Synthesis of Waste-Derived Geopolymer–Zeolite Composite with Enhanced CO2 Adsorption Capacity

Carbon dioxide levels in the atmosphere are related to global warming and climate change. Materials to be used for CO2 capture are an important factor in assisting humanity in overcoming this challenge. The goals of this study are to look into the synthesis of adsorbents from red mud (RM), fly ash (FA), and metakaolin (MK). The initial composition was chosen to induce in situ crystallization of zeolites dispersed together with a geopolymer matrix. Two aging steps were used, which combined temperature (25; 95 °C) and atmosphere (air; water). The MK + FA system crystallized zeolite sites dispersed throughout the geopolymer matrix. These crystals were identified as faujasite-Na. They were responsible for the surface area ranging from 23.2 to 238.4 m2.g−1, and CO2 adsorption from 0.83 to 2.32 mmol.g−1 at 35 °C and 1 atm. The best results were obtained by first aging at 95 °C for 120 h, followed by water aging at 25 °C for 120 h.

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Publication Details

Journal
Eng—Advances in Engineering
Published
2024-12-18
DOI
https://doi.org/10.3390/eng5040179
Citations
4
Primary Topic
Zeolite Catalysis and Synthesis
Type
article
Field-Weighted Citation Impact
0.63

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article

Synthesis of Waste-Derived Geopolymer–Zeolite Composite with Enhanced CO2 Adsorption Capacity

Regina de Fátima Peralta Muniz Moreira, Agenor De Noni, Andresa Rodrigues da Silveira, Fábio Elyseu et al.
4 citations
Eng—Advances in Engineering
Zeolite Catalysis and Synthesis
0.63
article

Synthesis of Waste-Derived Geopolymer–Zeolite Composite with Enhanced CO2 Adsorption Capacity

Regina de Fátima Peralta Muniz Moreira, Agenor De Noni, Andresa Rodrigues da Silveira, Fábio Elyseu, Aidan M. Doyle, Sibele B. C. Pergher, Michael Peterson, Dachamir Hotza, Alisson Lopes Freire
article en
4 citations

Abstract

Carbon dioxide levels in the atmosphere are related to global warming and climate change. Materials to be used for CO2 capture are an important factor in assisting humanity in overcoming this challenge. The goals of this study are to look into the synthesis of adsorbents from red mud (RM), fly ash (FA), and metakaolin (MK). The initial composition was chosen to induce in situ crystallization of zeolites dispersed together with a geopolymer matrix. Two aging steps were used, which combined temperature (25; 95 °C) and atmosphere (air; water). The MK + FA system crystallized zeolite sites dispersed throughout the geopolymer matrix. These crystals were identified as faujasite-Na. They were responsible for the surface area ranging from 23.2 to 238.4 m2.g−1, and CO2 adsorption from 0.83 to 2.32 mmol.g−1 at 35 °C and 1 atm. The best results were obtained by first aging at 95 °C for 120 h, followed by water aging at 25 °C for 120 h.

Eng—Advances in EngineeringVol. 5(4)
Manchester Metropolitan University (GB), Universidade Federal do Rio Grande do Norte (BR), Universidade Federal de Santa Catarina (BR)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico
Openalex Percentile: Top 36%
Zeolite Catalysis and Synthesis
0.63
DOIOpen Access PDFOpenAlex
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Synthesis of Waste-Derived Geopolymer–Zeolite Composite with Enhanced CO2 Adsorption Capacity — Regina de Fátima Peralta Muniz Moreira, Agenor De Noni, et al. · Eng—Advances in Engineering (2024) | TGRS Research Map | TGRS