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通过用酸盐修饰的碳化合物有效地从废水中去除重金属和抗生素

Xiaojing Qin¹, Weibo Meng², Song Cheng³

¹School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo, 454003, China.

|October 20, 2023

概括

用酸盐修饰的酸盐有效地从水中去除 (Pb (II)) 和酸. 这种可持续吸附剂显示出高容量和稳定性,为废水处理提供了一个有前途的解决方案.

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) 和制药,如西普洛克萨,造成严重的环境和健康风险.
开发高效和可持续的吸附剂对于有效的水资源整治至关重要.

研究的目的:

为了制备和表征酸盐修饰的化 (P-化) 从木粉.
调查P-hydrochar的吸附性能,以从水溶液中去除Pb (II) 和西普罗弗洛素,无论是单独的还是二元系统中的.
阐明吸附机制,评估吸附剂的稳定性和可重复使用性.

主要方法:

制备和表征P-化合物.
对Pb (II) 和西普洛素进行批量吸附实验.
使用希尔和伪二阶模型进行吸附异温和运动研究.
密度函数理论 (DFT) 分析用于机制调查.
循环吸附-脱附试验,以评估可重复使用性.

主要成果:

酸对Pb (II) (119.61 mg/g) 和酸 (98.38 mg/g) 具有很高的吸附能力,符合希尔模型.
吸附动力学遵循伪二阶模型.
在二元系统中观察到协同效应,增强Pb (II) 吸附,并根据度影响西普洛素吸附.
对于Pb(II) (沉,π-π相互作用,复杂化) 和西普罗夫洛素 (结合,孔隙填充,静电吸引) 已确定了不同的吸附机制.
在5个循环中,P-基体表现出极好的稳定性和可重复使用性,吸附能力的损失最小.
同时存在的离子对吸附效率的影响微不足道.

结论:

木粉可以转化为有效的P-合物吸附剂,同时去除Pb (II) 和西普罗素.
-酸具有很高的吸附能力,良好的动力学和出色的可重复使用性,使其成为污水处理的可行材料.
了解协同效应和独特的机制为设计先进吸附材料提供了洞察力.

关键词:

吸附剂是一种吸附剂.吸附方式吸附方式吸附方式齐普罗夫洛克萨辛的使用方法重金属是一种重金属.树的粉是因为树的粉.

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