Síntese e caracterização de MOFs produzidos a partir de ácidos di- e tricarboxílicos
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Citações na Scopus
Tipo de produção
Trabalho de Conclusão de Curso
Data
2023-12-07
Autores
Martins, Arthur
Horner, Ingrid
Mira, Leonardo
Meleiro, Matheus
Oscar, Matheus
Horner, Ingrid
Mira, Leonardo
Meleiro, Matheus
Oscar, Matheus
Orientador
Poço, João Guilherme Rocha
Periódico
Título da Revista
ISSN da Revista
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Citação
Texto completo (DOI)
Palavras-chave
MOF,captura de carbono,adsorção,carbon capture,adsorption
Resumo
A expansão contínua e desenfreada da queima de combustíveis fósseis para geração de energia para as mais diversas funções e setores gera um aumento sem precedentes na concentração de gases do efeito estufa (GEE) na atmosfera do planeta, uma alteração que impacta a temperatura do globo e consequentemente em todos os biomas e dinâmicas do planeta, prejudicando diversos setores vitais para a humanidade atual. Para solução de um problema de tamanhas proporções, diversos métodos de captura de carbono atmosférico vêm sendo desenvolvidas, muitas vezes com complexidade e custoS severamente elevadoS. Dessa forma, levando-se em consideração os fatores apresentados, durante o desenvolvimento do referido trabalho, foi abordado inicialmente síntese da MOF-5, utilizando os ácidos dicarboxílico e o tricarboxílico, em testes realizados em temperatura à 105 ºC com diferentes tempos de aquecimento (12-144 horas). Posteriormente todas as amostras foram submetidas a 3 ciclos de lavagens a cada 24 horas, sendo a primeira com dimetilformamida e a segunda e a terceira com clorofórmio. Após o processo de lavagem as amostras foram secas a vácuo 60 ºC. Os cristais obtidos foram analisados no processo de difração de raio X, onde foi possível identificar os picos para caracterização da MOF-5 e análises das amostras que seriam qualificadas para possível estudo na adsorção do carbono.
The continuous and unbridled expansion of the burning of fossil fuels for energy generation for the most diverse functions and sectors generates an unprecedented increase in the concentration of greenhouse gases (GHG) in the planet's atmosphere, a change that impacts the temperature of the globe and consequently in all biomes and dynamics of the planet. harming several vital sectors for today's humanity. To solve a problem of such proportions, several methods of atmospheric carbon capture have been developed, often with complexity and severely high cost. Thus, taking into account the factors presented during the development of this work, the synthesis of MOF-5 was initially approached, using dicarboxylic and tricarboxylic acids, in tests carried out at temperature at 105 ºC with different heating times (12-144 hours). Subsequently, all samples were washed in 3 cycles at every 24. The first with dimethylformamide and the second and third with chloroform. After the washing process, the samples were dried under vacuum 60 ºC. Crystals obtained were analyzed in the X-ray diffraction process, where it was possible to identify the peaks for characterization of MOF-5 and analysis of the samples that would be qualified for possible study in carbon adsorption.
The continuous and unbridled expansion of the burning of fossil fuels for energy generation for the most diverse functions and sectors generates an unprecedented increase in the concentration of greenhouse gases (GHG) in the planet's atmosphere, a change that impacts the temperature of the globe and consequently in all biomes and dynamics of the planet. harming several vital sectors for today's humanity. To solve a problem of such proportions, several methods of atmospheric carbon capture have been developed, often with complexity and severely high cost. Thus, taking into account the factors presented during the development of this work, the synthesis of MOF-5 was initially approached, using dicarboxylic and tricarboxylic acids, in tests carried out at temperature at 105 ºC with different heating times (12-144 hours). Subsequently, all samples were washed in 3 cycles at every 24. The first with dimethylformamide and the second and third with chloroform. After the washing process, the samples were dried under vacuum 60 ºC. Crystals obtained were analyzed in the X-ray diffraction process, where it was possible to identify the peaks for characterization of MOF-5 and analysis of the samples that would be qualified for possible study in carbon adsorption.