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从水溶液中有效地去除金属离子,使用与Fe3O4纳米粒子结合的MoS功能化奇托希夫基

I Risha Achaiah¹, B H Gayathri², Nagma Banu³

¹ACU-Centre for Research and Innovation, Adichunchanagiri School of Natural Sciences, Adichunchanagiri University, Mandya 571448, India.

International journal of biological macromolecules

|July 26, 2023

概括

一种新的pyrazole-chitosan Schiff基复合材料,用氧化铁-二硫化物 (Fe3O4-MoS2) 纳米粒子功能化,有效地从水中去除重金属. 这种吸附剂具有很高的Cr (VI) 和Cu (II) 去除能力,并且可以重复使用.

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:

酸盐希夫基是吸附的多功能材料.
纳米复合材料为污染物清除提供了增强的性能.
有效地去除像Cr (VI) 和Cu (II) 这样的重金属对于环境保护至关重要.

研究的目的:

为了合成和表征一种新的基于皮拉的奇托桑希夫基复合材料.
为了研究复合物的吸附性能,从水溶液中去除Cr (VI) 和Cu (II).
为了阐明吸附机制,动力学和热力学.

主要方法:

用Fe3O4-MoS2纳米颗粒功能化的基于Pyrazole的奇托桑希夫基的合成.
使用X射线衍射 (XRD),扫描电子显微镜 (SEM),富里埃变换红外光谱 (FTIR),能量分散X射线光谱 (EDS) 和热重力测量分析 (TGA) 的表征.
用不同的金属离子度 (20-100毫克/升) 进行的吸附实验,以及吸附动力学和异温的分析.

主要成果:

复合材料已经成功合成和表征.
获得了200.00 mg/g的Cr (VI) 和125.00 mg/g的Cu (II) 的最大吸附能力.
吸附遵循伪二次动力学和兰木尔异热模型,表明单层吸附过程.
热力学研究显示了自发和内热吸附过程.
复合材料证明了其可重复使用性.

结论:

新型Fe3O4-MoS2功能化的基于皮拉的奇托桑希夫基复合物是Cr (VI) 和Cu (II) 去除的有效吸附剂.
该材料具有出色的吸附能力,有利的动力学和同温性行为.
吸附的自发性和内热性质,以及其可重复使用性,突出了其在废水处理应用中的潜力.

关键词:

吸附性研究吸附性研究基托桑是一种酸盐.金属离子去除的方法在MoS(2) -Fe(3) O(4) 的情况下.皮拉 (Pyrazole) 是一种可怕的药物.

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