Amine-functionalized mesoporous ZSM-5 zeolite adsorbents for carbon dioxide capture

被引：74

作者：

Wang, Yisong ^{[1
]}

Du, Tao ^{[1
]}

Song, Yanli ^{[1
]}

Che, Shuai ^{[1
]}

Fang, Xin ^{[1
]}

Zhou, Lifeng ^{[1
]}

机构：

[1] Northeastern Univ, State Environm Protect Key Lab Ecoind, Shenyang 110819, Liaoning, Peoples R China

来源：

SOLID STATE SCIENCES | 2017年 / 73卷

关键词：

ZSM-5; Tetraethylenepentamine (TEPA); Adsorbents; CO2; adsorption; CO2; CAPTURE; ADSORPTION CAPACITY; MOLECULAR-SIEVE; SORBENTS; PERFORMANCE; KINETICS; SBA-15; MCM-41; 13X; GENERATION;

D O I：

10.1016/j.solidstatesciences.2017.09.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

ZSM-5 type zeolite with mesoporous structure was prepared and then amine-functionalized with tetraethylenepentamine (TEPA) by wet impregnation method to form a series of CO2 adsorbents (ZTx). The structural properties of ZSM-5 and ZTx were characterized by XRD, FTIR, TGA/DTG, nitrogen adsorption/desorption, SEM and EDX techniques. The adsorption capacity of the adsorbents with different amine loading was measured at a temperature from 40 to 100 degrees C and the adsorption capacity of ZT7 was 1.80 mmol/g at 100 degrees C. The adsorption process and mechanism were studied by fitting the experimental data used the three adsorption kinetic models, and a complex physical and chemical mixing process was produced as the amine entered the surface and pore size of the zeolite. The high adsorption selectivity at 10% CO2 concentration and the stability of the five adsorption desorption cycles indicated that ZT7 is a suitable and promising CO2 adsorbent for the purification of industrial flue gas. (C) 2017 Elsevier Masson SAS. All rights reserved.

引用

页码：27 / 35

页数：9

共 46 条

[1] Synthesis of metal-organic framework hybrid nanocomposites based on GO and CNT with high adsorption capacity for dye removal [J].