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Preparation of Cellulose/Graphene Oxide Composite Aerogels and Their Adsorption Performance
Received:September 20, 2025  Revised:October 29, 2025
DOI：10.11980/j.issn.0254-508X.2025.12.011
Key Words:office waste paper  aerogels  graphene oxide  adsorption performance
Author NameAffiliationPostcode
CHEN Qunyu* School of Chemical Engineering, Xuzhou College of Industrial Technology, Xuzhou, Jiangsu Province, 221140 221140
ZHANG Jiebing* College of Chemistry and Chemical Engineering, Xi’an University of Science and Technology, Xi’an, Shaanxi Province, 710054 710054
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Abstract:Cellulose-based porous aerogel composites were prepared from office waste paper and graphene oxide (GO)， followed by amine functionalization of the surface with (3-aminopropyl) triethoxysilane (APTES) to enhance CO2 capture.In addition， adsorption kinetics， isosteric heat of adsorption， cycling stability， CO2/N2 selectivity， and water uptake were evaluated. The APTES-functionalized cellulose/GO composite aerogel exhibited CO2 uptaked of 1.2， 1.5， and 2.5 mmol/g at 25 ℃ under 0.001， 0.01， and 0.1 MPa， respectively， with a CO2/N2 selectivity of 87 at 0.01 MPa. The material showed robust cycling performance： only slight capacity fade under pressure-swing adsorption， while complete regeneration was achieved after temperature- and/or pressure-swing desorption.
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