制备基于树纤维素的水凝及其从水溶液中去除Cd (II) 的效率
Fengrong Zhang1, Cuilan Zhang2, Jia Teng3
1School of Chemistry and Chemical Engineering, Heze University, Heze 274015, China
Journal of water and health
|June 30, 2023
概括
与维生素C/碳甲基木木木粉水凝 (VC/CMPP) 相比,聚酸/碳甲基木木粉水凝 (PASP/CMPP) 从废水中提取更好的重金属. 这些新的水凝显示出作为有效的环境吸附剂的前景.
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:
- 由于重金属污染,工业废水带来了重大的环境挑战.
- 吸附材料为从污染水源中去除有毒重金属提供了可行的解决方案.
研究的目的:
- 为了合成和描述用于重金属去除的新型水凝吸附剂.
- 为了比较聚酸/碳甲基木 Sawdust (PASP/CMPP) 和亚酸/碳甲基木 Sawdust (VC/CMPP) 的吸附效率,用于 (II) 离子的水凝.
主要方法:
- 使用水性聚合制备PASP/CMPP和VC/CMPP水凝,使用性木粉 (CMPP) 作为基质.
- 扫描电子显微镜 (SEM) 和BrunauerEmmettTeller (BET) 分析用于材料表征.
- 进行了批量实验,以评估用于Cd (II) 除去的水凝的吸附性能.
主要成果:
- 与VC/CMPP水凝相比,PASP/CMPP水凝具有更高的孔积和更多的松散孔.
- 在相同的条件下,PASP/CMPP从模拟废水中显著更好地吸附Cd (II),而不是VC/CMPP.
- 吸附动力学遵循准二次动力学,异热量与兰格穆尔和弗洛恩德利希模型保持一致,表明固体度效应.
结论:
- PASP/CMPP水凝是有效的吸附剂,可以从废水中去除Cd (II).
- 开发的PASP/CMPP复合材料代表了对工业废水处理的有希望的新一类环境吸附剂.
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