从水溶液中通过FeOOH@coal gangue复合物吸附:性能和机制
Min Chen1,2, Yuan Sun1, Jingwei Niu1
1School of Earth and Environment, Anhui University of Science and Technology, Huainan, People's Republic of China.
Environmental technology
|August 23, 2023
概括
一种由铁氧化和煤炭组成的新型复合材料有效地从水中去除. 这种环保吸附剂显示出高容量和水净化应用的潜力.
科学领域:
- 环境科学 环境科学
- 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:
- 水中的污染是一个关键的环境和健康问题.
- 可持续利用工业副产品,如煤炭,是必不可少的.
- 开发有效的吸附剂来去除是一种关键的研究领域.
研究的目的:
- 为了合成一种复合材料 (FeOOH@煤) 用于的吸附.
- 为了研究复合材料的吸附性能和机制.
- 评估材料在实际水处理中的潜力.
主要方法:
- 合成FeOOH@煤炭结复合物.
- 在不同的pH值,接触时间和初始度下进行批量吸附实验.
- 吸附动力学,同热和热力学分析.
- 使用XRD,FTIR和XPS进行表征以阐明吸附机制.
主要成果:
- FeOOH@coal gangue复合物有效地吸附,在pH值为3.0的情况下,其最大容量为185.94 mg/g.
- 吸附在初始As(V) 度为60mg/L和接触时间为180-240小时时是最佳的.
- 常见的离子 (酸盐,硫酸盐和碳酸盐) 的存在降低了吸附效率.
- 吸附遵循伪二阶和兰迈尔模型,表明化学吸附.
- 电静电吸引,复杂化和沉被确定为主要的去除机制.
结论:
- FeOOH@coal gangue复合物是一种高效和可持续的吸附剂,用于去除.
- 该材料显示了在污染水处理中实际应用的巨大潜力.
- 这项研究强调了用于环境整治的工业废物再利用的价值.
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