One-step fabrication of PEI-modified GO particles for CO2 capture

被引：27

作者：

He, Yi ^{[1
]}

Xia, Yu ^{[1
]}

Zhao, Jin ^{[1
]}

Song, Yongjiao ^{[1
]}

Yi, Longfei ^{[1
]}

Zhao, Lijuan ^{[1
]}

机构：

[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610066, Sichuan, Peoples R China

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2019年 / 125卷 / 03期

基金：

中国国家自然科学基金;

关键词：

MESOPOROUS MOLECULAR-SIEVE; SOLID AMINE SORBENT; CARBON-DIOXIDE; GRAPHENE OXIDE; ADSORPTIVE REMOVAL; POROUS MATERIALS; GRAPHITE OXIDE; FLUE-GAS; SILICA; KINETICS;

D O I：

10.1007/s00339-019-2435-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Carbon dioxide (CO2) emissions to the atmosphere are causing increased public concern due to the consequence of global climate change, and solid adsorbents are one of the most promising options for CO2 capture. A fresh method for the fabrication of amine-modified CO2 solid adsorbents was proposed. Graphene oxide (GO) was modified by different concentrations of polyethylenimine (PEI) by a one-step method. The physical chemical structure and adsorption/desorption properties were characterized in detail. Results showed that the PEI-GO solid adsorbents were successfully fabricated and the particles were uniform, controllable and intact. The CO2 adsorption properties of PEI-GO solid adsorbents were measured, and the solid adsorbents exhibited good CO2 adsorption capacity (128.1mg/g) at 75 degrees C. In addition, the PEI-GO solid adsorbents were regenerable and exhibited good stability. Accordingly, this work stands out as a promising solution to a distinct way for the fabrication technology of CO2 solid adsorbents.

引用

页数：9

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