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用Fe修饰的花生生物炭对Pb (II) 在混合Pb (II),Cu (II),Ni (II) 溶液中的吸附

Jingyi Chen¹, Qianqian Duan², Jiusheng Liu³

¹School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiu Avenue, Hefei, 230601, China. chenjy@hfuu.edu.cn.

Scientific reports

|April 19, 2025

概括

用Fe修饰的黑花生生物炭 (Fe@BC) 能够有效地从混合金属溶液中吸收 (Pb(II)). 这种可持续的吸附剂在废水处理方面具有前景,具有高效的再生能力.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
吸附科学吸附科学

背景情况:

污染废水的重金属如 (Pb) (II),铜 (Cu) (II) 和 (Ni) (II)) 构成严重的环境和健康风险.
开发具有成本效益和高效的吸附剂,同时去除多个金属离子,对于环境修复至关重要.

研究的目的:

制造和鉴定花生 (Fe@BC) 中的磁性生物炭,用于从多金属溶液中吸附Pb(II).
研究Fe@BC的吸附性能,动力学,热力学和机制,用于Pb (II),Cu (II) 和Ni (II).

主要方法:

使用FeCl3.3合成Fe修饰的黑花生生物炭 (Fe@BC).
批量吸附实验,以评估pH值,时间和温度对金属离子去除的影响.
使用动力和等温模型进行分析 (几乎是二次级,弗洛伊德利希,兰格穆尔-弗洛伊德利希).
研究吸附机制和吸附剂再生研究.

主要成果:

与Cu(II) 和Ni(II) 相比,Fe@BC在混合溶液中对Pb(II) (22.535 mg/g) 的吸附性更强.
最佳吸附条件是pH值为4.0和8小时的平衡时间.
吸附遵循了近秒运动模型,表明是一个自发的过程.
在使用HCl的四个周期中,Fe@BC对Pb (II) 显示出良好的再生能力.

结论:

用Fe修饰的黑花生生物炭是一种高效和可再生的吸附剂,用于从复杂的废水矩阵中去除Pb (II).
该研究强调了基于生物炭的材料在可持续重金属整治方面的潜力.
吸附机制包括离子交换,表面相互作用和化学结合.

关键词:

生物炭是一种生物炭.黑色花生贝的花生贝.机理机制机理机制混合混合混合的混合.修改器修改器是一个修改器.废水是废水,废水就是废水.

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