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基于胺装饰的甲基烯酸的逆化聚硫化物,有效地从废水中去除
Ali Shaan Manzoor Ghumman1,2, Rashid Shamsuddin1,2, Zeid A Alothman3
1Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia.
ACS omega
|February 5, 2024
概括
一种胺浸的新型共聚合物有效地消除了污染. 这种先进的吸附剂表现出卓越的性能和高容量,为有毒重金属的环境整治提供了有希望的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 污染对全球健康构成重大风险.
- 现有的吸附剂在升级和效率方面面临挑战.
- 新型高性能吸附剂的开发对于环境修复至关重要.
研究的目的:
- 为了合成和表征一种新型的氨基浸逆化共聚合物,以有效去除.
- 评估开发的吸附剂的吸附能力和机制.
- 为了比较功能化共聚合物的性能与其非功能化对应物.
主要方法:
- 通过使用硫和甲基酸的逆化合成聚S-MA.
- 将聚乙烯胺 (PEI) 浸在聚S-MA上,以产生氨@聚S-MA.
- 使用富里埃变换红外光谱 (FTIR) 和扫描电子显微镜 (SEM) 进行了表征.
- 使用伪二阶和Redlich-Peterson模型进行吸附实验和动力分析.
主要成果:
- FTIR证实了共聚合物形成和PEI浸.
- SEM揭示了一个复合的多孔形态.
- 与胺浸的共聚合物[amine@poly(S-MA]相比,其性能比聚胺S-MA高出20%.
- 实现了高吸附能力的44.7 mg/g.
- 吸附遵循伪二阶动力学,表明涉及氨基群的化学吸附.
- 吸附主要发生在同质表面上的单层.
结论:
- 新型胺浸逆化共聚物是一种高效的吸附剂,用于去除.
- 与聚乙烯胺的功能化显著提高了吸附能力.
- 由氨基团驱动的化学吸收是主要的机制,这表明有针对性的整治的潜力.
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