TY - JOUR
T1 - Direct CO2 capture by alkali-dissolved cellulose and sequestration in building materials and artificial reef structures
AU - Reyes, Guillermo
AU - Vega-Coloma, Mabel
AU - Antonova, Anna
AU - Ajdary, Rubina
AU - Jonveaux, Solene
AU - Flanigan, Colleen
AU - Lautenbacher, Nathalie
AU - Rojas, Orlando J.
N1 - The authors acknowledge the help and contribution of Dr. Donald Potts's laboratory at the University of California-Santa Cruz, Long Marine Laboratory. The authors also acknowledge the electrolytic coral restoration structure placed on the Cozumel coast (Mexico, August 8th to September 29th, 2021, Flanigan, C. Zoe a living sea sculpture. https://zoecoral.com/). G.R. and O.J.R. acknowledge the funding contribution of UPM and support of the Academy of Finland's Flagship Program under Projects Nos. 318890 and 318891 (Competence Center for Materials Bioeconomy, FinnCERES). G.R., R.A., and O.J.R. are grateful for the support received from the ERC Advanced Grant Agreement No. 788489 (“BioElCell”), the Canada Excellence Research Chair Program (CERC-2018-00006), and Canada Foundation for Innovation (Project number 38623). Coral testing in Mexico was funded with Patreon funds from Chris Anderson to Living Sea Sculpture. G.R. and N.B. acknowledge the help and contribution of Tomi Pelkonen, Aalto University Ceramic Studio Technician. C.F. and S.J. acknowledge the help and contribution of Dr. Donald Potts's laboratory at the University of California- Santa Cruz, Long Marine Laboratory, and Dr. David Vaughan of Plant a Million Corals Foundation in Florida. Joey Mandara of The Brinton Environmental Center, Boy Scouts of America High Adventure Camp, is also gratefully acknowledged for his monitoring and photographs of the corals on the CS. M.V. is grateful for the support of the Research Group at Universidad del Bío-Bío (DYPCS-UBB 2110375 GI_EF). The provision of facilities and technical support by Aalto University at OtaNano – Nanomicroscopy Center (Aalto-NMC) is also gratefully acknowledged.
PY - 2023/3/16
Y1 - 2023/3/16
N2 - 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 CO2 sequestration. Industrially relevant highly reactive alkali cellulose solutions are used as CO2 absorption media. The latter lead to mineralized cellulose materials (MCM) at a tailorable cellulose-to-mineral ratio, forming organic-inorganic viscous systems (viscosity from 102 to 107 mPa s and storage modulus from 10 to 105 Pa). CO2 absorption and conversion into calcium carbonate and associated minerals translate to maximum absorption of 6.5 gCO2 gcellulose−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.
AB - 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 CO2 sequestration. Industrially relevant highly reactive alkali cellulose solutions are used as CO2 absorption media. The latter lead to mineralized cellulose materials (MCM) at a tailorable cellulose-to-mineral ratio, forming organic-inorganic viscous systems (viscosity from 102 to 107 mPa s and storage modulus from 10 to 105 Pa). CO2 absorption and conversion into calcium carbonate and associated minerals translate to maximum absorption of 6.5 gCO2 gcellulose−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.
UR - http://www.scopus.com/inward/record.url?scp=85147284321&partnerID=8YFLogxK
U2 - 10.1002/adma.202209327
DO - 10.1002/adma.202209327
M3 - Article
SN - 0935-9648
VL - 35
JO - Advanced Materials
JF - Advanced Materials
IS - 11
M1 - 2209327
ER -