CO2 adsorption performance over Fe-Zr functionalized with both polyether P123 and tetraethylenepentamine
YANG Fan-ming1, LI Li-jun1, XIAO Lang1, LIAO Min1, ZHANG Ke-yi1, TAN Wei-shi2, HE Guo-wen1
1. College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, Hunan, China; 2. All-Solid-State Energy Storage Materials and Devices Key Laboratory of Hunan Province, Hunan City University, Yiyang 413000, Hunan, China
Abstract：A mesoporous material of Fe-Zr(P) was synthesized by modifying the bimetallic material of Fe-Zr with polyether P123. Then, TEPA(n)/Fe-Zr(P) was prepared by modifying Fe-Zr(P) with tetraethylenepentamine (TEPA). X-ray diffraction, infrared spectroscopy, X-ray photoelectron spectroscopy, N2 adsorption-desorption and thermogravimetric analysis were used to analyze the structure and thermal stability of the synthesized materials. The results show that P123 is remained in the pore channels of the support. Besides, TEPA was introduced to the surface of Fe-Zr(P) through the coordination between N and Zr species. The adsorbents filled with P123 and TEPA keep stable when the temperature is less than 182℃. In addition, the adsorbents exhibit good CO2 adsorption performance in a stream of 5% CO2 concentration. Over TEPA(n)/Fe-Zr(P), both of the hydroxyl and amine groups react with CO2, leading to the occurrence of CO2 chemical adsorption and the enhancement of adsorption capacity and N utilization. When the mass fraction of TEPA is 30%, a remarkable adsorption capacity of 211.3 mg/g and the utilization of N species of 62.7% are achieved at 75℃ in a stream of 10 mL/min. After 20 cycles of adsorption-desorption, the adsorption capacity keeps stable.
杨泛明, 黎丽君, 肖浪, 廖敏, 张可意, 谭伟石, 贺国文. 聚醚P123和四乙烯五胺双功能化Fe-Zr的CO2吸附性能[J]. 材料工程, 2021, 49(9): 158-166.
YANG Fan-ming, LI Li-jun, XIAO Lang, LIAO Min, ZHANG Ke-yi, TAN Wei-shi, HE Guo-wen. CO2 adsorption performance over Fe-Zr functionalized with both polyether P123 and tetraethylenepentamine. Journal of Materials Engineering, 2021, 49(9): 158-166.
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