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通过使用磁性基托基生物聚合物,在广泛的pH范围内同时进行Cr (VI) 降解和Cr (III) 封存

Peiyuan Xiao¹, Junqing Xu², Hongliang Shi³

¹State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; UNEP-Tongji Institute of Environment for Sustainable Development, Tongji University, Shanghai 200092, China; Chongqing Tongji Research Institute Co., Ltd, Chongqing 401123, China.

International journal of biological macromolecules

|October 12, 2023

概括

一种基于奇托桑的新型磁显微圈有效地通过减少和隔离在广泛的pH范围内从废水中去除有毒的六价 (Cr(VI)). 这种材料提供了一个成本效益和环保的解决方案,用于污染.

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:

六价 (Cr(VI)) 对环境和健康构成重大风险.
现有的Cr(VI) 清除污染方法通常需要低pH值,从而限制了效率和成本效益.
同时减少Cr (VI) 和封存Cr (III) 是废水处理的理想方法.

研究的目的:

开发一种基于酸盐的磁性多孔微球 (PPy@PMCS),以高效地去除CrVI.
为了在广泛的pH范围内实现同时将Cr (VI) 降解为Cr (III) 并对Cr (III) 进行封存.
评估开发的废水处理材料的性能和可重复使用性.

主要方法:

基于基托桑的磁性多孔微球 (PPy@PMCS) 的合成.
吸附实验,以评估在不同pH值下Cr (VI) 的去除效率和能力.
材料结构和性能的表征.
再生和可重复使用性测试.

主要成果:

在pH值2.0下,PPy@PMCS显示了330.42 mg/g的高Cr (VI) 吸附能力.
显著的吸附能力167.82毫克/克甚至在近中性pH (6.0) 时也得到了实现.
这种材料有效地将Cr6降低到Cr3并通过基托复合将得到的Cr3隔离起来.
磁微球很容易被分离和再生,可用于多种用途.

结论:

开发的PPy@PMCS是一种高效和多功能吸附剂,用于从废水中去除Cr (VI).
这种基于生物聚合物的材料为污染提供了具有成本效益和环保的解决方案.
该材料在广泛的pH范围内的性能及其可重复使用性凸显了其在废水处理中的实际应用潜力.

关键词:

吸附方式吸附方式吸附方式基托桑是一种酸盐.减少了Cr (VI) 的减少.聚乙烯 (Polypyrrole) 是一种聚乙烯 (Polypyrrole) 的一种.污水处理污水处理污水处理

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