Amine-Based Nanofibrillated Cellulose As Adsorbent for CO2 Capture from Air

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• 作者：Christoph Gebald ; Jan Andre Wurzbacher ; Philippe Tingaut ; Tanja Zimmermann ; Aldo Steinfeld
• 刊名：Environmental Science & Technology
• 出版年：2011
• 出版时间：October 15, 2011
• 年：2011
• 卷：45
• 期：20
• 页码：9101-9108
• 全文大小：959K
• 年卷期：v.45,no.20(October 15, 2011)
• ISSN：1520-5851

文摘

A novel amine-based adsorbent for CO₂ capture from air was developed, which uses biogenic raw materials and an environmentally benign synthesis route without organic solvents. The adsorbent was synthesized through freeze-drying an aqueous suspension of nanofibrillated cellulose (NFC) and N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane (AEAPDMS). At a CO₂ concentration of 506 ppm in air and a relative humidity of 40% at 25 掳C, 1.39 mmol CO₂/g was absorbed after 12 h. Stability was examined for over 20 consecutive 2-h-adsorption/1-h-desorption cycles, yielding a cyclic capacity of 0.695 mmol CO₂/g.