通过响应表面方法来确定从水中去除Cu(II) 的模型,使用mercaptoacetyl aminomethy polyacrylamide作为花剂
Shengji Jiang1, Gang Wang1, Lulu Wang1
1School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, PR China.
Environmental pollution (Barking, Essex : 1987)
|April 28, 2025
概括
一种新的花粉剂,mercaptoacetyl aminomethy polyacrylamide (MAAPAM),可以有效地去除重金属. 在优化的条件下,可以实现99.21%的Cu (II) 去除,化和吸附机制驱动该过程.
科学领域:
- 环境化学环境化学
- 聚合物科学 聚合物科学
- 水处理技术水处理技术
背景情况:
- 重金属离子污染对环境和健康构成重大风险.
- 化是从水中去除污染物的关键过程.
- 开发新型,高效的花剂对于有效的水资源整治至关重要.
研究的目的:
- 为了合成和表征一种新型的花粉剂,mercaptoacetyl aminomethy polyacrylamide (MAAPAM).
- 通过响应表面方法 (RSM) 使用MAAPAM优化Cu(II) 清除条件.
- 为了研究MAAPAM对Cu (II) 移除的花化机制.
主要方法:
- 使用烯胺和其他前体合成MAAPAM.
- 使用RSM优化Cu (II) 清除,改变Cu (II) 度,pH和MAAPAM剂量.
- 评估二次回归模型的适用性和共存离子的影响.
- 分析花形态和碎形维度,以阐明去除机制.
主要成果:
- 在最佳条件下,MAAPAM在最佳条件下 (7.5 mg/L Cu(II,pH 6.1,5.5:1 MAAPAM:Cu(II) 比例) 实现了最大的Cu(II) 去除效率99.21%.
- RSM模型的预测显示出高准确度,在最佳条件下相对误差低于0.5%,在共存离子存在时在±5%以内.
- 在MAAPAM的硫基和Cu (II) 之间的化被确定为主要的去除机制,得到了吸附桥梁和网状扫描的支持.
结论:
- 马帕姆是从水溶液中去除Cu (II) 的高效花剂.
- RSM是优化花流程的可靠工具.
- 该研究阐明了MAAPAM介导的重金属去除所涉及的关键机制,突出了其在水处理方面的潜力.
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