Banca de DEFESA: CARLOS AMERICO LECHUGA PUMA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CARLOS AMERICO LECHUGA PUMA
DATE: 02/04/2024
TIME: 09:00
LOCAL: Online
TITLE:

Synthesis, characterization, and photophysical studies of Europium Layered Hydroxides with Sb³⁺ ions a potential leishmanicidal effect

KEY WORDS:

Layered europium hydroxide; antimony; luminescence; Sb³⁺ → Eu³⁺ energy transfer

PAGES: 80
BIG AREA: Ciências da Saúde
AREA: Farmácia
SUBÁREA: Farmacotecnia
SUMMARY:

This study reports the obtaining of mixed metal Eu³⁺/Sb³⁺ layered europium hydroxides (LEuH:x%Sb (with x ranging from 0 to 30%)) using the hydrothermal route. Our research reveals a detailed analysis of the chemical, structural, thermal, and morphological characteristics of this class of materials. The results revealed slight changes in the structure for antimony fractions greater than 20%, modification in thermal stability, and significant morphological modification due to the increase in the incorporation of Sb³⁺ into the LEuH-Cl host. Furthermore, we comprehensively investigated its photophysical properties, describing its unique luminescent characteristics. Additionally, results revealed increased luminescence of Eu³⁺ ions promoted by the energy transfer between Sb³⁺ →Eu³⁺. This study contributes valuable information on the structural, thermal and photophysical properties of layered hydroxide materials containing europium and antimony, offering insights into the design of functional materials of this class for use as efficient chemical sensors, catalysis systems, platforms for drug delivery and leishmaniasis therapy.

COMMITTEE MEMBERS:
Presidente - 1527220 - CAMILA BRAGA DORNELAS
Interno(a) - 1797785 - LUCAS MEILI
Externo(a) ao Programa - 1339771 - UESLEN ROCHA SILVA - UFAL