在废弃牛上支持Zn-Al层叠的双氧化物,作为一种高效的吸收剂,用于从污染水中去除阴离子染料
Md Saif Hasan1, Aneek Krishna Karmakar2
1Department of Applied Chemistry and Chemical Engineering, University of Rajshahi, Rajshahi, 6205, Bangladesh.
Environmental science and pollution research international
|October 8, 2024
概括
这项研究开发了来自牛废物的Zn-Al层双氧化物 (LDH) 功能化生物炭. 增强的材料显示出优越的甲基色染料吸附能力,为废水处理提供了可持续的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 吸附科学 吸附科学
背景情况:
- 废水被离子染料污染给环境带来了风险.
- 来自废物材料的生物炭提供了一个可持续的吸附平台.
- 层状双氧化物 (LDHs) 具有出色的吸附性能.
研究的目的:
- 从牛中合成和描述Zn-Al LDH功能化的生物炭.
- 为了评估功能化生物炭对甲基色 (MO) 染料的吸附性能.
- 研究各种参数对吸附过程的影响.
主要方法:
- 共同沉方法用于LDH功能化.
- 牛的低温热解 (300°C) 用于生物炭合成.
- 综合性材料表征 (TGA,FTIR,EDS,SEM,XRD) 进行.
- 与甲基色 (MO) 相比的吸附性研究.
主要成果:
- 具有LDH功能化的生物炭表现出明显更高的MO吸附能力 (400 mg/g),而不是原始生物炭 (212 mg/g).
- 吸附遵循弗洛伊德利希等温和和伪二次动力学对功能化生物炭.
- 热力学数据表明内热吸附与随机性增加.
结论:
- Zn-Al LDH功能化大大提高了生物炭的染料吸附效率.
- 生物炭多孔性和LDH特性的协同效应推动了增强的吸附.
- 改性牛生物炭是工业染料废水整治的有希望的吸收剂.
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