Banca de DEFESA: RANAYANNE SUYLANE PEREIRA CAMPOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : RANAYANNE SUYLANE PEREIRA CAMPOS
DATE: 03/08/2021
TIME: 16:00
LOCAL: Remotamente pelo google meet
TITLE:

CHEMICAL CHARACTERIZATION OF IMBURANA EXTRACT (COMMIPHORA LEPTOPHLOEOS) AND ITS USE IN THE GREEN SYNTHESIS OF CuFe₂O₄ PARTICLES.

KEY WORDS:

Green Synthesis, Commiphora Leptophloeos, Nanoparticles, Ferrites, Copper Oxide.

PAGES: 95
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Inorgânica
SPECIALTY: Determinação de Estrutura de Compostos Inorgânicos
SUMMARY:

Copper Ferrite Nanoparticles (CuFe₂O₄) were synthesized by a green route using the aqueous and hydroethanolic extract of the bark of Commiphora Leptophloeos, popularly known as “Imburana”, a plant native to the Caatinga region in Brazil. The phytoconstituents present in the extract were used as complexing and chelating agents for the synthesis of CuFe₂O₄ particles. All characterizations of the bark and plant extract were performed by FTIR, TG, UV/Vis and HPLC-MS/MS analyses. The particle size, morphologies and properties of the materials obtained were analyzed by DRX, SEM, UV/Vis, FTIR and Mossbauer spectroscopy. The present study intends to demonstrate the effectiveness of the use of natural extracts as providers of secondary metabolics for the reduction and stabilization of nanomaterial structures of metallic oxides, in this case, Ferrites using an ecologically correct and economically viable green synthesis route. They were identified as secondary metabolites in acid and flavonoid extracts. The presence of quinic acid, eriodictiol, catechins, quercetins and luteolins showed good efficiency and action as complexing and chelating agents for the synthesis of CuFe₂O₄ particles.

BANKING MEMBERS:
Presidente - 349770 - DULCE MARIA DE ARAUJO MELO
Externo à Instituição - GILVAN PEREIRA DE FIGUEREDO - IFMA
Externa ao Programa - 1979301 - RENATA MARTINS BRAGA
Externo à Instituição - RODOLFO LUIZ BEZERRA DE ARAÚJO MEDEIROS - UFRN