Banca de QUALIFICAÇÃO: TAISA CRISTINE DE MOURA DANTAS

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
DISCENTE : TAISA CRISTINE DE MOURA DANTAS
DATA : 21/06/2016
HORA: 09:00
LOCAL: Sala 3F1
TÍTULO:

SYNTHESIS AND CHARACTERIZATION OF ORGANIC-INORGANIC MESOPOROUS MATERIALS FOR USE IN CARBON DIOXIDE ADSORPTION

PALAVRAS-CHAVES:

CO₂ Emission. Adsorption Process. Organic-Inorganic Materials. CO₂ Adsorption.

PÁGINAS: 115
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Química
SUBÁREA: Química Inorgânica
ESPECIALIDADE: Físico Química Inorgânica
RESUMO:

Increased air pollution has been one of the reasons of great attention on the world stage in recent decades. Recently a major concern at the Climate Conference (COP21) was climate change and the proposed mitigation policies for emissions of greenhouse gases, thus causing significant discussion among the major world powers and emerging countries. The need to find new technologies to minimize the increasing emission of greenhouse gases on the planet becomes increasingly urgent, among them stands out the CO₂, and its research theme captures worldwide. The organic-inorganic porous materials are among these materials, since they have high stability and good porosity, thus making up a promising adsorbent of polluting gases. Within the materials found in the literature we can highlight mesoporous structures since they have a high surface area, size adjustable pores and good thermal and mechanical stability. For these structures do not present basic molecules are necessary for functionalization with necessary amino groups so that there may be interaction these (basic groups) with the carbon dioxide molecules (acid molecules). In this work, it were proposed to carry out synthesis for obtaining mesoporous materials SBA-16 and SBA-15, and further functionalization of these organic molecules using silylating agent such as N [(3-trimetoxissilil) propyl] diethylenetriamine (DT- NNN) and branched polyethylenimine polymer etilendiamina (PEI). It has also been proposed to reuse the SBA-15, being held calcination cycles and functionalization. The samples were identified using the techniques XRD, TG / DTG, FTIR, NMR, TEM, CHN and adsorption and desorption of N₂. After the characterizations there was the realization of pure CO₂ sorption tests under controlled temperature of 45 °C and atmospheric pressure.

MEMBROS DA BANCA:
Externo ao Programa - 2140818 - AMANDA DUARTE GONDIM
Presidente - 1558610 - ANA PAULA DE MELO ALVES GUEDES
Externo à Instituição - EDJANE FABIULA BURITI DA SILVA - Estácio