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使用双金属Bi⁰/Cu⁰基纳米复合材料生物炭从水溶液中去除

Behzad Murtaza¹, Aqsa Naseer², Muhammad Imran²

¹Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, 61100, Pakistan. behzadmurtaza@cuivehari.edu.pk.

Environmental geochemistry and health

|June 2, 2023

概括

这项研究开发了来自杏仁的新型纳米生物复合材料,生物炭和/铜,以有效地从水中去除. Bi-Cu/BC复合材料表现出卓越的性能,为水处理提供了一个有前途的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

水层中的污染带来了重大的环境和毒理风险.
开发有效的吸附剂来去除对于净化水非常重要.

研究的目的:

通过使用杏仁合成和描述新型纳米生物复合材料,生物炭 (BC) 与零价比斯木 (Bi) 和/或铜 (Cu) 结合.
评估这些纳米复合材料 (Bi⁰/BC,Cu⁰/BC和Bi⁰-Cu⁰/BC) 在从水溶液中去除 (Cr) 的有效性.

主要方法:

纳米复合材料使用XRD,FTIR,SEM和EDX进行合成和表征.
吸附实验进行了不同的Cr度,吸附剂剂量,pH值和接触时间.
用弗洛伊德利希等温和和伪二次运动模型分析了吸附数据.

主要成果:

描述证实了与BC集成的Bi⁰/Cu⁰的成功形成.
Bi-Cu/BC纳米复合材料实现了最高的Cr去除效率 (92%),超过了Cu/BC (85%),Bi/BC (76%) 和BC (67%).
在低度 (25 mg/L) 和酸性pH (4.0) 时,最佳的去除发生,在低pH时有利于Cr (VI) 吸附,在高pH时有利于Cr (III) 吸附.

结论:

合成的Bi⁰-Cu⁰/BC纳米生物复合材料具有出色的Cr去除潜力和稳定性.
这种材料提供了一种可持续且有效的解决方案,用于从污染水源中去除.
吸附过程遵循弗洛伊德利希等热量和伪二次动力学,表明化学吸附机制.

关键词:

一个批量规模的实验实验.(Chromium) 是一种含的物质.污染的含水层被污染了纳米生物复合材料的使用.表面吸附的吸附方式

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