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从污染水中去除烯蓝,使用一种新型的功能化磁性纳米吸收剂

Hadeel Saad^1,2, F A Nour El-Dien¹, Nadia E A El-Gamel¹

¹Chemistry Department, Faculty of Science, Cairo University Giza 12613 Egypt.

|January 4, 2024

概括

一种新型的色剂功能化的超偏磁铁氧化物纳米颗粒吸收剂有效地从水中去除烯蓝色染料. 这种环保吸收剂利用物理吸收,适用于水处理应用.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

有机染料,特别是色染料,是环境污染的重要因素.
污染废水的染料,如甲蓝 (BPB) 构成生态风险.
开发高效的吸附剂对于从水中去除染料至关重要.

研究的目的:

合成和描述一种用于离子染料去除的新型吸附剂.
调查BPB开发的吸附剂的吸附机制和效率.
评估染料功能化超偏磁铁氧化物纳米粒子 (SPIONs) 在水净化中的潜力.

主要方法:

制造阿佐染料功能化SPIONs (ADFS) 吸附剂.
使用FTIR,UV-vis,HNMR,MS,SEM,DLS,泽塔潜力,VSM,TGA,DTA和XRD进行表征.
吸附实验以确定容量,动力学和异热模型.
热力学分析以了解吸附过程.

主要成果:

确定ADFS粒子大小为176.5nm (SPIONs:46.1nm) 的时间.
吸附剂显示了BPB的高吸附能力,为7.43毫克-1毫克.
吸附跟随伪二次动力学和弗洛伊德利希等温,表明物理吸收.
热力学研究证实了自发和热驱动的吸附.

结论:

染剂功能化的SPIONs有效地从污染水中去除甲蓝.
吸附机制涉及物理吸附,可能是通过范德瓦尔斯力和键.
开发的吸附剂显示出对染料污染的环境补救有希望.

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