来自玉米和红泥的可回收磁性生物炭,用于处理含有染料和重金属的复杂污染物
Ruihui Gong1, Huidong Li2,3, Yuxin Liu1
1School of Civil Engineering, Inner Mongolia University of Technology, Hohhot, 010051, People's Republic of China.
Environmental geochemistry and health
|December 16, 2025
概括
一种新的磁性生物炭有效地同时从废水中去除有机染料和重金属. 这种吸附剂具有高容量,最低限度的竞争和优良的可重复使用性,为复杂的水污染提供可持续的解决方案.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 废水处理因有机染料和重金属的共同污染而复杂化.
- 污染物之间的竞争性吸附阻碍了有效的去除.
研究的目的:
- 开发一种磁性多功能生物炭 (MMBC-400),用于同时去除马拉绿 (MG) 和Pb2+.
- 研究MMBC-400的吸附机制和抗干扰能力.
主要方法:
- 从玉米和红泥中合成MMBC-400.
- 在单一和二进制系统中评估吸附性能.
- 使用特定相互作用来表征吸附机制.
- 在多个循环中评估可再生性.
主要成果:
- MMBC-400的吸附能力很高:MG的吸附能力为794.72 mg/g,Pb2+的吸附能力为129 mg/g.
- 在二进制系统中,移除效率仍然很高 (MG的98.4%,Pb2+的93.8%),竞争最小.
- 确定了特定地点的机制 (π-π相互作用,复杂化).
- 观察到出色的再生能力,在五个循环后保留了>85%的去除.
结论:
- MMBC-400为复杂的废水整治提供了具有成本效益和可持续性的吸附剂.
- 由于特定的吸附机制,吸附剂表现出强大的抗干扰能力.
- 这一策略对设计有效的材料来同时去除污染物具有前景.
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