Banca de QUALIFICAÇÃO: DÉBORA FERREIRA DOS SANTOS

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : DÉBORA FERREIRA DOS SANTOS
DATE: 22/11/2021
TIME: 14:00
LOCAL: Plataforma meet
TITLE:

Study of the Photocatalytic and Optical Properties of the SrMoO4/g-C3N4 heterojunction via sonochemical synthesis with temperature control

KEY WORDS:

sonochemist; heterostructure; SrMoO4; g-C3N4; photocatalysis; photoluminescence; temperature

PAGES: 107
BIG AREA: Engenharias
AREA: Engenharia de Materiais e Metalúrgica
SUBÁREA: Materiais Não-Metálicos
SPECIALTY: Cerâmicos
SUMMARY:

Attractive optical properties of SrMoO4 and promising photocatalytic properties of g-C3N4, a heterojunction is aimed at optimizing the catalytic efficiency of g-C3N4, decreasing the recombination of the e- / h + pair, as well as decreasing the gap of SrMoO4, re catalytic activity, in addition to providing unique luminescent properties. In this work, particles of the heterostructure SrMoO4 @ x g-C3N4 (x = 0.1, 0.3, 05g) were synthesized by sonochemical method, at controlled temperatures of 15, 30 and 45ºC, evaluating the influence of g-C3N4 without semiconductor, as well as investigating the possible modifications and properties with temperature variation. The particles were structurally characterized by X-ray diffraction (XRD), proving the effectiveness of the new synthesis parameter; morphologically characterized by scanning electron microscopy, with field emission (SEM-FEG); optical properties were investigated by UV-Vis spectroscopy and photoluminescence (PL) techniques; and photocatalytic properties were evaluated using UV radiation on the degradation of organic contaminants Methylene Blue, Rhodamine B and Crystal Violet, through a UV-Vis spectrophotometer.

 

BANKING MEMBERS:
Presidente - 1883170 - MAURICIO ROBERTO BOMIO DELMONTE
Interna - 1802888 - FABIANA VILLELA DA MOTTA
Externo à Instituição - MARCIO DALDIN TEODORO - UFSCAR