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三乙烯二胺功能化酸/甲基酸盐复合气凝及其吸附性能比Cu2+和Pb2高

Hai Li¹, Xing Wang², Shilu Zhang¹

¹School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, PR China.

International journal of biological macromolecules

|October 12, 2025

概括

一种新的双网气凝吸附剂有效地从水中去除铜和等重金属. 这种材料具有很高的吸附能力和稳定性,为废水整治提供了一个有前途的解决方案.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

重金属污染对人类健康和生态系统构成重大风险.
有效的废水处理策略对于环境保护至关重要.

研究的目的:

开发和评估一种新型的双网气凝吸附剂 (STT),用于从水中去除Cu2+和Pb2+.
为了研究STT吸附剂的吸附性能和机制.

主要方法:

使用改性酸 (TA) 和藻酸盐 (SA) 制造双网络气凝 (STT).
研究影响吸附的因素,包括吸附动力学,热力学和异热.
使用XPS和FT-IR进行吸附机制的表征.

主要成果:

与藻酸盐 (CA) 气凝相比,STT气凝表现出增强的机械性能 (14.0 kg·cm-2).
对Cu2+的最大吸附能力达到304.30 mg·g−1,对Pb2+的最大吸附能力达到422.80 mg·g−1.
吸附剂在10个再生周期后保持了高的去除率 (>84%) ,表明可重复使用性良好.

结论:

STT气凝是一种高效且可重复使用的吸附剂,用于从废水中去除重金属.
吸附过程是自发的,遵循单层化学吸附机制,涉及离子交换和复杂化.
STT在重金属修复中显示了实践应用的巨大潜力.

关键词:

气凝吸附剂是一种气凝吸附剂.具有很高的吸附能力.改性坦尼克酸是什么? 改性坦尼克酸是什么甲基酸盐的使用方法

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