Synthesis and characterization of Pt-TiO2/SiO2 materials and evaluation in a fixed bed continuous photocatalytic reactor for the degradation of pharmaceutical compounds

• Grant number: 22/12331-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2022
• End date: October 31, 2023
• Field of knowledge: Engineering - Chemical Engineering - Chemical Process Industries
• Principal Investigator: Antonio Carlos Silva Costa Teixeira
• Grantee: Laura Teixeira Borges
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

The present work proposes the development of Pt-TiO2/SiO2 materials, applied to the degradation of a pharmaceutical contaminant of emerging concern in a continuous flow microstructured fixed bed photocatalytic reactor. Although there are consolidated works on the synthesis and application of metal-modified TiO2 photocatalysts, there are several gaps in the use of metal-modified TiO2 supported on silica gel and the consequent synergistic effect of platinum with silica. Subsequently, catalysts co-doped with platinum and sulfur (Pt/S-TiO2/SiO2) in different proportions will be synthesized in order to evaluate the optimal ratio of the dopants in the photocatalytic activity of the materials. In addition to understanding the results of characterization analyzes to evaluate the morphological, optical, crystalline and surface properties of the materials, experiments will be carried out varying the operational parameters of the reactor, as well as tests with a real effluent from a pharmaceutical industry.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GUSMAO, CAROLINA DE ARAUJO; BORGES, LAURA TEIXEIRA; PALHARIM, PRISCILA HASSE; OTUBO, LARISSA; RODRIGUES, ORLANDO; GOUVEA, DOUGLAS; RAMOS, BRUNO; SILVA COSTA TEIXEIRA, ANTONIO CARLOS. Synthesis, Characterization, and Application of Pt/PtO2-TiO2/SiO2 Materials on a Continuous Flow Packed Bed Microreactor for Enhanced Photocatalytic Activity under Sunlight. WATER, v. 14, n. 23, p. 18-pg., 2022-12-01. (21/10919-8, 19/24158-9, 22/12331-0)