Banca de DEFESA: GUSTAVO HENRIQUE LOUREDO

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : GUSTAVO HENRIQUE LOUREDO
DATE: 14/08/2020
TIME: 08:30
LOCAL: ONLINE
TITLE:

Photocatalic Production of Hydrogen in Continuous-flow Plate Reactor using Nickel Ferrite as Photocatalist  

KEY WORDS:

Hydrogen, heterogenous photocatalysis, photocatalytic reactor, nickel ferrite.

PAGES: 119
BIG AREA: Engenharias
AREA: Engenharia Química
SUMMARY:

The search for new sustainable energy sources that are renewable, environmentally friendly, economically profitable and with a high capacity for regeneration in the environment with the aim of initially reduce and subsequently eliminate the energy dependency of fossil fuels, has promoted studies on the viability of solar hydrogen production with high conversion rates, safely and economically feasible for large-scale application. Among the multiplicity of options for its production, heterogeneous solar photocatalysis involving the breakdown of water molecules has been a promising area in this context, presenting challenges related to the synthesis of photocatalysts with high conversion rates of luminous energy into hydrogen, durable and with low cost of production. In this prism, this work intends to produce nickel ferrite (NiFe2O4) by the co-precipitation synthesis method to act as a photocatalyst, in which the influence of the reagents concentration and the heating rate, temperature and time of the plateau in the calcination will be evaluated. In addition, a photoreactor will be produced to conduct the reactions under solar radiation, in which parameters such as low cost of production and scalability will be prioritized, once in operation the phenomenon of mass transfer of water to the surface of the photocatalyst in the process and the influence of the water flow rate on the hydrogen production rate will be studied together with the evaluation of the reuse and regeneration capacity of the semiconductor. The materials studied will be characterized by thermogravimetric analysis (TG) and differential thermal analysis (DTA), atomic force microscopy (AFM), X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), Mössbauer spectroscopy, diffuse reflectance spectroscopy (DRE) and Specific Area Analysis by the nitrogen adsorption method (BET).    

BANKING MEMBERS:
Presidente - 2929066 - ANDRE LUIS LOPES MORIYAMA
Interno - 349801 - CARLSON PEREIRA DE SOUZA
Externa à Instituição - ANDARAIR GOMES DOS SANTOS - UFERSA
Externo à Instituição - FRANCISCO WENDELL BEZERRA LOPES - UnP
Externa à Instituição - YARA FELICIANO GOMES - UFRN