Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances
A TiO<sub>2</sub> nanorod template was successfully decorated with a copper oxide layer with various crystallographic phases using sputtering and postannealing procedures. The crystallographic phase of the layer attached to the TiO<sub>2</sub> was adjusted from a single Cu<...
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| Format: | Article |
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MDPI AG
2022-07-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/15/2634 |
| _version_ | 1797412848474783744 |
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| author | Yuan-Chang Liang Tsun-Hsuan Li |
| author_facet | Yuan-Chang Liang Tsun-Hsuan Li |
| author_sort | Yuan-Chang Liang |
| collection | DOAJ |
| description | A TiO<sub>2</sub> nanorod template was successfully decorated with a copper oxide layer with various crystallographic phases using sputtering and postannealing procedures. The crystallographic phase of the layer attached to the TiO<sub>2</sub> was adjusted from a single Cu<sub>2</sub>O phase or dual Cu<sub>2</sub>O–CuO phase to a single CuO phase by changing the postannealing temperature from 200 °C to 400 °C. The decoration of the TiO<sub>2</sub> (TC) with a copper oxide layer improved the light absorption and photoinduced charge separation abilities. These factors resulted in the composite nanorods demonstrating enhanced photoactivity compared to that of the pristine TiO<sub>2</sub>. The ternary phase composition of TC350 allowed it to achieve superior photoactive performance compared to the other composite nanorods. The possible Z-scheme carrier movement mechanism and the larger granular size of the attached layer of TC350 under irradiation accounted for the superior photocatalytic activity in the degradation of RhB dyes. |
| first_indexed | 2024-03-09T05:08:11Z |
| format | Article |
| id | doaj.art-83944584867b47aaa50634f2bf363f0b |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T05:08:11Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-83944584867b47aaa50634f2bf363f0b2023-12-03T12:52:11ZengMDPI AGNanomaterials2079-49912022-07-011215263410.3390/nano12152634Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive PerformancesYuan-Chang Liang0Tsun-Hsuan Li1Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, TaiwanDepartment of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung 20224, TaiwanA TiO<sub>2</sub> nanorod template was successfully decorated with a copper oxide layer with various crystallographic phases using sputtering and postannealing procedures. The crystallographic phase of the layer attached to the TiO<sub>2</sub> was adjusted from a single Cu<sub>2</sub>O phase or dual Cu<sub>2</sub>O–CuO phase to a single CuO phase by changing the postannealing temperature from 200 °C to 400 °C. The decoration of the TiO<sub>2</sub> (TC) with a copper oxide layer improved the light absorption and photoinduced charge separation abilities. These factors resulted in the composite nanorods demonstrating enhanced photoactivity compared to that of the pristine TiO<sub>2</sub>. The ternary phase composition of TC350 allowed it to achieve superior photoactive performance compared to the other composite nanorods. The possible Z-scheme carrier movement mechanism and the larger granular size of the attached layer of TC350 under irradiation accounted for the superior photocatalytic activity in the degradation of RhB dyes.https://www.mdpi.com/2079-4991/12/15/2634microstructurecompositesphotoactivity |
| spellingShingle | Yuan-Chang Liang Tsun-Hsuan Li Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances Nanomaterials microstructure composites photoactivity |
| title | Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances |
| title_full | Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances |
| title_fullStr | Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances |
| title_full_unstemmed | Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances |
| title_short | Sputtering-Assisted Synthesis of Copper Oxide–Titanium Oxide Nanorods and Their Photoactive Performances |
| title_sort | sputtering assisted synthesis of copper oxide titanium oxide nanorods and their photoactive performances |
| topic | microstructure composites photoactivity |
| url | https://www.mdpi.com/2079-4991/12/15/2634 |
| work_keys_str_mv | AT yuanchangliang sputteringassistedsynthesisofcopperoxidetitaniumoxidenanorodsandtheirphotoactiveperformances AT tsunhsuanli sputteringassistedsynthesisofcopperoxidetitaniumoxidenanorodsandtheirphotoactiveperformances |