Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications
Radial TiO<sub>2</sub> nanorod-based mesocrystals (TiO<sub>2</sub>-NR MCs) or so-called “sea-urchin-like microspheres” possess not only attractive appearance but also excellent potential as photocatalyst and electrode materials. As a new type of TiO<sub>2</sub>-NR...
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MDPI AG
2021-10-01
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| Online Access: | https://www.mdpi.com/2073-4344/11/11/1298 |
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| author | Atsunobu Akita Hiroaki Tada |
| author_facet | Atsunobu Akita Hiroaki Tada |
| author_sort | Atsunobu Akita |
| collection | DOAJ |
| description | Radial TiO<sub>2</sub> nanorod-based mesocrystals (TiO<sub>2</sub>-NR MCs) or so-called “sea-urchin-like microspheres” possess not only attractive appearance but also excellent potential as photocatalyst and electrode materials. As a new type of TiO<sub>2</sub>-NR MCs, we have recently developed a radial heteromesocrystal photocatalyst consisting of SnO<sub>2</sub>(head) and rutile TiO<sub>2</sub> nanorods(tail) (TiO<sub>2</sub>-NR//SnO<sub>2</sub> HEMCs, symbol “//” denotes heteroepitaxial junction) with the SnO<sub>2</sub> head oriented in the central direction in a series of the studies on the nanohybrid photocatalysts with atomically commensurate junctions. This review article reports the fundamentals of TiO<sub>2</sub>-NR MCs and the applications to photocatalysts and electrodes. Firstly, the synthesis and characterization of TiO<sub>2</sub>-NR//SnO<sub>2</sub> HEMCs is described. Secondly, the photocatalytic activity of recent TiO<sub>2</sub>-NR MCs and the photocatalytic action mechanism are discussed. Thirdly, the applications of TiO<sub>2</sub>-NR MCs and the analogs to the electrodes of solar cells and lithium-ion batteries are considered. Finally, we summarize the conclusions with the possible future subjects. |
| first_indexed | 2024-03-10T05:37:59Z |
| format | Article |
| id | doaj.art-107df0ffeb4a471daae402c387d880b4 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T05:37:59Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
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| spelling | doaj.art-107df0ffeb4a471daae402c387d880b42023-11-22T22:45:08ZengMDPI AGCatalysts2073-43442021-10-011111129810.3390/catal11111298Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and ApplicationsAtsunobu Akita0Hiroaki Tada1Graduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, JapanGraduate School of Science and Engineering, Kindai University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502, JapanRadial TiO<sub>2</sub> nanorod-based mesocrystals (TiO<sub>2</sub>-NR MCs) or so-called “sea-urchin-like microspheres” possess not only attractive appearance but also excellent potential as photocatalyst and electrode materials. As a new type of TiO<sub>2</sub>-NR MCs, we have recently developed a radial heteromesocrystal photocatalyst consisting of SnO<sub>2</sub>(head) and rutile TiO<sub>2</sub> nanorods(tail) (TiO<sub>2</sub>-NR//SnO<sub>2</sub> HEMCs, symbol “//” denotes heteroepitaxial junction) with the SnO<sub>2</sub> head oriented in the central direction in a series of the studies on the nanohybrid photocatalysts with atomically commensurate junctions. This review article reports the fundamentals of TiO<sub>2</sub>-NR MCs and the applications to photocatalysts and electrodes. Firstly, the synthesis and characterization of TiO<sub>2</sub>-NR//SnO<sub>2</sub> HEMCs is described. Secondly, the photocatalytic activity of recent TiO<sub>2</sub>-NR MCs and the photocatalytic action mechanism are discussed. Thirdly, the applications of TiO<sub>2</sub>-NR MCs and the analogs to the electrodes of solar cells and lithium-ion batteries are considered. Finally, we summarize the conclusions with the possible future subjects.https://www.mdpi.com/2073-4344/11/11/1298TiO<sub>2</sub>-based mesocrystalshomomesocrystalsheteromesocrystalsphotocatalystsoxygen reduction reactionelectrodes |
| spellingShingle | Atsunobu Akita Hiroaki Tada Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications Catalysts TiO<sub>2</sub>-based mesocrystals homomesocrystals heteromesocrystals photocatalysts oxygen reduction reaction electrodes |
| title | Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications |
| title_full | Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications |
| title_fullStr | Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications |
| title_full_unstemmed | Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications |
| title_short | Radial TiO<sub>2</sub> Nanorod-Based Mesocrystals: Synthesis, Characterization, and Applications |
| title_sort | radial tio sub 2 sub nanorod based mesocrystals synthesis characterization and applications |
| topic | TiO<sub>2</sub>-based mesocrystals homomesocrystals heteromesocrystals photocatalysts oxygen reduction reaction electrodes |
| url | https://www.mdpi.com/2073-4344/11/11/1298 |
| work_keys_str_mv | AT atsunobuakita radialtiosub2subnanorodbasedmesocrystalssynthesischaracterizationandapplications AT hiroakitada radialtiosub2subnanorodbasedmesocrystalssynthesischaracterizationandapplications |