通过大面积的高效去除微量重金属,下令使用dithiocarbamate功能化的磁性半孔
Najmedin Azizi1, Amin Rahimzadeh Oskooee2, Elham Farhadi2
1Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran. azizi@ccerci.ac.ir.
Environmental science and pollution research international
|October 13, 2023
概括
一种新的dithiocarbamate功能化的磁性纳米复合材料有效地从水中去除诸如,和铜等重金属. 这种可重复使用的吸附剂在水净化应用中显示出高效率和容量.
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:
- 水中的重金属污染对环境和健康构成重大风险.
- 开发高效且可重复使用的吸附剂对于水资源整治至关重要.
- 磁纳米复合材料在分离和回收过程中具有优势.
研究的目的:
- 为了合成和描述一种新的dithiocarbamate功能化的磁性纳米复合材料.
- 评估吸附剂在从污染水中去除Pb (II),Cd (II) 和Cu (II) 的效率.
- 确定开发的吸附剂的最佳条件和再生能力.
主要方法:
- 孔隙磁性纳米复合材料的合成,随后进行dithiocarbamate功能化.
- 使用XRD,TEM,SEM,FTIR和TGA进行表征.
- 吸附实验以评估重金属去除效率,最佳pH值,接触时间和剂量.
主要成果:
- 该纳米复合材料具有很大的表面积 (1149 m2/g) 和孔径 (2.55 nm).
- 在pH>4的情况下,在60-120分钟内实现了Pb (II),Cd (II) 和Cu (II) 的高去除效率.
- 确定了最佳的吸附剂剂量 (30毫克为Pb(II),40毫克为Cu(II),50毫克为Cd(II)),吸附剂在五个循环中证明了可重复使用性.
结论:
- 这种dithiocarbamate功能化的磁性纳米复合材料是从水中去除重金属的有希望的吸附剂.
- 该材料的性能和性能表明其在实际水处理应用中的潜力.
- 该研究强调了功能化磁纳米复合材料在环境修复中的有效性.
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