Performance and Enhanced Efficiency Induced by Cold Plasma on SAPO-34 Membranes for CO2 and CH4 Mixtures.

IF 3.3 4区 工程技术 Q2 CHEMISTRY, PHYSICAL Membranes Pub Date : 2024-08-20 DOI:10.3390/membranes14080178
Fnu Gorky, Vashanti Storr, Grace Jones, Apolo Nambo, Jacek B Jasinski, Maria L Carreon
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Abstract

In this study, we investigate the influence of cold-plasma-induced enhanced performance and efficiency of SAPO-34 membranes in the separation of CO2 and CH4 mixtures. Placing the herein presented research in a broader context, we aim to address the question of whether cold plasma can significantly impact the membrane performance. We subjected SAPO-34 membranes to plasma mild disturbances and analyzed their performance in separating CO2 and CH4. Our findings reveal a notable enhancement in membrane efficiency and sustained performance when exposed to cold plasma. The pulsed plasma separation displayed improved structural integrity, and the experimental results indicated that the linear structure of CO₂ facilitates the distortion of electron clouds in response to the electric field, a property known as polarizability, which aids in effective separation. Plausible mechanistic insight indicated that the intermolecular forces facilitated an integral role in SAPO-34 membranes exhibiting strong electrostatic interactions. In conclusion, our research highlights the potential of cold plasma as a promising technique for improving the performance of SAPO-34 membranes in gas mixtures at atmospheric pressures, providing valuable insights for optimizing membrane technology in carbon capture and gas separation applications.

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冷等离子体在 SAPO-34 膜上诱导 CO2 和 CH4 混合物的性能和增效。
在本研究中,我们调查了冷等离子体对 SAPO-34 膜在分离二氧化碳和甲烷混合物时性能和效率增强的影响。将本文介绍的研究置于更广泛的背景下,我们旨在解决冷等离子体是否会显著影响膜性能的问题。我们将 SAPO-34 膜置于等离子体的轻微干扰下,分析其分离二氧化碳和甲烷的性能。我们的研究结果表明,当暴露在冷等离子体中时,膜的效率和持续性能明显提高。脉冲等离子分离显示出更好的结构完整性,实验结果表明 CO₂ 的线性结构有利于电子云在电场作用下变形,这种特性被称为极化性,有助于有效分离。合理的机理分析表明,分子间作用力在 SAPO-34 膜中发挥了不可或缺的作用,表现出强烈的静电相互作用。总之,我们的研究强调了冷等离子体作为一种有前途的技术,在大气压力下改善 SAPO-34 膜在气体混合物中的性能的潜力,为优化碳捕获和气体分离应用中的膜技术提供了宝贵的见解。
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来源期刊
Membranes
Membranes Chemical Engineering-Filtration and Separation
CiteScore
6.10
自引率
16.70%
发文量
1071
审稿时长
11 weeks
期刊介绍: Membranes (ISSN 2077-0375) is an international, peer-reviewed open access journal of separation science and technology. It publishes reviews, research articles, communications and technical notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. Full experimental and/or methodical details must be provided.
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