氨基酸改性上循环生物炭在复杂的水性基质中实现了选择性去除
Kenneth Flores1, Diego F Gonzalez2, Helia M Morales3
1Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA.
Journal of environmental management
|May 18, 2024
概括
皮生物炭,用氨基基团化学修饰,有效地从水中去除有毒的 (Cr(VI) 和Cr(III). 这种可持续的方法将农业废物循环再利用,以有效净化水.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
背景情况:
- 地下水中的污染是全球环境的一个重大问题.
- 吸附技术为修复提供了一个可持续的解决方案.
- 农业废物为开发新型吸附剂提供了机会.
研究的目的:
- 从复杂的水矩阵中开发一种高效和选择性的Cr (VI) 和Cr (III) 吸附剂.
- 为了利用皮废弃物来创建可持续的净水材料.
- 为了研究化学修饰生物炭的吸附性能和选择性.
主要方法:
- 从皮中采购和制备生物炭.
- 使用绿色氨基化方法化学修改生物炭.
- 使用FTIR分析对改性生物炭进行表征.
- 在各种水性矩阵中对Cr6和Cr3进行吸附实验.
主要成果:
- FTIR分析证实通过amination成功引入了C-N和N-H债券.
- 氨基基改性生物炭显示出高吸附能力:Cr6的46.5 mg/g和Cr6的27.1 mg/g.
- 吸附剂在具有高度干扰离子的复杂矩阵中表现出极好的选择性和稳定性.
结论:
- 氨基酸修饰的皮生物炭是一种高效和选择性的Cr6和Cr3吸附剂.
- 这种可持续材料为纠正复杂的污染提供了一个有希望的解决方案.
- 证明了农业废物的再循环利用为先进的净水技术.
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