Avaliação teórica da atividade de formação de espécies reativas de oxigênio sobre fosfato de prata: efeito de morfologia e estrutura eletrônica.

Author

Lipsky, Felipe ORCID

Director

Andres, Juan ORCID

San-Miguel, Miguel A. ORCID

Tutor

Andres, Juan ORCID

Date of defense

2024-06-21

Pages

145 p.



Department/Institute

Universitat Jaume I. Escola de Doctorat

Doctorate programs

Programa de Doctorat en Química Teòrica i Modelització Computacional

Abstract

This study explored the surface properties of silver phosphate (Ag3PO4) through density functional theory (DFT) simulations. It aimed to identify the morphology optimizing photocatalytic activity and investigate the influence of terminal atomic arrangements on surface conductivity and the formation of reactive oxygen species (ROS). The (110) surface emerged as the most promising for photocatalysis due to its stability and reactive potential. Surface energy and band structure highlighted the significance of terminal atomic arrangements. A novel mechanism for ROS formation emphasized surface interactions with adsorbed molecules. The study established a correlation between surface composition, electronic properties, and catalytic performance, offering insights for material optimization. Structural variations in terminal atomic arrangements showcased the potential for tailored material design and enhanced catalytic efficiency. These findings contribute to understanding surface-mediated catalytic processes and provide a basis for developing optimized photocatalytic materials. Future research aims to explore dynamic factors affecting surface morphology for more efficient photocatalysts.

Keywords

Semicondutores; Química de superfície; Catálise heterogênea; Fotocatálise; DFT; Semiconductors; Surface chemistry; Heterogeneous catalysis; Photocatalysis

Subjects

54 - Chemistry. Crystallography. Mineralogy

Knowledge Area

Ciències

Note

Compendi d'articles, Cotutela internacional

Documents

2024_Tesis_Lipsky Gonzalez_Felipe.pdf

12.78Mb

 

Rights

L'accés als continguts d'aquesta tesi queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc/4.0/
L'accés als continguts d'aquesta tesi queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons: http://creativecommons.org/licenses/by-nc/4.0/

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