可持续的Pb2+吸附使用易于分离的酸盐衍生金属合碳气凝珠
Shaimaa T El-Wakeel1, Rehab A Omar1, Emad K Radwan1
1Water Pollution Research Department, National Research Centre, 33 El Buhouth St, Dokki, 12622, Giza, Egypt.
International journal of biological macromolecules
|October 18, 2025
概括
一种新型的--共碳气凝 (Co-Zn-CA) 有效地从水中去除 (Pb2+). 这种可持续材料具有很高的吸附能力和快速去除,用于废水处理.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 越来越多的有毒金属污染水需要先进的清除技术.
- 酸衍生材料为吸附剂开发提供了一个可持续的平台.
研究的目的:
- 为了合成和评估酸盐衍生金属合碳气凝珠的 (Pb2+) 吸附.
- 研究开发材料的吸附性能和机制.
主要方法:
- 使用与 (Co), (Zn) 或两者 (CoZn) 交联的藻酸盐合成金属合碳气凝珠.
- 使用SEM,EDX,ATR-FTIR,XPS和吸附分析进行表征.
- Pb2+吸附实验以确定容量,动力学和影响因素 (pH,离子强度).
主要成果:
- 同-Zn-co-doped碳气凝 (Co-Zn-CA) 呈现出高表面积 (50 m2/g) 和优越的Pb2+吸附能力 (157.4 mg/g).
- 吸附跟随伪二次动力学,表明化学吸收,在pH值5.5.时是最佳的.
- 在90分钟内,使用1.0g/L的Co-Zn-CA,几乎完全消除了Pb2+ (99.2%).
结论:
- Co-Zn-CA 是一种高效和可持续的吸附剂,用于从水溶液中去除Pb2+.
- 材料的多孔结构和表面功能组促进了离子交换和复杂化机制.
- 该研究表明了Co-Zn-CA在实际废水处理应用中的潜力.
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