硫化活性炭增强粉基气凝的机理和吸附动力学研究,用于高效吸附阴离子和阴离子染料
Shiji Shao1, Zikai Xu1, Shan Xia1
1Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, PR China.
International journal of biological macromolecules
|March 29, 2025
概括
这项研究开发了一种基于粉的新型气凝 (CAA/SAC),用于有效地从废水中去除染料. 气凝具有较高的吸附能力和对阴离子染料的选择性,为复杂的染料废水处理提供了有前途的解决方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 聚合物科学 聚合物科学
背景情况:
- 基于粉的气凝由于其多孔结构,具有染料吸附的潜力.
- 现有的粉气凝在复杂染料废水的吸附能力和选择性方面面临限制.
研究的目的:
- 开发一种基于粉的新型气凝,具有增强的吸附特性,用于去除染料.
- 为了提高复杂废水中阴离子染料的气凝的选择性.
主要方法:
- 通过UV诱导的基聚聚合,将酸 (AA) 和酸盐 (AS) 植入甲粉 (CMS) 上.
- 将修改后的CMS与硫化活性炭 (SAC) 结合起来,制造CAA/SAC气凝.
- 描述气凝的密度,多孔度,膨胀能力和吸附性能.
主要成果:
- 这种CAA/SAC气凝具有低密度 (0.29g/cm3),高孔径 (86.48%) 和高膨胀能力 (60.78g/g).
- 气凝证明了选择性吸附阴离子染料,甲蓝的容量为136.43毫克/克,明显高于阴离子甲基色 (69.31毫克/克).
- 吸附动力学遵循伪二次和兰格穆尔等温模型.
结论:
- 开发的CAA/SAC气凝有效地从废水中去除染料分子.
- 这种气凝显示出选择性处理复杂染料废水的有希望的潜力.
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