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Investigation of the photoluminescence and photocatalytic properties of pure and Mn, Cu, and Zn-doped BaWO4 and BaMoO4 powders

Grant number: 12/14004-5
Support Opportunities:Scholarships in Brazil - Post-Doctorate
Effective date (Start): November 01, 2012
Effective date (End): April 30, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
Principal Investigator:Elson Longo da Silva
Grantee:Júlio César Sczancoski
Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:08/57872-1 - National Institute for Materials Science in Nanotechnology, AP.TEM


In the area of materials science there is an interest in finding new compounds with attractive visible light emission properties for the development of electro-optic devices or with high photocatalytic activities for the degradation of toxic dyes produced by the pigment or textile industries. For these reasons, this research project intends to investigate the morphological, photoluminescence and photocatalytic properties of pure and Mn, Cu and Zn-doped BaMoO4 and BaWO4 powders, which will be formed by the hot-injection and microwave-hydrothermal methods. In these syntheses, surfactants (cationic, anionic or polymeric) can be added to the liquid phase to control the particle size and shape. Theobtained powders will be characterized by X-ray diffraction and, Raman and infrared spectroscopies. The morphological characteristics of the crystals will be verified by means offield emission gun scanning electron microscopy and/or transmission electron. The opticalproperties of these materials will be investigated by ultraviolet visible (UV-vis) absorption spectroscopy and photoluminescence measurements. The photocatalytic properties (usingultraviolet radiation) will be analyzed through the UV-vis spectroscopy, where will be monitored the maximum absorption band of the organic dyes (rhodamine B and methyl orange) dissolved in aqueous solution.

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Scientific publications (22)
(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)
PEREIRA, WYLLAMANNEY DA S.; GOZZO, CIPRIANO B.; LONGO, ELSON; LEITE, EDSON R.; SCZANCOSKI, JULIO C.. Investigation on the photocatalytic performance of Ag4P2O7 microcrystals for the degradation of organic pollutants. Applied Surface Science, v. 493, p. 1195-1204, . (15/11917-8, 16/23663-3, 13/07296-2, 12/14004-5)
PEREIRA, WYLLAMANNEY DA S.; SCZANCOSKI, JULIO C.; CALDERON, YORMARY N. C.; MASTELARO, VALMOR R.; BOTELHO, GLEICE; MACHADO, THALES R.; LEITE, EDSON R.; LONGO, ELSON. Influence of Cu substitution on the structural ordering, photocatalytic activity and photoluminescence emission of Ag3-2xCuxPO4 powders. Applied Surface Science, v. 440, p. 61-72, . (12/14004-5, 15/11917-8, 16/23663-3, 13/07296-2)
PEREIRA, WYLLAMANNEY DA S.; GOZZO, CIPRIANO B.; LONGO, ELSON; LEITE, EDSON R.; SCZANCOSKI, JULIO C.. Morphological aspects and optical properties of Ag4P2O7. Materials Letters, v. 248, p. 193-196, . (15/11917-8, 12/14004-5)
GOUVEIA, A. F.; VIEIRA, V. E. M.; SCZANCOSKI, J. C.; LEMOS, P. S.; ROUT, S. K.; ARUL, N. S.; LONGO, E.; CAVALCANTE, L. S.. Electronic Structure, Morphological Aspects, and Photocatalytic Discoloration of Three Organic Dyes with MgWO4 Powders Synthesized by the Complex Polymerization Method. Journal of Inorganic and Organometallic Polymers and Materials, v. 30, n. 8, . (12/14004-5, 13/26671-9, 17/11986-5)
PEREIRA, PAULA F. S.; SANTOS, CLAYANE C.; GOUVEIA, AMANDA F.; FERRER, MATEUS M.; PINATTI, IVO M.; BOTELHO, GLEICE; SAMBRANO, JULIO R.; ROSA, IEDA L. V.; ANDRES, JUAN; LONGO, ELSON. alpha-Ag2-2xZnxWO4 (0 <= x <= 0.25) Solid Solutions: Structure, Morphology, and Optical Properties. Inorganic Chemistry, v. 56, n. 13, p. 7360-7372, . (12/14004-5, 13/23995-8, 16/07476-9, 14/14171-4, 13/26671-9, 13/07296-2)
ARAUJO, M. M.; SILVA, L. K. R.; SCZANCOSKI, J. C.; ORLANDI, M. O.; LONGO, E.; SANTOS, A. G. D.; SA, J. L. S.; SANTOS, R. S.; LUZ, JR., G. E.; CAVALCANTE, L. S.. Anatase TiO2 nanocrystals anchored at inside of SBA-15 mesopores and their optical behavior. Applied Surface Science, v. 389, p. 1137-1147, . (12/14004-5, 13/07296-2)
GHOSH, S. K.; ROUT, S. K.; TIWARI, A.; YADAV, P.; SCZANCOSKI, J. C.; FILHO, M. G. R.; CAVALCANTE, L. S.. Structural refinement, Raman spectroscopy, optical and electrical properties of (Ba1-xSrx)MoO4 ceramics. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 26, n. 11, p. 8319-8335, . (12/14004-5)
SILVA, R. C.; GOUVEIA, A. F.; SCZANCOSKI, J. C.; SANTOS, R. S.; SA, J. L. S.; LONGO, E.; CAVALCANTE, L. S.. Electronic Structure, Morphological Aspects, Optical and Electrochemical Properties of RuO2 Nanocrystals. ELECTRONIC MATERIALS LETTERS, v. 15, n. 5, p. 645-653, . (12/14004-5)
ROCA, ROMAN ALVAREZ; LEMOS, PABLO S.; GRACIA, LOURDES; ANDRES, JUAN; LONGO, ELSON. Uncovering the metastable gamma-Ag2WO4 phase: a joint experimental and theoretical study. RSC ADVANCES, v. 7, n. 10, p. 5610-5620, . (12/14004-5, 13/07296-2)
ROCA, ROMAN A.; GOUVEIA, AMANDA F.; LEMOS, PABLO S.; GRACIA, LOURDES; ANDRES, JUAN; LONGO, ELSON. Formation of Ag Nanoparticles on beta-Ag2WO4 through Electron Beam Irradiation: A Synergetic Computational and Experimental Study. Inorganic Chemistry, v. 55, n. 17, p. 8661-8671, . (13/07296-2, 13/26671-9, 12/14004-5)
PEREIRA, WYLLAMANNEY DA S.; DESTRO, FABRICIO B.; GOZZO, CIPRIANO B.; LEITE, EDSON R.; SCZANCOSKI, JULIO C.. Insight into the enhanced photocatalytic properties of AgBr/Ag4P2O7 composites synthesized via in situ ion exchange reaction. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 9, n. 1, . (15/11917-8, 16/23663-3, 12/14004-5)
SOUZA, E. L. S.; SCZANCOSKI, J. C.; NOGUEIRA, I. C.; ALMEIDA, M. A. P.; ORLANDI, M. O.; LI, M. S.; LUZ, R. A. S.; FILHO, M. G. R.; LONGO, E.; CAVALCANTE, L. S.. Structural evolution, growth mechanism and photoluminescence properties of CuWO4 nanocrystals. ULTRASONICS SONOCHEMISTRY, v. 38, p. 256-270, . (12/14004-5, 13/07296-2)
ROCA, ROMAN ALVAREZ; LEMOS, PABLO S.; ANDRES, JUAN; LONGO, ELSON. Formation of Ag nanoparticles on metastable beta-Ag2WO4 microcrystals induced by electron irradiation. Chemical Physics Letters, v. 644, p. 68-72, . (12/14004-5, 13/07296-2)
SCZANCOSKI, JULIO C.; MAYA-JOHSON, SANTIAGO; PEREIRA, WYLLAMANNEY DA SILVA; LONGO, ELSON; LEITE, EDSON R.. Atomic Diffusion Induced by Electron-Beam Irradiation: An in Situ Study of Ag Structures Grown from alpha-Ag2WO4. Crystal Growth & Design, v. 19, n. 1, p. 106-115, . (16/23663-3, 13/07296-2, 15/11917-8, 15/07044-9, 12/14004-5)
SCZANCOSKI, J. C.; AVANSI, W.; COSTA, M. G. S.; LI, M. SIU; MASTELARO, V. R.; SANTOS, R. S.; LONGO, E.; CAVALCANTE, L. S.. Effect of different strontium precursors on the growth process and optical properties of SrWO4 microcrystals. Journal of Materials Science, v. 50, n. 24, p. 8089-8103, . (12/14004-5, 13/07296-2)
ROCA, R. A.; SCZANCOSKI, J. C.; NOGUEIRA, I. C.; FABBRO, M. T.; ALVES, H. C.; GRACIA, L.; SANTOS, L. P. S.; DE SOUSA, C. P.; ANDRES, J.; LUZ, JR., G. E.; et al. Facet-dependent photocatalytic and antibacterial properties of alpha-Ag2WO4 crystals: combining experimental data and theoretical insights. CATALYSIS SCIENCE & TECHNOLOGY, v. 5, n. 8, p. 4091-4107, . (12/14004-5, 13/07296-2)
GOUVEIA, A. F.; SCZANCOSKI, J. C.; FERRER, M. M.; LIMA, A. S.; SANTOS, M. R. M. C.; LI, M. SIU; SANTOS, R. S.; LONGO, E.; CAVALCANTE, L. S.. Experimental and Theoretical Investigations of Electronic Structure and Photoluminescence Properties of beta-Ag2MoO4 Microcrystals. Inorganic Chemistry, v. 53, n. 11, p. 5589-5599, . (12/14004-5, 12/07967-1)
GOZZO, CIPRIANO B.; SOARES, MARIO R. S.; SCZANCOSKI, JULIO C.; NOGUEIRA, ICAMIRA C.; LEITE, EDSON R.. Investigation of the electrocatalytic performance for oxygen evolution reaction of Fe-doped lanthanum nickelate deposited on pyrolytic graphite sheets. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v. 44, n. 39, p. 21659-21672, . (12/14004-5, 13/07296-2)
MACEDO, NADIA G.; GOUVEIA, AMANDA F.; ROCA, ROMAN A.; ASSIS, MARCELO; GRACIA, LOURDES; ANDRES, JUAN; LEITE, EDSON R.; LONGO, ELSON. Surfactant-Mediated Morphology and Photocatalytic Activity of alpha-Ag2WO4 Material. Journal of Physical Chemistry C, v. 122, n. 15, p. 8667-8679, . (17/07240-8, 13/07296-2, 13/26671-9, 12/14004-5)
PEREIRA, P. F. S.; GOUVEIA, A. F.; ASSIS, M.; DE OLIVEIRA, R. C.; PINATTI, I. M.; PENHA, M.; GONCALVES, R. F.; GRACIA, L.; ANDRES, J.; LONGO, E.. ZnWO4 nanocrystals: synthesis, morphology, photoluminescence and photocatalytic properties. Physical Chemistry Chemical Physics, v. 20, n. 3, p. 1923-1937, . (17/07240-8, 12/14004-5, 13/23995-8, 17/13008-0, 14/14171-4, 13/26671-9, 13/07296-2)
DE PAIVA, RAFAEL TEXEIRA; NOGUEIRA, ICAMIRA COSTA; SCZANCOSKI, JULIO CESAR; LEMOS, PABLO SANTANA; ELIAS MATOS, JOSE MILTON; SANTOS, REGINALDO SILVA; LONGO, ELSON; CAVALCANTE, LAECIO SANTOS. Effect of the pH pre-adjustment on the formation of In(2)W(3)O(12 )and In6WO12 powders: Cluster coordination and optical band gap. BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO, v. 59, n. 1, p. 2-14, . (13/07296-2, 12/14004-5)
BOTELHO, G.; SCZANCOSKI, J. C.; ANDRES, J.; GRACIA, L.; LONGO, E.. Experimental and Theoretical Study on the Structure, Optical Properties, and Growth of Metallic Silver Nanostructures in Ag3PO4. Journal of Physical Chemistry C, v. 119, n. 11, p. 6293-6306, . (12/14004-5, 08/57872-1, 13/07296-2)

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