从有氧颗粒污泥中提取的等级多孔生物炭,用于高性能膜电容脱离
Yurong Zhang1, Xudong Bu1, Yajun Wang1
1School of Civil Engineering, Lanzhou University of Technology, Lanzhou, 730050, China.
Environmental science and ecotechnology
|August 28, 2023
概括
研究人员从废水污泥中制造了一种可持续的,低成本的生物炭,用于膜电容脱离离电极 (MCDI). 这种生物炭在海水淡化方面表现出很高的性能,为昂贵的活性炭提供了一种绿色的替代方案.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 电化学 电化学 电化学
背景情况:
- 膜电容去化 (MCDI) 是一个有前途的海水淡化技术.
- 电极材料的特性显著影响MCDI的性能.
- 商业上可用的活性炭电极通常是昂贵的.
研究的目的:
- 为MCDI开发一个具有成本效益和可持续的电极材料.
- 使用有氧颗粒污泥 (AGS) 作为生物炭生产的前体.
- 在MCDI中评估AGS衍生生物炭的性能.
主要方法:
- 通过碳化和激活,从AGS合成了分层多孔的生物炭.
- 生物炭的表征包括表面积,微孔面积和体积分析.
- 使用合成的生物炭电极评估了MCDI细胞的性能.
主要成果:
- 生物炭表现出高特异性表面积 (1822.07 m2 g-1),具有显著的微孔性.
- 生物炭电极实现了 34.35 mg g-1.1 的特定吸附能力.
- 性能与商业活性炭电极相当.
结论:
- 建立了一种绿色和可持续的方法,用于从AGS中生产高性能生物炭.
- 开发的生物炭是MCDI电极的可行,低成本的替代品.
- 这种方法为提高海水淡化效率提供了潜力.
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