Banca de QUALIFICAÇÃO: RANAYANNE SUYLANE PEREIRA CAMPOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RANAYANNE SUYLANE PEREIRA CAMPOS
DATE: 12/07/2021
TIME: 10:00
LOCAL: Remotamente pelo google meet
TITLE:

INFLUENCE OF COMMIPHORA LEPTOPHLOES (IMBURANA) EXTRACT ON THE PROPERTIES, STRUCTURE, MORPHOLOGY AND SYNTHESIS OF CuFe2O4-CuO NANOPARTICLES

KEY WORDS:

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

PAGES: 72
BIG AREA: Ciências Exatas e da Terra
AREA: Química
SUBÁREA: Química Inorgânica
SPECIALTY: Determinação de Estrutura de Compostos Inorgânicos
SUMMARY:

Copper Ferrite (CuFe2O4) and Copper Oxide (CuO) nanoparticles were synthesized by a green synthesis route using the Aqueous and Hydroethanolic Extract from the bark of Commiphora Leptophloeos, popularly known as "Imburana", native plant from the Caatinga region in Brazil . The phytoconstituents present in the extract were used as reducing and stabilizing agents for the synthesis of CuFe2O4 particles. All bark and plant extract characterizations were performed by FTIR, TG 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 using natural extracts as providers of secondary metabolics to reduce and stabilize the nanometric structure of metals, in our case, ferrites and metal oxides using an ecologically correct and economically viable green synthesis route . Secondary metabolites were identified in acid and flavonoid extracts, such as quinic acid, eriodictiol, catechins, quercetin and luteolin, which showed good efficiency and action as reducing and chelating agents for the synthesis of CuFe2O4-CuO nanoparticles.

BANKING MEMBERS:
Presidente - 349770 - DULCE MARIA DE ARAUJO MELO
Externo à Instituição - GILVAN PEREIRA DE FIGUEREDO - IFMA
Externo à Instituição - RODOLFO LUIZ BEZERRA DE ARAÚJO MEDEIROS - UFRN