绿色交叉连接与氧化藻酸盐,以增强Mo(VI) 吸附在藻酸盐基膜中
Xianyi Yang1, Zhe Zhang1, Jinshuai Liu1
1College of Environment and Resources, Guangxi Normal University, Guilin 541004, PR China.
International journal of biological macromolecules
|March 16, 2025
概括
氧化藻酸盐 (OSA) 膜有效地从水中去除和回收. OSA是一个绿色交叉连接器,为废水处理和材料合成提供可持续的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物化学 聚合物化学
背景情况:
- 开发绿色和无毒的交联剂对于可持续的材料合成至关重要.
- 传统的交叉连接剂,如甲 (GA),带来了环境和健康问题.
- 酸为新型交联剂提供一种可生物降解和丰富的前体.
研究的目的:
- 合成氧化藻酸盐 (OSA) 作为绿色交叉连接剂.
- 使用OSA制备和表征藻酸盐/聚乙烯胺胺膜.
- 评估OSA膜在除去和回收方面的效率.
主要方法:
- 甲基酸盐被氧化使用酸盐产生OSA.
- 里埃变换红外光谱法 (FTIR) 证实了化基组的存在.
- 扫描电子显微镜 (SEM) 和X射线光电子光谱 (XPS) 分析了膜形态和组成.
- 进行了吸附实验,以确定Mo(VI) 的去除能力和动力学.
主要成果:
- FTIR和Schiff基地形成证实了与OSA的成功交叉连接.
- SEM揭示了有利于Mo(VI) 吸附的多孔表面结构.
- 通过氨基群协调和静电吸引,XPS表示吸附.
- 在50°C时,OSA膜对Mo (VI) 的最大吸附能力为452.112 mg/g.
- 吸附遵循伪二阶动力学,是自发的.
- 膜在模拟废水中表现出了出色的机械强度,耐用性和可重复使用性.
结论:
- OSA是一种可行的绿色交叉连接剂,用于制备有效的膜,用于Mo(VI) 清除和恢复.
- 开发的OSA膜显示了在工业废水处理中实际应用的巨大潜力.
- OSA提供了一个可持续和可比的替代传统交叉连接器,如GA.
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