Amine-Based Nanofibrillated Cellulose As Adsorbent for CO2 Capture from Air
Amine-Based Nanofibrillated Cellulose As Adsorbent for CO2 Capture from Air
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DOI：
10.1021/es202223p
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发表时间：
2011-10-15
影响因子：
11.4
通讯作者：
Steinfeld, Aldo
中科院分区：
文献类型：
--
作者：
Gebald, Christoph;Wurzbacher, Jan Andre;Steinfeld, Aldo
开发了一种新型的胺基吸附剂，它利用生物原料和一条环境友好的合成路线，不使用有机溶剂，可以从空气中捕获二氧化碳。采用冷冻干燥法制备了纳米纤维纤维素和N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane的水悬浮液。当空气中二氧化碳浓度为506ppm，25℃相对湿度为40%时，12h后吸收率为1.39mmolCO2/g。在连续20次的2 h吸附/1 h解吸循环中，循环容量为0.695 rrunol CO2/g。
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 degrees 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 rrunol CO2/g.