Nguyen, Thi Dung and Tran, Minh Duc and Hoang, Van Thanh and Trinh, Duc Thien and Pham, Duc Thang and Nguyen, Dinh Lam (2020) Experimental and numerical study on photocatalytic activity of the ZnO nanorods/CuO composite film. Scientific Reports, 10 (7792). ISSN 2045-2322
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Abstract
The photocatalytic activity of the ZnO NRs/CuO composite film was investigated by using both experimental and numerical methods. The ZnO NRs/CuO composite film exhibits significantly enlarge absorption range to visible-light and suppress the recombination rate of the photogenerated electron-hole pairs, which can be well utilized as a photocatalyst. The ZnO NRs/CuO composite film also presents good stability, and reusability, and durability for photo-decomposition purpose. The optimal ZnO NRs/CuO composite film contains 1μ-thick of CuO film and 10 nm-thick of ZnO NRs film. The donor concentration in ZnO NRs film should be lower than 1016 cm−3. The short circuit current density of the optimal composite film is 25.8 mA/cm2 resulting in the calculated pseudo-order rate constant of 1.85 s−1. The enhancement in degradation efficiency of this composite film is attributed to the inner electric field and large effective surface area of ZnO NRs film.
| Item Type: | Article |
|---|---|
| Subjects: | Engineering Physics Scopus-indexed journals ISI-indexed journals |
| Divisions: | Faculty of Engineering Physics and Nanotechnology (FEPN) |
| Depositing User: | Ms. Thi Dung Nguyen |
| Date Deposited: | 11 Dec 2020 01:37 |
| Last Modified: | 26 Dec 2020 14:26 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/4208 |
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