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合成高分支聚胺胺基基托气凝及其有效吸附Cr (VI) 从水溶液中

Zhen Zhang¹, Yuxin Zai¹, Hao Zhang¹

¹College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, China.

International journal of biological macromolecules

|April 23, 2025

概括

超分支聚胺胺功能化奇托气凝通过化学吸收有效地去除Cr. 这些HPCSA材料具有很高的吸附能力和废水处理应用的潜力.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
纳米技术纳米技术

背景情况:

六价 (Cr(VI)) 对环境和健康构成重大风险.
开发有效的吸附剂来去除Cr (VI) 对于环境修复至关重要.

研究的目的:

为了合成和表征高分支多胺功能化奇托气凝 (HPCSA).
研究HPCSA在水溶液中去除Cr (VI) 的吸附性能和机制.

主要方法:

用于HPCSA合成的冷干燥方法.
使用FT-IR,SEM,XRD,XPS和MIP进行表征.
吸附研究包括动力学,异热和热力学.
使用FT-IR,DFT和XPS阐明机制.

主要成果:

HPCSA 呈现出一个多孔结构,有丰富的活性位点.
在pH3.3下,最大的Cr (VI) 吸附能力达到862.07 mg/g.
吸附遵循伪二阶动力学和兰木尔异热模型,表明化学吸附.
在4个周期内,HPCSA表现出良好的可重复使用性.

结论:

HPCSA是一种高效的吸附剂,用于去除CrVI.
吸附机制包括物理捕获和Cr6的化学减少.
在废水处理中的实际应用方面,HPCSA显示出前景.

关键词:

的吸附 (VI) 的吸附.基托桑气凝是基托桑气凝中的一种.超分支聚合物的高分支聚合物.

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