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纤维素链的双磁化和氨化,用于有效吸附重金属

Farham Aminsharei¹, Akramolmolok Lahijanian², Andisheh Shiehbeigi²

¹Department of Safety, Health and Environment, Najafabad Branch, Islamic Azad University, Najafabad 85141-43131, Iran.

International journal of biological macromolecules

|July 20, 2024

概括

一种新的磁吸附剂,NiFe2O4@SiO2-纤维素-NH2,有效地从废水中去除,和等重金属. 这种磁性纤维素复合材料为环境修复提供了出色的可回收性和高吸附能力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

含有基和氨基群的化合物显示出对离子吸附的前景.
开发高效的吸附剂来从废水中去除重金属至关重要.

研究的目的:

为了合成和描述一种新的磁性吸附剂,NiFe2O4@SiO2-纤维素-NH2.
为了研究准备材料的重金属 (Cd,Ni,Pb) 吸附能力.
评估磁芯对吸附剂可回收性和吸附潜力的影响.

主要方法:

合成NiFe2O4@SiO2-纤维素-NH2通过氨基功能化的纤维素链与磁核结合.
使用XRD,FT-IR,SEM,EDS和TGA-DTA分析进行表征.
吸附研究涉及批量实验,以确定最佳的pH值,温度,度和剂量来去除重金属.

主要成果:

NiFe2O4@SiO2-纤维素-NH2系统表现出高效的磁分离和可回收性.
获得的最大吸附能力为:Cd (II) 的406.44 mg/g,Ni (II) 的411.63 mg/g和Pb (II) 的414.68 mg/g.
优化条件包括pH6.5,500 mg/L离子度,1.2 g/L吸附剂剂量和室温.

结论:

磁芯对纤维素基吸附剂的吸附潜力和可回收性产生积极影响.
NiFe2O4@SiO2-纤维素-NH2是一种高效的吸附剂,用于从合成废水中去除Cd(II),Ni(II) 和Pb(II).
开发的材料显示了重金属修复中实际应用的巨大潜力.

关键词:

吸附方式吸附方式吸附方式纤维素是纤维素的一种.重金属是一种重金属.磁分离器的磁性分离方式在NiFe(2)O(4)@SiO(2) -纤维素-NH(2) 系统中废水是废水,废水就是废水.

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