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环保和高能效的浮动表面改性碳电极材料在流电极电容性去离子化中,用于重金属吸附和能量回收

T M Subrahmanya¹, Ya-Ting Chung¹, Smruthiranjan Nayak¹

¹Advanced Membrane Materials Research Center, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.

|September 26, 2025

概括

在流电极电容离离子化 (FCDI) 中修饰的活性碳显著提高了废水中的离子去除. 这一进步提高了海水淡化率和吸附能力,为更高效的水处理技术提供了潜力.

科学领域:

环境科学与工程环境科学与工程
材料科学材料科学材料科学
电化学电化学电化学

背景情况:

全球不断增长的水需求需要先进的海水淡化技术.
容量脱离离子 (CDI) 能提供节能水处理,但面临着局限性.
流电极电容脱离电离 (FCDI) 提高了CDI性能,活性碳 (AC) 的优化是关键.

研究的目的:

使用托伦斯试剂和藻酸盐 (SA) 来修改活性炭 (AC),以提高FCDI性能.
在FCDI系统中使用修改AC来研究从废水中去除离子 (Pb2+).
评估FCDI系统的能量回收和充电效率.

主要方法:

用多伦斯试剂和酸盐溶液的不同度修改活性炭.
经过修改的交流材料被用作流电极在流电极电容离离子化 (FCDI) 系统中.
测试了FCDI系统的离子 (Pb2+) 清除效率和吸附能力.
评估了FCDI系统的能量回收和充电效率.

主要成果:

与商业AC相比,经过修改的交流电流电极显示出明显增强的离子去除能力.
对于Pb2+的平均海水淡化率从0.00238增加到0.00831 mmol/m2/s.
吸附性能从0.4454增加到0.9501毫克/克.
该FCDI系统表现出有利的电化学流量电容器类属性,表明能量回收的潜力.

结论:

用托伦斯试剂和SA对AC的表面修改有效地提高了其在FCDI中的性能,以去除重金属.
开发的FCDI系统显示了从废水中有效的离子整治的希望.
FCDI的能量回收潜力表明,淡水处理的运营成本降低,使其与现有技术竞争.

关键词:

碳电极材料是碳电极材料.能量回收可以回收能量.美国FCDI 重金属的去除重金属的去除.处理水处理水处理水处理

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