多功能多糖结构作为绿色吸收剂,有效地从水中去除和预先缩类醇:实验和建模方法
Nacer Ferrah1,2, Djamila Merghache3, Mustapha Chabane4
1University Centre Salhi Ahmed of Naâma, BP 66, 45000, Naâma, DZA, Algeria. ferrahnacer@yahoo.fr.
概括
研究人员开发了一种新型的奇托/酸-聚乙烯胺--酸胺酸 (CHIT/ALG-PEIPPAA) 矩阵,用于有效地从废水中去除类. 这种环保吸附剂具有很高的吸附能力和良好的可重复使用性,为净化水提供了有前途的解决方案.
科学领域:
- 环境科学 环境科学
- 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:
- 人们越来越担心水污染,因此需要先进的修复材料.
- 多糖因其环保性质和有效去除化等污染物的效率而闻名.
- 开发新的可生物降解的聚合物矩阵对于可持续的水净化至关重要.
研究的目的:
- 开发一种三功能多糖体结构,CHIT/ALG-PEIPPAA,用于有效地从废水中去除.
- 研究物理化学参数对吸附过程的影响.
- 评估开发的吸附剂的吸附能力,动力学,热力学和可重复使用性.
主要方法:
- 合成了一种奇托/酸-聚乙烯胺--酸胺基酸 (CHIT/ALG-PEIPPAA) 矩阵.
- 使用SEM,FTIR和泽塔电位测量进行表征.
- 在不同的pH值,时间,度,温度和离子强度下进行吸附实验.
- 动力学,异热学和热力学分析.
- 再生和可重复使用性研究.
主要成果:
- 该CHIT/ALG-PEIPPAA吸附剂表现出异质形态,具有较高的正面电荷.
- 在pH值为4.4时,在伪二次动力学和兰木尔异热模型的基础上,发生了最佳的醇去除.
- 4-二醇的最大吸附能力达到118 mg/g,而2,4-二醇的最大吸附能力达到249 mg/g.
- 吸附过程是外热的和自发的,使用盐酸 (91%脱吸) 有效的再生.
结论:
- CHIT/ALG-PEIPPAA矩阵是一种高效且可重复使用的烯吸附剂.
- 该研究提供了最佳条件,并证明了该材料在废水处理方面的潜力.
- 这种可生物降解的聚合物提供了一种可持续的方法来缓解水体中烯污染.
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