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将高循环木纤维转化为聚多巴胺启用吸附剂,用于高效的Cu (II) /Cd (II) 清除和废水安全

Shangpeng Liu¹, Wenji Wang^2,3, Dadong Wang⁴

¹Department of Polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, China.

Materials (Basel, Switzerland)

|March 14, 2026

概括

这项研究引入了一种新型的聚多巴胺涂层纤维 (PDA/Coir fiber) 吸附剂,用于有效去除重金属. 这种可持续材料显著提高了水中的铜和吸附率,提高了废水安全.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

重金属污染对全球环境构成重大威胁.
对于可持续的,低成本的吸附剂材料,对于水资源整治有着至关重要的需求.
传统的方法往往缺乏效率或在经济上不可行.

研究的目的:

开发和评估一个生物灵感吸收剂从回收子纤维的重金属去除.
为了研究聚多巴胺涂层纤维 (PDA/Coir纤维) 对Cu (II) 和Cd (II) 的吸附性能.
评估开发的吸附剂的安全影响和可重复使用性.

主要方法:

木纤维用聚多巴胺 (PDA) 涂层功能化.
描述技术包括SEM,FTIR,XPS和TGA,以确认PDA沉积.
进行了吸附实验,以确定容量,动力学和异热模型.
进行了细胞毒性测试,以评估废水的安全性.

主要成果:

证实了PDA的功能化,导致了显著的结构变化.
与原始子纤维相比,PDA/子纤维的吸附能力是Cu (II) 的6.84倍和Cd (II) 的12.86倍.
吸附遵循兰格穆尔等温和和伪二阶动力学,表明有效的单层结合.
吸附剂在四个周期内表现出良好的可重复使用性,并降低了溶液生物毒性.

结论:

PDA/煤炭纤维是一种高效和可持续的吸附剂,可以从水中去除Cu (II) 和Cd (II).
该材料为重金属整治提供了环保和经济有效的解决方案.
综合吸附效率和改善的废水安全性突出显示了其实际应用的潜力.

关键词:

生物安全生物安全子纤维是子纤维中的一种.重金属离子吸附重金属离子吸附聚多巴胺胺是一种多多巴胺胺.

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