四元化交叉连接的桃糖糖多糖作为吸附剂,用于从水溶液中快速和选择性地去除离子染料
Haicun Yang1, Mingyue Shi1, Wenzhong Ma2
1Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Changzhou University, Changzhou, Jiangsu 213164, PR China.
International journal of biological macromolecules
|March 1, 2025
概括
修改的桃子多糖 (PGP) 显示了对染料的增强吸附. 富含阴离子的PGP (QCPGP) 为废水处理提供了更高的容量,更快的速度和更好的稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物科学 聚合物科学
背景情况:
- 桃子多糖化物 (PGP) 在吸附能力,速度,选择性和稳定性方面具有局限性.
- 开发改性PGP材料对于废水中有效的染料去除至关重要.
研究的目的:
- 合成和描述富含氨基酸的交联PGP (ACPGP) 和富含阴离子的PGP (QCPGP).
- 为了评估和比较PGP,ACPGP和QCPGP的吸附性质,用于各种染料.
主要方法:
- 通过PGP的交叉链接来合成ACPGP.
- 从ACPGP中制备QCPGP,使用糖三甲基氨基化物 (GTAC) 和四级化.
- 使用阴离子染料 (MV,MB) 和阴离子染料 (NC,TTZ) 的吸附研究,用动力和异温模型 (伪第一阶,伪第二阶,D-R,Langmuir) 进行分析.
主要成果:
- 与原生PGP相比,ACPGP和QCPGP的染料吸附能力显著提高.
- QCPGP实现了高最大吸附能力 (Qm),NC为1304.3 mg/g,TTZ为1136.7 mg/g. 这是一个非常好的结果.
- QCPGP显示了快速吸附动力学 (10分钟平衡),增强了环境稳定性,选择性和再生效率.
结论:
- 开发的ACPGP和QCPGP材料有效地克服了原生PGP对染料吸附的局限性.
- 在吸附能力,速度,稳定性和再生方面,QCPGP表现出卓越的性能,这表明工业废水处理的巨大潜力.
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