关于制备基于的改性煤及其吸附染料特征的研究
Yihan Wang1, Yanrong Dong1, Junli Shao2
1College of Civil Engineering, Liaoning Technical University, Fuxin 123000, China.
Molecules (Basel, Switzerland)
|May 25, 2024
概括
这项研究引入了基于的改性煤 (Ca-CG),用于有效的染料废水处理. Ca-CG对马拉绿和其他染料具有很高的吸附性,这表明它具有环境修复的潜力.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 染料废水带来了重大的生态风险.
- 有效的处理方法对于环境保护至关重要.
- 煤是一种丰富的工业固体废物.
研究的目的:
- 开发一种新型吸附剂,用改造的煤炭来去除染料.
- 为了研究基于的改性煤 (Ca-CG) 在各种染料上的吸附性能.
- 为了阐明吸附机制和动力学.
主要方法:
- 从煤和CaCl2中制备Ca-CG.
- 吸附实验用马拉绿色,甲蓝色,水晶紫色和甲基紫色进行.
- 使用动力学,异热,热力学,FTIR,XRD和SEM进行分析.
主要成果:
- 在吸附的顺序下,Ca-CG有效地去除了四种类型的染料:马拉绿色>水晶紫色>甲蓝色>甲基紫色.
- 吸附遵循第二阶动力学和弗洛伊德利希模型,表明化学吸附和多分子层吸附.
- 表面沉,静电作用和化被确定为马拉绿色吸附的关键机制.
结论:
- 在染料废水处理中,Ca-CG是一种有前途的吸附剂.
- 吸附过程是自发的和高效的.
- 在Ca-CG中,基材料在染料去除中起着至关重要的作用.
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