烤启发的孔隙调节策略,用于超高效率的阴离子/离子染料吸附吸附的层次性多孔碳
1Key Laboratory of Wood Material Science and Application, Ministry of Education, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China; Center for Water and Ecology, Tsinghua University, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
Bioresource technology
|January 16, 2024
概括
废弃的大豆粉被转化为大豆粉活性炭 (SAC),以有效地去除污染物. 这种多孔碳显示出对染料的高吸附能力和对废水处理应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 将废物转化为增值产品是可持续发展的关键.
- 多孔碳是环境修复的有效吸附剂.
- 从废物中开发高效的吸附剂既解决了废物管理问题,也解决了污染控制问题.
研究的目的:
- 从废弃的豆粉中合成具有层次性多孔结构的活性炭 (SAC).
- 评估SAC对常见染料污染物的吸附性能.
- 探索SAC在工业废水处理中的潜力.
主要方法:
- 豆粉经过热改造,产生活性炭 (SAC).
- 描述了SAC的孔隙结构和特定表面积.
- 测量了甲蓝 (MB) 和甲 (MO) 的吸附能力和动力学.
- 进行了动态吸附和再生研究.
主要成果:
- SAC-3-800表现出超高的特定表面积 (3536.952 m2/g) 和一个层次化的孔隙结构.
- SAC-3-800显示出异常的吸附能力:MB (3015.59毫克/克),MO (6486.30毫克/克) 和混合染料 (8475.09毫克/克).
- 观察到快速吸附动力学 (∼30分钟) 和出色的再生性能.
结论:
- 从废弃大豆粉中合成的等级多孔SAC为染料提供了优越的吸附性能.
- 这种方法为废水处理和废物利用提供了一种可持续的方法.
- 在工业染料废水处理中,SAC显示了实践应用的巨大潜力.
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