• 文献标题:   Arginine containing chitosan-graphene oxide aerogels for highly efficient carbon capture and fixation
  • 文献类型:   Article
  • 作  者:   HSAN N, DUTTA PK, KUMAR S, KOH J
  • 作者关键词:   chitosangraphene oxide, aerogel, carbon dioxide, adsorption, fixation
  • 出版物名称:   JOURNAL OF CO2 UTILIZATION
  • ISSN:   2212-9820 EI 2212-9839
  • 通讯作者地址:  
  • 被引频次:   14
  • DOI:   10.1016/j.jcou.2022.101958 EA MAR 2022
  • 出版年:   2022

▎ 摘  要

Carbon dioxide (CO2) gas is the main greenhouse gas and is primarily responsible for global warming and climate change. The greatest challenge in contemporary environmental research is reducing anthropogenic CO2 & nbsp;gas in the atmosphere by developing effective and efficient materials and control methods. We propose chitosan--graphene oxide and arginine-based aerogels for CO2 & nbsp;capture and fixation characterized using Fourier transform infrared spectroscopy, X-ray diffraction analysis, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller analysis, and thermogravimetric analysis (TGA). The chitosanbased aerogel was used as a CO2 & nbsp;adsorbent and its CO2 & nbsp;gas adsorption capacity was measured using the TGA method on its solid surface. The CO2 & nbsp;gas adsorption was equal to 24.15 wt% (5.48 mmolg(-1)) at 35 ?& nbsp;for 35 min. Chitosan-graphene oxide and arginine-based aerogels exhibited a much higher CO2 & nbsp;capture capacity than that of pure chitosan. Chitosan-graphene oxide and arginine-based aerogels were used as catalysts for the insertion of CO2 & nbsp;into organic molecules leading to the formation of new organic molecules with the help of a cocatalyst. The fixation of CO2 & nbsp;with epoxide was observed using gas chromatography-mass spectrometry. Thus, our findings can aid in reducing anthropogenic CO2 & nbsp;gas from the atmosphere by synthesizing new organic compounds using anthropogenic CO2.