mg/g,为BC的6.83倍。Freundlich等温吸附模型和准二级动力学模型拟合结果表明,FeBC对TC的吸附过程为多分子层化学吸附。具体为FeBC通过孔隙填充、π-π相互作用、氢键作用、配位作用吸附TC。本研究磁改性微囊藻生物炭制备工艺简单且磁改性微囊藻生物炭兼具高吸附容量和良好的再生性能,为抗生素污染治理提供了新型吸附材料。
Abstract:
In this study, Microcystis was used as the raw material, and magnetically modified Microcystis-based biochar (FeBC) was prepared by loading Fe3O4 nanoparticles via a hydrothermal method, which was applied for the efficient removal of tetracycline hydrochloride (TC) from water. Characterization results showed that FeBC had a specific surface area of 142.72 m2/g, and its surface was rich in functional groups such as C=O and Fe-O. Compared with unmodified Microcystis-based biochar (BC), the ratios of O/C and (N+O)/C in FeBC increased, indicating enhanced hydrophilicity and polarity. The maximum adsorption capacity of FeBC for TC reached 142.95 mg/g, which was 6.83 times that of BC. The fitting results of the Freundlich isothermal adsorption model and pseudo-second-order kinetic model indicated that the adsorption process of TC by FeBC was a multi-molecular layer chemical adsorption. Specifi-cally, FeBC adsorbed TC through pore filling, π-π interaction, hydrogen bonding, complexation. The magnetically modified Microcystis-based biochar developed in this study exhibits a simple preparation process, high adsorption capacity and good regenerability, demonstrating significant potential as a novel adsorbent for antibiotic pollution control.

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备注/Memo

备注/Memo:
收稿日期：2025-02-26基金项目：国家自然科学基金面上项目(32371648)作者简介：邬旻昊辰(2000-),男,宁夏银川人,硕士研究生,主要研究方向为湖泊生态环境与污染修复。(E-mail)minhaochenwu@163.com通讯作者：邓建才,(E-mail)jcdeng@niglas.ac.cn
更新日期/Last Update: 2026-01-20