7 documents found, page 1 of 1
Cation-exchange mediated synthesis of hydrogen and sodium titanates heterojunct...
Iani, Isabela M. [UNESP]; Teodoro, Vinícius; Marana, Naiara L. [UNESP]; Coleto, Ubirajara; Sambrano, Julio R. [UNESP]; Simões, Alexandre Z. [UNESP]Made available in DSpace on 2021-06-25T11:05:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-02-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Na2Ti3O7/H2Ti3O7 heterojunction nanotubes were obtained through the microwave-assisted hydrothermal method (MAH) with different band gap energy engineering. This study aimed to synthesize sodium titanate nanotubes and evaluate the inf...
Correlation of photocatalytic activity and defects generated in Ca2+-based hete...
Coleto, Ubirajara [UNESP]; Amoresi, Rafael A. C. [UNESP]; Pereira, Chrystopher A. M. [UNESP]; Schmidt, Bruna W. [UNESP]; Iani, Isabela M. [UNESP]Made available in DSpace on 2021-06-25T11:11:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01; Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); In this work a new semiconductor based on calcium heterojunction (CaO/CaTiO3) was evaluated to the optical properties correlated to crystalline lattice defects. The heterojunctions of the semiconductor were prepared by the sol–gel route and ...
Nanosized ferroelectrics: Preparation, properties, and applications
Lustosa, Glauco M.M.M. [UNESP]; Teixeira, Guilhermina F. [UNESP]; Bastos, Wagner B. [UNESP]; Zanetti, Sonia M. [UNESP]; Perazolli, Leinig A. [UNESP]Made available in DSpace on 2020-12-12T01:20:29Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01; Top-down and bottom-up are two kinds of processes employed to obtain ferroelectric nanostructures. Top-down processes are physical methods involving the use of a bulk ferroelectric material to create coherently and continuously ordered nanosized structures (such as focused ion beam milling, nanoimprint ...
Influence of defects on photoluminescent and photocatalytic behavior of CaO/SrT...
Coleto Junior, Ubirajara [UNESP]; Amoresi, Rafael A.C. [UNESP]; Pereira, Chrystopher A.M. [UNESP]; Simões, Alexandre Z. [UNESP]Made available in DSpace on 2019-10-06T17:09:14Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-08-15; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); CaO/SrTiO3 heterostructures were fabricated, and their photocatalytic activity for the discoloration of Rhodamine B (RhB) dye was evaluated. SrTiO3 particles were obtained...
An approach for photodegradation mechanism at TiO2/SrTiO3 interface
Coleto, Ubirajara [UNESP]; Amoresi, Rafael A. C. [UNESP]; Teodoro, Vinícius; Iani, Isabela M. [UNESP]; Longo, Elson; Zaghete, Maria A. [UNESP]Made available in DSpace on 2019-10-06T15:23:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-12-01; TiO2/SrTiO3 heterojunction powders were obtained and characterized, and their photocatalytic potential was evaluated. The formation of the solid–solid interface was evidenced by secondary-phase formation in the interface region, which was observed using transmission electron microscopy. The photocatalyt...
Electrosteric colloidal stabilization for obtaining SrTiO3/TiO2 heterojunction:...
Amoresi, Rafael A.C. [UNESP]; Teodoro, Vinícius; Teixeira, Guilhermina F. [UNESP]; Li, Maximo S.; Simões, Alexandre Z. [UNESP]Made available in DSpace on 2018-12-11T17:34:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-04-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); Researches on solids heterojunctions has proven to be an important field for technological applications due to synergism achieved by interface phenomena. In this work, we ...
Increased photocatalytic activity induced by TiO2/Pt/SnO2 heterostructured films
Testoni, Glaucio O. [UNESP]; Amoresi, Rafael A.C. [UNESP]; Lustosa, Glauco M.M.M. [UNESP]; Costa, João P.C. [UNESP]; Nogueira, Marcelo V. [UNESP]Made available in DSpace on 2018-12-11T17:35:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-02-01; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP); In this work, a high photocatalytic activity was attained by intercalating a Pt layer between SnO2 and TiO2 semiconductors, which yielded a TiO2/Pt/SnO2 - type heterostruc...