Experimental and numerical study on photocatalytic activity of the ZnO nanorods/CuO composite film.

Autor:	Nguyen, Dung T., Tran, Minh Duc, Van Hoang, Thanh, Trinh, Duc Thien, Pham, Duc Thang, Nguyen, Dinh Lam
Předmět:	ZINC oxide PHOTOCATALYSIS NANORODS PHOTOCATALYSTS ELECTRIC fields
Zdroj:	Scientific Reports; 5/8/2020, Vol. 10 Issue 1, p1-8, 8p
Abstrakt:	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. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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