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多功能化与基于碳的纤维素酸盐膜:结构,热和光洞察铜离子吸附和检测

Altaf H Basta¹, Vivian F Lotfy¹, Aya M Salem¹

¹Cellulose & Paper Dept., National Research Centre, El Buhouth St. Dokki, 12622, Giza, Egypt.

International journal of biological macromolecules

|November 19, 2025

概括

使用石墨氧化物开发新的纤维素酸盐膜,提高了它们检测和从水中去除铜离子的能力. 这些先进材料为废水处理和环境监测提供了可持续的解决方案.

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:

纤维素酸盐 (CA) 膜被广泛使用,但需要针对特定应用进行修改.
开发有效的方法来检测和从水性介质中去除Cu2+等重金属离子对于环境保护至关重要.

研究的目的:

开发含有石墨氧化物 (GO) 和碳氧甲基石墨氧化物 (CMGO) 的化和混合纤维素酸盐膜.
评估这些膜作为用于检测和去除Cu2+的多功能平台.
调查修改对膜特性和性能的影响.

主要方法:

用长链基对CA进行表面化.
将GO和CMGO纳入CA膜.
使用FTIR,NMR,热分析 (Coats-Redfern,Broido,Horowitz-Metzger模型),光谱学和极化光学显微镜进行表征.
评估Cu2+吸附能力和传感性能.

主要成果:

通过FTIR和NMR证实了CA膜的成功化学修饰.
改造膜的增强热稳定性.
对于Cu2+检测的高灵敏度 (检测极限为10 ppm) 和显著的吸附能力 (3.6-7.3 mg/g) 通过化CA膜.
由于Cu2+的有效化,观察到光火.
在化CA中,Cu2+破坏了液晶秩序,而基于GO的混合物显示了协调诱导的排序.

结论:

化和混合CA膜对于Cu2+的检测和去除是有效的.
这些膜显示出在废水处理中基于光感应的可持续感应的潜力.
开发的材料为环境修复和对铜污染的监测提供了有希望的方法.

关键词:

碳纳米材料是一种碳纳米材料.纤维素乙酸盐的使用情况 2+) 吸附方式化的化方法光感应器可以感应光.混合膜是一种混合膜.热稳定性热稳定性

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