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CO 2 capture using amine incorporated UiO-66 in atmospheric pressure
Journal of Porous Materials ( IF 2.5 ) Pub Date : 2019-06-22 , DOI: 10.1007/s10934-019-00779-x
Suresh Mutyala , Ya-Dong Yu , Wei-Guang Jin , Zhi-Shuo Wang , Deng-Yue Zheng , Chun-Rong Ye , Binbin Luo

Composite material, tetraethylenepentamine (TEPA) incorporated UiO-66 was prepared by impregnation method to study CO2 capture in a fixed bed reactor, atmospheric pressure. All synthesized adsorbents were characterized using PXRD, N2 adsorption–desorption isotherms, FT-IR, TGA, SEM, and Elemental analysis. Characterization results have revealed that incorporated TEPA was present within pores of UiO-66. CO2 adsorption was higher on TEPA incorporated UiO-66 compared to UiO-66. It was due to the chemical interaction between –NH2 and CO2. High CO2 adsorption capacity 3.70 mmol g−1 was obtained on 30TEPA/UiO-66 at 75 °C, 1 bar. Because of more flexibility and high dispersive nature of TEPA at this temperature. The same CO2 adsorption capacity was obtained in each adsorption cycle without decomposition of the amine on 30TEPA/UiO-66. Avrami adsorption kinetic model has suggested adsorption of CO2 on composite material was chemical adsorption and deactivation model suggested an initial rate of adsorption was higher on TEPA incorporated UiO-66.

中文翻译:

在大气压下使用结合了胺的UiO-66捕集CO 2

采用浸渍法制备了掺有UiO-66的四乙烯五胺(TEPA)复合材料,研究了固定床反应器在大气压下的CO 2捕集率。使用PXRD,N 2吸附-解吸等温线,FT-IR,TGA,SEM和元素分析对所有合成的吸附剂进行表征。表征结果表明,掺入的TEPA存在于UiO-66的孔中。与UiO-66相比,在掺入TEPA的UiO-66上的CO 2吸附更高。这是由于–NH 2和CO 2之间的化学相互作用。高的CO 2吸附能力3.70 mmol g -1在30TEPA / UiO-66上于75°C,1 bar下获得。由于TEPA在此温度下具有更大的柔韧性和高分散性。在每个吸附循环中获得相同的CO 2吸附容量,而胺在30TEPA / UiO-66上没有分解。Avrami吸附动力学模型表明,CO 2在复合材料上的吸附是化学吸附,而失活模型表明,在结合了UiO-66的TEPA上初始吸附速率更高。
更新日期:2019-11-11
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