Direct CO 2 Capture by Alkali-Dissolved Cellulose and Sequestration in Building Materials and Artificial Reef Structures.

Autor: Reyes G; Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo, FI-00076, Finland., Vega-Coloma M; Departamento de Ingeniería en Maderas, Universidad del Bío-Bío, Av. Collao 1202, Casilla 5-C, Concepción, 4081112, Chile., Antonova A; Department of Civil Engineering, Aalto University, Rakentajanaukio 4 A, Otaniemi, Espoo, 02150, Finland., Ajdary R; Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo, FI-00076, Finland., Jonveaux S; Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, Quebec, J1K 2R1, Canada., Flanigan C; Zoe - A Living Sea Sculpture in Cozumel, Av. Rafael E. Melgar, San Miguel de Cozumel, Q.R., 77688, Mexico., Lautenbacher N; Department of Design, Aalto University, Otaniementie 14, Otaniemi, Espoo, 02150, Finland., Rojas OJ; Biobased Colloids and Materials, Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, Espoo, FI-00076, Finland.; Bioproducts Institute, Department of Chemical & Biological Engineering, Department of Chemistry and Department of Wood Science, The University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada.
Jazyk: angličtina
Zdroj: Advanced materials (Deerfield Beach, Fla.) [Adv Mater] 2023 Mar; Vol. 35 (11), pp. e2209327. Date of Electronic Publication: 2023 Jan 26.
DOI: 10.1002/adma.202209327
Abstrakt: Current carbon capture and utilization (CCU) technologies require high energy input and costly catalysts. Here, an effective pathway is offered that addresses climate action by atmospheric CO 2 sequestration. Industrially relevant highly reactive alkali cellulose solutions are used as CO 2 absorption media. The latter lead to mineralized cellulose materials (MCM) at a tailorable cellulose-to-mineral ratio, forming organic-inorganic viscous systems (viscosity from 10 2 to 10 7  mPa s and storage modulus from 10 to 10 5  Pa). CO 2 absorption and conversion into calcium carbonate and associated minerals translate to maximum absorption of 6.5 gCO 2 g cellulose -1 , tracking inversely with cellulose loading. Cellulose lean gels are easily converted into dry powders, shown as a functional component of ceramic glazes and cementitious composites. Meanwhile, cellulose-rich gels are moldable and extrudable, yielding stone-like structures tested as artificial substrates for coral reef restoration. Life Cycle Assessment (LCA) suggests new CCU opportunities for building materials, as demonstrated in underwater deployment for coral reef ecosystem restoration.
(© 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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