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Oxygen-Deficient $WO_{3}/TiO_{2}$/CC Nanorod Arrays for Visible-Light Photocatalytic Degradation of Methylene Blue
| Content Provider | MDPI |
|---|---|
| Author | Jiang, Liaochuan Gao, Xingyuan Chen, Shaoling Ashok, Jangam Kawi, Sibudjing |
| Copyright Year | 2021 |
| Description | At present, $TiO_{2}$ is one of the most widely used photocatalytic materials. However, the narrow response range to light limits the photocatalytic performance. Herein, we reported a successful construction of self-doped $R-WO_{3}/R-TiO_{2}$/CC nanocomposites on flexible carbon cloth (CC) via electrochemical reduction to increase the oxygen vacancies $(O_{vs}$), resulting in an enhanced separation efficiency of photo-induced charge carriers. The photocurrent of $R-WO_{3}/R-TiO_{2}$/CC at −1.6 V (vs. SCE) was 2.6 times higher than that of $WO_{3}/TiO_{2}$/CC, which suggested that $O_{vs}$ could improve the response to sunlight. Moreover, the photocatalytic activity of $R-WO_{3}/TiO_{2}$/CC was explored using methylene blue (MB). The degradation rate of MB could reach 68%, which was 1.3 times and 3.8 times higher than that of $WO_{3}/TiO_{2}$/CC and $TiO_{2}$/CC, respectively. Furthermore, the solution resistance and charge transfer resistance of $R-WO_{3}/R-TiO_{2}$/CC were obviously decreased. Therefore, the electrochemical reduction of nanomaterials enabled a promoted separation of photogenerated electron–hole pairs, leading to high photocatalytic activity. |
| Starting Page | 1349 |
| e-ISSN | 20734344 |
| DOI | 10.3390/catal11111349 |
| Journal | Catalysts |
| Issue Number | 11 |
| Volume Number | 11 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-11-09 |
| Access Restriction | Open |
| Subject Keyword | Catalysts Environmental Sciences Photocatalysis Electrochemical Reduction Photocatalytic Degradation Tio2 Wo3 |
| Content Type | Text |
| Resource Type | Article |
