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Mohammed G Hassan¹, Magdy A Wassel², Hosni A Gomaa²

¹Chemistry Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt. scimohamed1991@gmail.com.

Scientific reports

|September 7, 2023

概括

一种新型的纳米组合活性炭/素 (AC/Cs) 与多壁碳纳米管 (MWCNTs) 的新型纳米组合物有效地从水中去除孟加拉染料 (RB). 这种吸附剂实现了94.7%的去除效率,证明了其在废水处理方面的潜力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

污染废水的染料,如孟加拉 (RB) 造成环境风险.
开发高效且具有成本效益的吸附剂对于去除染料至关重要.
纳米材料具有较大的表面积和增强的吸附性能.

研究的目的:

为了合成和表征一种新的纳米复合材料吸收剂,用于Rose Bengal染料去除.
在各种条件下研究AC/Cs/MWCNTs复合物的吸附性能.
为了评估吸附机制和热力学行为.

主要方法:

纳米奇托桑/活性炭 (AC/Cs) 复合物的合成.
与功能化的多壁碳纳米管 (MWCNTs-COOH) 进行交叉链接,形成AC/Cs/MWCNTs.
吸附实验在不同的度,pH值和温度下进行.
同热和运动模型 (Langmuir,伪二阶).
热力学分析.热力学分析.

主要成果:

该AC/Cs/MWCNTs复合体的表面积高达1923 m2/g.
在pH值为6.5.5时,达到94.7%的最大RB去除效率.
吸附数据最适合兰木尔等温和和伪二次运动模型.
热力学研究表明,有一个外热和自发的吸附过程.

结论:

合成的AC/Cs/MWCNTs纳米复合物是孟加拉染料的高效吸附剂.
吸附过程由兰格穆尔等温和和伪二阶动力学来控制.
吸附的外热和自发性质凸显了其在废水处理中的实际应用的可行性.

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