Cerium, titanium, zinc oxide systems: Evaluation of syntheses and structural and morphological properties with photophysical and photochemical applications

• Grant number: 12/24165-6
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: May 01, 2013
• End date: March 31, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
• Principal Investigator: Osvaldo Antonio Serra
• Grantee: Juliana Fonseca de Lima
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil
• Associated scholarship(s): 13/11948-5 - Cerium, titanium, zinc oxide systems: crystallization study using X-ray diffraction in situ and morphological and photocatalytic evaluation, BE.EP.PD

Abstract

Solar energy is very important for the development and maintaining life on Earth, besides its importance and essentially in many biochemical processes, Currently solar energy stands out among the alternative sources or renewable energy and in the field of heterogeneous Therefore, studying materials that absorb solar energy is interesting for the development and maintenance of life. Nanostructure cerium, titanium and zinc oxide have been extensively studied due to their optoelectronics properties and, chemical and thermal stability. Structural and morphological variations in the oxides can be easily obtained by modifying the synthetic methods and conditions. Any structural or morphological materials modification can improve the efficiency of photovoltaic materials. The project aims to obtain nanostructured CeO2:TiO2 and CeO2:TiO2:ZnO systems with potential absorptivity in the UV or UV-Vis, using solvotermal and solvotermal-microwave methodology of synthesis. The aim is to obtain systems with finely controlled morphology and composition, with subsequent evaluation of the relationship between the structural characteristics and the observed optical and electronic properties of the solids to apply in photovoltaic systems.

Scientific publications

(4)

(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)

LEANDRO F. NASCIMENTO; PAULO C. DE SOUSA FILHO; JULIANA F. LIMA; OSVALDO A. SERRA. Kinetic Parameters of Soot Oxidation Catalyzed by Nanosized ZnO-CeO₂ Solids. Journal of the Brazilian Chemical Society, v. 26, n. 7, p. 1315-1320, 2015-07-00. (12/24165-6, 13/01669-1)

NASCIMENTO, LEANDRO F.; DE SOUSA FILHO, PAULO C.; LIMA, JULIANA F.; SERRA, OSVALDO A.. Kinetic Parameters of Soot Oxidation Catalyzed by Nanosized ZnO-CeO2 Solids. Journal of the Brazilian Chemical Society, v. 26, n. 7, p. 1315-1320, JUL 2015. (13/01669-1, 12/24165-6)

DE LIMA, JULIANA FONSECA; HARUNSANI, MOHAMMAD HILNI; MARTIN, DAVID JAMES; KONG, DAN; DUNNE, PETER W.; GIANOLIO, DIEGO; KASHTIBAN, REZA J.; SLOAN, JEREMY; SERRA, OSVALDO ANTONIO; TANG, JUNWANG; et al. Control of chemical state of cerium in doped anatase TiO2 by solvothermal synthesis and its application in photocatalytic water reduction. JOURNAL OF MATERIALS CHEMISTRY A, v. 3, n. 18, p. 9890-9898, 2015. (12/24165-6, 13/11948-5)

LIMA, JULIANA F.; DE SOUSA FILHO, PAULO C.; SERRA, OSVALDO A.. Single crystalline rhabdophane-type CePO4 nanoparticles as efficient UV filters. CERAMICS INTERNATIONAL, v. 42, n. 6, p. 7422-7431, MAY 1 2016. (13/01669-1, 12/24165-6, 08/09629-0, 14/22930-2)