基于酸盐的吸附剂:易于制造,异常有效去除阳离子染料和吸附机制
Yao Hui1, Rukuan Liu2, Jingwen Lan1
1School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, Henan 471003, PR China.
International journal of biological macromolecules
|June 3, 2024
概括
一种基于酸盐 (SA) 的新型吸附剂,用聚乙烯胺 (PEI) 和聚乙烯糖醇二甲基乙烯 (PEG) 功能化,在从废水中去除阴离子染料方面表现出高效率. 这种环保材料具有出色的吸附能力和可重复使用性,凸显了其在工业废水处理方面的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 酸 (SA) 是一种可再生的生物聚合物,具有用于废水处理的潜力.
- 基于化石的资源带来了环境挑战,需要可持续的替代方案.
- 为离子染料开发高效的吸附剂对于净水至关重要.
研究的目的:
- 开发和描述一种新的SA/PEI/PEG吸收剂.
- 为了研究SA/PEI/PEG对阳离子染料刚果红 (CR),阿米多黑-10B (AB-10B) 和酸蓝-25 (AB-25) 的吸附性能.
- 探索开发的吸附剂的吸附机制和可重复使用性.
主要方法:
- 一凝策略,从水溶液中合成SA/PEI/PEG吸附剂.
- 系统地调查影响着染料吸附的吸附剂因素.
- 在不同条件下 (温度,pH,振动) 进行的吸附实验,并使用动力学,同热学和热力学模型进行分析.
主要成果:
- SA/PEI/PEG表现出高吸附能力:CR (2782毫克g-1),AB-10B (1369毫克g-1),和AB-25 (4221毫克g-1). 这两种吸附能力均具有较高的吸附能力.
- 在所有测试的染料中,吸附剂实现了高去除效率 (>90%).
- 在六个吸附-脱附周期中证明了特殊的可重复使用性.
结论:
- 这种SA/PEI/PEG吸附剂提供了一种易于制造的制造方法,并且在离子染料去除方面具有卓越的性能.
- 结合和静电吸引是驱动吸附过程的关键机制.
- 该吸附剂在工业废水净化中的实际应用方面显示出显著的希望.
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