从废水和污染水中有效消除Pb (II) 酸,使用 siderite 磁性生物炭
Saeid Gitipour1, Mahsa Sanaei2, Razyeh Lak3
1Faculty of environment, University of Tehran, Tehran, Iran.
Scientific reports
|March 6, 2025
概括
磁性生物炭复合材料有效吸附污染水中的 (Pb (II)) 离子. 这种可重复使用的材料由于其磁性特性和强大的吸附能力,为环境修复提供了有效的解决方案.
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 化学 化学
背景情况:
- (Pb(II)) 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.
- 磁性生物炭由于其独特的特性,提供了一个有前途的解决方案.
研究的目的:
- 从 siderite 和粉中合成磁性生物炭复合物.
- 为了研究磁性生物炭对Pb (II) 离子的吸附性能.
- 评估磁性生物炭的可重复使用性和吸附机制.
主要方法:
- 在气氛中对 siderite 和粉进行热解,以产生磁性生物炭.
- 在不同的pH值和温度下进行批量吸附实验.
- 诱导合等离子体 (ICP) 用于Pb (II) 度测量.
- 用于材料特征的X射线衍射 (XRD).
- 吸附-脱附周期用于重复使用性评估.
主要成果:
- 磁性生物炭表现出高特异性表面积和多孔结构.
- 在pH 5.0和45°C时,可以达到Pb (II) 的最佳吸附,达到96.92%的去除率.
- 吸附遵循兰迈尔和伪二阶模型,表明单层化学吸附.
- 磁性生物炭在五个循环中表现出极好的可重复使用性.
结论:
- 乙酸衍生的磁性生物炭是一种高效的吸附剂,用于Pb (II) 的去除.
- 它的磁性特性使其易于分离和重复使用,使其可持续.
- 这种材料显示出在受污染的水体中修复的巨大潜力.
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