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Electrospinning-based nanofiber architectures for outstanding CO2 capture
Separation and Purification Technology ( IF 8.1 ) Pub Date : 2023-05-27 , DOI: 10.1016/j.seppur.2023.124202
Sangmo Kang , Jungho Hwang , Jeong Hoon Byeon

The worsening climate change has made the development of alternative and sustainable technologies to achieve carbon neutrality a pressing issue. Numerous strategies for carbon dioxide (CO2) capture/conversion and relevant material preparation have been dealt with on a case-by-case basis. Therefore, a reconfigurable process to secure optimal procedures and materials is urgently required to reduce CO2 emissions in a convenient, rapidly implementable manner. On this account, this study attempted to construct polyethylenimine (PEI)/cerium oxide (CeO2)/activated carbon nanofibers (ACNFs) as a reliable CO2 adsorbent from an electrospinning (ES)-based architecting as a modular process to accelerate their field applications because adsorption has outstanding advantages for CO2 capture, such as process simplicity, wide operational range, low cost, and stable performance. By selecting ES with commercially available materials (PEI (providing CO2 chemisorption), cerium nitrate hexahydrate (CO2 selectivity), and polyacrylonitrile (base of porous nanofibers)), a composite nanofibrous architecture (PEI/CeO2/ACNFs) with outstanding CO2 capture can be achieved by simple process manipulation (manipulating the electrical polarity applied to the nozzle and concentration of the cerium nitrate for the ES). This study may provide a reconfigurable manufacture to ensure a reliable adsorbent for CO2 capture and base materials for CO2 conversion from electro- and photocatalysis.



中文翻译:

基于静电纺丝的纳米纤维结构可实现出色的 CO2 捕获

日益恶化的气候变化使得开发替代和可持续技术以实现碳中和成为一个紧迫的问题。二氧化碳 (CO 2 ) 捕获/转化和相关材料制备的多种策略已根据具体情况进行了处理。因此,迫切需要一种可重构工艺来确保最佳程序和材料,以方便、快速实施的方式减少 CO 2排放。因此,本研究试图构建聚乙烯亚胺(PEI)/氧化铈(CeO 2)/活性碳纳米纤维(ACNFs)作为可靠的CO 2将基于静电纺丝 (ES) 的吸附剂设计为模块化工艺以加速其现场应用,因为吸附在 CO 2捕获方面具有突出的优势,例如工艺简单、操作范围广、成本低和性能稳定。通过使用市售材料(PEI(提供 CO 2化学吸附)、六水合硝酸铈(CO 2选择性)和聚丙烯腈(多孔纳米纤维的基础)选择 ES,复合纳米纤维结构 (PEI/CeO 2 /ACNFs) 具有出色的 CO 2个捕获可以通过简单的过程控制(控制施加到喷嘴的电极性和用于 ES 的硝酸铈浓度)来实现。该研究可提供可重构制造,以确保可靠的 CO 2捕获吸附剂和电催化和光催化转化 CO 2的基础材料。

更新日期:2023-05-31
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