Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design

There is a growing concern on the relationship between anthropogenic carbon dioxide and climate changes. A promising approach is the adsorption technology using mesoporous MCM-41 materials that can be easily synthesized to depict structures adequate to the flow of gas. The aim of this study was to i...

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Principais autores:	Martinelli, Antonio Eduardo, Costa, Cíntia de Castro, Melo, Dulce Maria de Araújo, Melo, Marcus Antônio de Freitas, Medeiros, Rodolfo Luiz Bezerra de Araújo, Marconi, João Andrade, Barros, Joana Maria de Farias
Formato:	article
Idioma:	English
Publicado em:	ABM, ABC, ABPol
Assuntos:	MCM-41 CO2 adsorption Simplex-centroid Cetyltrimethylammonium bromide Trimethyloctadecylammonium bromide Tetradecyltrimetylammonium bromide
Endereço do item:	https://repositorio.ufrn.br/handle/123456789/33389
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spelling	ri-123456789-333892021-09-14T13:31:01Z Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design Martinelli, Antonio Eduardo Costa, Cíntia de Castro Melo, Dulce Maria de Araújo Melo, Marcus Antônio de Freitas Medeiros, Rodolfo Luiz Bezerra de Araújo Marconi, João Andrade Barros, Joana Maria de Farias MCM-41 CO2 adsorption Simplex-centroid Cetyltrimethylammonium bromide Trimethyloctadecylammonium bromide Tetradecyltrimetylammonium bromide There is a growing concern on the relationship between anthropogenic carbon dioxide and climate changes. A promising approach is the adsorption technology using mesoporous MCM-41 materials that can be easily synthesized to depict structures adequate to the flow of gas. The aim of this study was to improve the synthesis of MCM-41 using cationic surfactant mixtures and apply the resulting materials to CO 2 adsorption. To that end, the simplex-centroid design was applied to optimize CO2 adsorption from seven mesoporous MCM-41 materials synthesized by the hydrothermal method using surfactants from hydrophobic chains of different sizes. The cationic surfactants used were tetradecyltrimetylammonium bromide, cetyltrimethylammonium bromide, trimethyloctadecylammonium bromide and their mixture at ratios of 1:1 and 1:1:1. The CO 2 adsorption was investigated using thegravimetric method at 298 K and pressures up to 40 bar. The resulting materials, labelled C17, C19, C21, C17C19, C19C21, C17C21 and C17C19C21, were characterized by XRD, FTIR, TG and SEM and showed significant differences in structure as well as in the mass of CO2 adsorption. The response models showed that the best combination of the surfactants resulted from C 17C19 sample, which presented synergistic interactions reaching the highest value of CO2 adsorption (0.62 g CO2/g adsorbent), compared to other samples 2021-09-14T13:31:00Z 2021-09-14T13:31:00Z 2015-08 article COSTA, Cíntia de Castro; MELO, Dulce Maria de Araújo; MARTINELLI, Antonio Eduardo; MELO, Marcus Antônio de Freitas; MEDEIROS, Rodolfo Luiz Bezerra de Araújo; MARCONI, João Andrade; BARROS, Joana Maria de Farias. Synthesis Optimization of MCM-41 for CO2 Adsorption Using Simplex-centroid Design. Materials Research, [S.L.], v. 18, n. 4, p. 714-722, ago. 2015. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392015000400714&lng=en&tlng=en. Acesso em: 01 fev. 2021. http://dx.doi.org/10.1590/1516-1439.017015. 1980-5373 https://repositorio.ufrn.br/handle/123456789/33389 10.1590/1516-1439.017015 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf ABM, ABC, ABPol
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	MCM-41 CO2 adsorption Simplex-centroid Cetyltrimethylammonium bromide Trimethyloctadecylammonium bromide Tetradecyltrimetylammonium bromide
spellingShingle	MCM-41 CO2 adsorption Simplex-centroid Cetyltrimethylammonium bromide Trimethyloctadecylammonium bromide Tetradecyltrimetylammonium bromide Martinelli, Antonio Eduardo Costa, Cíntia de Castro Melo, Dulce Maria de Araújo Melo, Marcus Antônio de Freitas Medeiros, Rodolfo Luiz Bezerra de Araújo Marconi, João Andrade Barros, Joana Maria de Farias Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
description	There is a growing concern on the relationship between anthropogenic carbon dioxide and climate changes. A promising approach is the adsorption technology using mesoporous MCM-41 materials that can be easily synthesized to depict structures adequate to the flow of gas. The aim of this study was to improve the synthesis of MCM-41 using cationic surfactant mixtures and apply the resulting materials to CO 2 adsorption. To that end, the simplex-centroid design was applied to optimize CO2 adsorption from seven mesoporous MCM-41 materials synthesized by the hydrothermal method using surfactants from hydrophobic chains of different sizes. The cationic surfactants used were tetradecyltrimetylammonium bromide, cetyltrimethylammonium bromide, trimethyloctadecylammonium bromide and their mixture at ratios of 1:1 and 1:1:1. The CO 2 adsorption was investigated using thegravimetric method at 298 K and pressures up to 40 bar. The resulting materials, labelled C17, C19, C21, C17C19, C19C21, C17C21 and C17C19C21, were characterized by XRD, FTIR, TG and SEM and showed significant differences in structure as well as in the mass of CO2 adsorption. The response models showed that the best combination of the surfactants resulted from C 17C19 sample, which presented synergistic interactions reaching the highest value of CO2 adsorption (0.62 g CO2/g adsorbent), compared to other samples
format	article
author	Martinelli, Antonio Eduardo Costa, Cíntia de Castro Melo, Dulce Maria de Araújo Melo, Marcus Antônio de Freitas Medeiros, Rodolfo Luiz Bezerra de Araújo Marconi, João Andrade Barros, Joana Maria de Farias
author_facet	Martinelli, Antonio Eduardo Costa, Cíntia de Castro Melo, Dulce Maria de Araújo Melo, Marcus Antônio de Freitas Medeiros, Rodolfo Luiz Bezerra de Araújo Marconi, João Andrade Barros, Joana Maria de Farias
author_sort	Martinelli, Antonio Eduardo
title	Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
title_short	Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
title_full	Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
title_fullStr	Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
title_full_unstemmed	Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design
title_sort	synthesis optimization of mcm-41 for co2 adsorption using simplex-centroid design
publisher	ABM, ABC, ABPol
publishDate	2021
url	https://repositorio.ufrn.br/handle/123456789/33389
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Synthesis optimization of MCM-41 for CO2 adsorption using simplex-centroid design

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