Change in the drying stage to obtain niobium-based photocalisers.

• Grant number: 17/03428-2
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2017
• End date: December 31, 2019
• Field of knowledge: Engineering - Chemical Engineering - Industrial Operations and Equipment for Chemical Engineering
• Principal Investigator: Lívia Chaguri e Carvalho
• Grantee: Lívia Chaguri e Carvalho
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil
• City of the host institution: Lorena
• Associated researchers: Carmen Cecilia Tadini ; Daniela Helena Pelegrine Guimarães ; Eduardo Rezende Triboni ; Liana Alvares Rodrigues

Abstract

The obtaining of catalysts with photocatalytic sensitivity and with defined morphological characteristics, presenting uniform size and distribution, demands the use of equipment that allows to ensure that these characteristics are achieved. Thus, the increase of the process scale will also be achieved.The proposal of change the drying stage to obtain catalysts may be an alternative to improve the physico-chemical properties of niobium-based photocalisers. This stage is mostly carried out in a stove and spray drying can improve the morphology of its particles, and therefore increase its sensitivity, stability and application.The evaluation of the performance, efficiency and conditions of operation of the equipment can lead relevant information regarding as production viability in a larger scale and is one of the objectives of this research project.However, in order to quantify how this equipment may interfere in the properties of the material, the characterization of physicochemical properties such as viscosity, density, moisture content, morphology, among others, of both the feed and the obtained powder is necessary.The knowledge and the study of heat and mass transport properties is relevant, since in the future, it will allow to design, model and simulate the process and will allow the industrial application of niobium based photocalisers. (AU)

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)

DE MORAES, NICOLAS PERCIANI; ANSELMO, RODRIGO BARBOSA; SARTOR, LUIS OTAVIO; JUCA DANTAS, GUSTAVO VIEGAS; RODRIGUES, LIANA ALVARES; CHAGURI E CARVALHO, LIVIA. Spray drying as feasible processing technique to enhance the photocatalytic activity of the Nb2O5/carbon xerogel composite. Materials Letters, v. 273, AUG 15 2020. (17/03428-2, 18/10492-1, 18/16360-0)

DE MORAES, NICOLAS PERCIANI; ANSELMO, RODRIGO BARBOSA; BACANI, REBECA; SARTOR, LUIS OTAVIO; RODRIGUES, LIANA ALVARES; CHAGURI, LIVIA. Effect of fluoride on the properties of spray-dried niobium-based composites: structure, porosity, particle size, morphology, and photoactivity. Chemical Engineering Communications, OCT 2021. (19/07046-2, 17/03428-2, 18/10492-1, 18/16360-0)

DOS SANTOS, GABRIELA SPIRANDELLI; GOES, CLARICE MOREIRA; MARTINS DE SOUSA, JULIANA GIANCOLI; DE MORAES, NICOLAS PERCIANI; CHAGURI, LIVIA; RODRIGUES, LIANA ALVARES. Evaluation of ZnO/Carbon Xerogel Composite as a Photocatalyst for Solar and Visible Light Degradation of the Rhodamine B Dye. Journal of Nanoscience and Nanotechnology, v. 21, n. 4, p. 2292-2301, APR 2021. (17/03428-2, 18/16360-0, 19/03641-3, 16/20920-5, 18/10492-1)