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DOTA功能化吸附剂DOTA@Sludge@Chitosan来自回收的贝和污泥,并用于从水中去除和

Kehan Xu¹, Ting He², Long Li²

¹School of Materials Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China.

International journal of biological macromolecules

|November 20, 2023

概括

一种新的DOTA改性污泥和酸盐复合物有效地从水中去除诸如和之类的重金属. 这种可持续吸附剂具有高容量和可重复使用性,在工业废水处理中性能优于活性炭.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
水处理处理水的方法

背景情况:

工业废水通常含有有毒的重金属,如Cr6+和Pb2+.
有效地去除这些污染物对于环境保护和公共卫生至关重要.
开发高效和成本效益的吸附剂是水资源整治的一个关键挑战.

研究的目的:

为了合成和描述一种新型吸附材料,请联系DOTA@Sludge@Chitosan.
评估DOTA@Sludge@Chitosan在从水溶液中去除Cr6+和Pb2+的吸附性能.
评估开发的吸附剂的再生能力和稳定性.

主要方法:

在酸性溶液中用DOTA合成DOTA@Sludge@Chitosan通过容易处理污泥和奇托桑.
吸附剂的表面积,孔积和功能组 (氨基,基) 的表征.
吸附实验以确定Pb2+和Cr6+在20°C的去除能力,随后进行六个周期的再生试验.

主要成果:

DOTA@Sludge@Chitosan表现出高表面积 (52.009 m²/g) 和毛孔体积 (0.069 cm³/g) 的丰富的功能组.
吸附剂实现了高吸附能力:Pb2+为329.4 mg/g,Cr6+为273.3 mg/g,超过了商业活性炭.
该材料表现出极好的稳定性,并在六个吸附-脱吸周期中保持高吸附能力.

结论:

DOTA@Sludge@Chitosan是一种高效的吸附剂,可以从水中去除Pb2+和Cr6+.
碳酸和污泥成分的协同作用有助于提高其性能.
这种稳定且可重复使用的吸附剂为工业废水中的重金属整治提供了有希望的解决方案.

关键词:

吸附方式吸附方式吸附方式基托桑是一种酸盐.多塔是什么意思?多塔是什么意思?重金属是一种重金属.这是泥泥.

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