Carbon Dioxide Adsorption on Grafted Nanofibrous Adsorbents Functionalized Using Different Amines

Frontiers in Energy Research

Thomas Choong²  Mohamed Mahmoud Nasef³  Matsuura Takeshi⁴  Farahnaz Eghbali Babadi⁵  Soorathep Kheawhom⁵  Anongnat Somwangthanaroj⁶  Reza Faridi-Majidi⁷  Ebrahim Abouzari-Lotf⁸  Ali Abbasi⁹ 

[1] Biological Engineering, University of Ottawa, Ottawa, ON, Canada;Advanced Materials Research Group, Center of Hydrogen Energy, Institute of Future Energy, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia;Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia;;Department of Chemical &Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand;Department of Chemical and Environmental Engineering, Universiti Putra Malaysia, Selangor, Malaysia;Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran;Helmholtz Institute Ulm (HIU) Electrochemical Energy Storage, Ulm, Germany;Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok, Thailand;

关键词: radiation-induced grafting;    electrospun nanofibers;    CO2 adsorption;    poly(glycidyl methacrylate);    ethanolamine;    diethylamine;   

DOI  :  10.3389/fenrg.2019.00145

来源: DOAJ

【 摘 要 】

Of late, the demand for new CO2 adsorbents with high adsorption capacity and stability is growing very fast. Nanofibrous adsorbents are potential materials for such application with most attempts made on carbon nanofibers. In this study, a series of electrospun nanofibrous adsorbents containing amines were prepared using a 3-stage promising approach and tested comparatively for CO2 capture. The preparation of adsorbents involved electrospinning of syndiotactic polypropylene (s-PP) solution, radiation-induced grafting (RIG) of glycidyl methacrylate (GMA) onto electrospun nanofibers, and functionalization of poly-GMA grafted s-PP nanofibrous mats with different amines, including ethanolamine (EA) diethylamine (DEA) and triethylamine (TEA). The effect of different amination parameters: namely, amine concentration, reaction time, temperature, and degree of grafting (DG) on the degree of amination (DA), was evaluated. The nanofibrous mats containing amine were tested for CO2 adsorption in a fixed bed column operated under various parameters such as amine density, amine type, initial CO2 concentration and temperature. The adsorbents recorded CO2 adsorption capacities of 2.87, 2.06, and 0.94 mmol/g for EA-, DEA- and TEA-containing adsorbents, respectively, at 30°C using initial CO2 concentration of 15%. This was coupled with the same order of high amine efficiency of 75, 57, and 31%. Results demonstrated that the nanofibrous adsorbent containing amine had strong potential for CO2 capture application.

【 授权许可】

Unknown