毛竹基Fe-Co/C复合材料对水体中阿特拉津的去除

陈彦旭; 程燕; 何慧军; 朱宗强; 张立浩; 朱义年

doi:10.13205/j.hjgc.202203007

毛竹基Fe-Co/C复合材料对水体中阿特拉津的去除

doi: 10.13205/j.hjgc.202203007

陈彦旭^1,2,
程燕^1,2, ,,
何慧军^1,2,
朱宗强^1,2,
张立浩^1,2,
朱义年^1,2

1. 桂林理工大学广西岩溶地区水污染控制与用水安全保障协同创新中心, 广西桂林 541004;
2. 桂林理工大学广西环境污染控制理论与技术重点实验室, 广西桂林 541004

基金项目:

广西创新研究团队项目(2018GXNSFGA281001)

广西科技计划项目(桂科AD19110090,桂科AD19110105)

国家自然科学基金(51978188,41763012,21707024)

详细信息

作者简介:
陈彦旭(1994-),男,硕士研究生,主要研究方向为环境功能材料制备及其应用。chenyanxu2021@163.com

通讯作者:
程燕(1985-),女,博士研究生,讲师,主要研究方向为水污染控制。b12030015@hnu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2021-02-04
- 网络出版日期: 2022-07-07

ATRAZINE REMOVAL FROM WATER BY MOSO BAMBOO BASED Fe-Co/C COMPOSITE

CHEN Yanxu^1,2,
CHENG Yan^{1,2
, ,},
HE Huijun^1,2,
ZHU Zongqiang^1,2,
ZHANG Lihao^1,2,
ZHU Yinian^1,2

1. Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin 541004, China;
2. Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin 541004, China

摘要

摘要: 以毛竹为载体、铁钴复合盐溶液为前驱体,采用水热浸渍法制备了毛竹基Fe-Co/C复合材料,并用扫描电镜(SEM)、X射线衍射(XRD)、红外光谱(FT-IR)和比表面积分析仪(BET)对样品进行了表征分析。通过批量实验研究了Fe-Co/C复合材料对阿特拉津的吸附特性。该吸附材料对水体中阿特拉津显示了良好的吸附性能。在阿特拉津初始浓度为10.0 mg/L,溶液pH为7.0,吸附剂用量为0.4 g/L,反应温度为25℃时,阿特拉津的平衡吸附量为21.89 mg/g。吸附过程符合二级动力学模型和Langmuir吸附等温式。热力学结果表明,Fe-Co/C复合材料对阿特拉津吸附是自发吸热过程。红外结果表明,氢键是Fe-Co/C复合材料对阿特拉津吸附的主要作用力,孔隙效应和л-л电子共轭作用也可能促进复合材料对阿特拉津的吸附。
- 吸附 /
- 铁 /
- 钴 /
- 阿特拉津 /
- 毛竹
Abstract: The moso bamboo based Fe-Co/C composite was prepared by hydrothermal impregnation with the bamboo as the carrier and iron-cobalt composite salt solution as the precursor, and characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), Infrared spectroscopy (FT-IR) and specific surface area analyzer (BET). The adsorption process of Fe-Co/C composites for atrazine was investigated by batch experiments. The Fe-Co/C composite exhibited good performance for atrazine removal in water. The equilibrium adsorption capacity of the Fe-Co/C composite was 21.89 mg/g at pH of 7.0, initial concentration of 10 mg/L, dosage of the Fe-Co/C composite of 0.4 g/L and temperature of 25℃. The adsorption process of atrazine on the Fe-Co/C composite could be simulated by the pseudo-second-order model and Langmuir isotherm model. The thermodynamic results showed that the adsorption of atrazine on Fe-Co/C magnetic composite was an endothermic process. The thermodynamic analysis illustrated an endothermic and spontaneous process of atrazine removal using the Fe-Co/C composite. Infrared spectra revealed that hydrogen bonding was one of the major adsorption forces for atrazine on Fe-Co/C composite, and pore effect and л-л conjugate interaction may also promote the adsorption of atrazine on composites.
- adsorption /
- iron /
- cobalt /
- atrazine /
- moso bamboo

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