Synthesis, Characterization and NH₃/N₂ Gas Permeation Study of Nanocomposite Membranes

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• 作者：Ayesha Raza ; Sarah Farrukh ; Arshad Hussain
• 关键词：Nitrogen ; Cellulose acetate ; Multiwalled CNTs ; Ammonia ; Haber’s process ; Host–guest interaction
• 刊名：Journal of Polymers and the Environment
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：25
• 期：1
• 页码：46-55
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Polymer Sciences;
• 出版者：Springer US
• ISSN：1572-8900
• 卷排序：25

文摘

Carbon nanotubes have exceptional mechanical properties which make them very attractive for the development of composite membranes. In this research, NH₃/N₂ gas permeation behavior of flat sheet composite membranes was examined. The cellulose acetate-multiwalled carbon nanotubes composite membranes were synthesized using solution casting method. The morphology and dispersion of carbon nanotubes were observed through SEM. However, the composite membranes were also characterized using several analytical techniques such as X-ray diffraction analysis, tensile testing analysis, and thermal gravimetric analysis. Characterization of these membranes depicted that carboxylic group functionalized MWCNTs are extremely compatible with CA. The permeation experiments were performed with NH₃ and N₂ to explore the host–guest interaction of MWCNTs with chosen gases. The permeability of NH₃ was found pronounced compared to N₂. The NH₃/N₂ selectivity up to 90 was documented.