Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures
Nanowire/nanorod TiO<inf>2</inf> structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO<inf>2</inf> nanopowders. The first precursor was TiO<inf>2</inf> obtained by the sol-gel...
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_02731223_v70_n6_p972_Cabrera |
| Aporte de: |
| id |
todo:paper_02731223_v70_n6_p972_Cabrera |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_02731223_v70_n6_p972_Cabrera2023-10-03T15:15:49Z Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures Cabrera, J. Alarcón, H. López, A. Candal, R. Acosta, D. Rodriguez, J. 1D TiO<inf>2</inf> nanostructures Hydrothermal treatment Photocatalytic activity Nanowires Photocatalysis Powders Sol-gel process 1-D nanostructures 1-d TiO Brunauer-emmett-teller surface areas Higher efficiency Hydrothermal treatments One dimensional (1D) nanostructures Photocatalytic activities Tubular structures Titanium dioxide 1 dimensional titanium oxide nanostructure pralidoxime mesilate rhodamine B titanium dioxide nanoparticle unclassified drug nanomaterial powder rhodamine titanium titanium dioxide catalysis crystallinity hydrothermal activity one-dimensional modeling oxide adsorption Article controlled study degradation field emission scanning electron microscopy Fourier transformation ion exchange photocatalysis synthesis thermostability transmission electron microscopy X ray diffraction catalysis chemistry particle size photolysis powder water management Catalysis Nanostructures Particle Size Photolysis Powders Rhodamines Titanium Water Purification Nanowire/nanorod TiO<inf>2</inf> structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO<inf>2</inf> nanopowders. The first precursor was TiO<inf>2</inf> obtained by the sol-gel process (SG-TiO<inf>2</inf>); the second was the well-known commercial TiO<inf>2</inf> P-25 (P25-TiO<inf>2</inf>). Anatase-like 1D TiO<inf>2</inf> nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO<inf>2</inf> powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO<inf>2</inf> preserved the tubular structure after annealing, displaying a higher Brunauer-Emmett-Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO<inf>2</inf> powder. However, the rod-like nanostructures obtained from SG-TiO<inf>2</inf> displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO<inf>2</inf> in both materials. © IWA Publishing 2014. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02731223_v70_n6_p972_Cabrera |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
1D TiO<inf>2</inf> nanostructures Hydrothermal treatment Photocatalytic activity Nanowires Photocatalysis Powders Sol-gel process 1-D nanostructures 1-d TiO Brunauer-emmett-teller surface areas Higher efficiency Hydrothermal treatments One dimensional (1D) nanostructures Photocatalytic activities Tubular structures Titanium dioxide 1 dimensional titanium oxide nanostructure pralidoxime mesilate rhodamine B titanium dioxide nanoparticle unclassified drug nanomaterial powder rhodamine titanium titanium dioxide catalysis crystallinity hydrothermal activity one-dimensional modeling oxide adsorption Article controlled study degradation field emission scanning electron microscopy Fourier transformation ion exchange photocatalysis synthesis thermostability transmission electron microscopy X ray diffraction catalysis chemistry particle size photolysis powder water management Catalysis Nanostructures Particle Size Photolysis Powders Rhodamines Titanium Water Purification |
| spellingShingle |
1D TiO<inf>2</inf> nanostructures Hydrothermal treatment Photocatalytic activity Nanowires Photocatalysis Powders Sol-gel process 1-D nanostructures 1-d TiO Brunauer-emmett-teller surface areas Higher efficiency Hydrothermal treatments One dimensional (1D) nanostructures Photocatalytic activities Tubular structures Titanium dioxide 1 dimensional titanium oxide nanostructure pralidoxime mesilate rhodamine B titanium dioxide nanoparticle unclassified drug nanomaterial powder rhodamine titanium titanium dioxide catalysis crystallinity hydrothermal activity one-dimensional modeling oxide adsorption Article controlled study degradation field emission scanning electron microscopy Fourier transformation ion exchange photocatalysis synthesis thermostability transmission electron microscopy X ray diffraction catalysis chemistry particle size photolysis powder water management Catalysis Nanostructures Particle Size Photolysis Powders Rhodamines Titanium Water Purification Cabrera, J. Alarcón, H. López, A. Candal, R. Acosta, D. Rodriguez, J. Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| topic_facet |
1D TiO<inf>2</inf> nanostructures Hydrothermal treatment Photocatalytic activity Nanowires Photocatalysis Powders Sol-gel process 1-D nanostructures 1-d TiO Brunauer-emmett-teller surface areas Higher efficiency Hydrothermal treatments One dimensional (1D) nanostructures Photocatalytic activities Tubular structures Titanium dioxide 1 dimensional titanium oxide nanostructure pralidoxime mesilate rhodamine B titanium dioxide nanoparticle unclassified drug nanomaterial powder rhodamine titanium titanium dioxide catalysis crystallinity hydrothermal activity one-dimensional modeling oxide adsorption Article controlled study degradation field emission scanning electron microscopy Fourier transformation ion exchange photocatalysis synthesis thermostability transmission electron microscopy X ray diffraction catalysis chemistry particle size photolysis powder water management Catalysis Nanostructures Particle Size Photolysis Powders Rhodamines Titanium Water Purification |
| description |
Nanowire/nanorod TiO<inf>2</inf> structures of approximately 8 nm in diameter and around 1,000 nm long were synthesized by alkaline hydrothermal treatment of two different TiO<inf>2</inf> nanopowders. The first precursor was TiO<inf>2</inf> obtained by the sol-gel process (SG-TiO<inf>2</inf>); the second was the well-known commercial TiO<inf>2</inf> P-25 (P25-TiO<inf>2</inf>). Anatase-like 1D TiO<inf>2</inf> nanostructures were obtained in both cases. The one-dimensional (1D) nanostructures synthesized from SG-TiO<inf>2</inf> powders turned into rod-like nanostructures after annealing at 400 °C for 2 h. Conversely, the nanostructures synthesized from P25-TiO<inf>2</inf> preserved the tubular structure after annealing, displaying a higher Brunauer-Emmett-Teller surface area than the first system (279 and 97 m2/g, respectively). Despite the higher surface area shown by the 1D nanostructures, in both cases the photocatalytic activity was lower than for the P25-TiO<inf>2</inf> powder. However, the rod-like nanostructures obtained from SG-TiO<inf>2</inf> displayed slightly higher efficiency than the sol-gel prepared powders. The lower photocatalytic activity of the nanostructures with respect to P-25 can be associated with the lower crystallinity of 1D TiO<inf>2</inf> in both materials. © IWA Publishing 2014. |
| format |
JOUR |
| author |
Cabrera, J. Alarcón, H. López, A. Candal, R. Acosta, D. Rodriguez, J. |
| author_facet |
Cabrera, J. Alarcón, H. López, A. Candal, R. Acosta, D. Rodriguez, J. |
| author_sort |
Cabrera, J. |
| title |
Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| title_short |
Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| title_full |
Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| title_fullStr |
Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| title_full_unstemmed |
Synthesis, characterization and photocatalytic activity of 1D TiO<inf>2</inf> nanostructures |
| title_sort |
synthesis, characterization and photocatalytic activity of 1d tio<inf>2</inf> nanostructures |
| url |
http://hdl.handle.net/20.500.12110/paper_02731223_v70_n6_p972_Cabrera |
| work_keys_str_mv |
AT cabreraj synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures AT alarconh synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures AT lopeza synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures AT candalr synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures AT acostad synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures AT rodriguezj synthesischaracterizationandphotocatalyticactivityof1dtioinf2infnanostructures |
| _version_ |
1807322165733752832 |