%0 Journal Article
%A Nguyen, Thi Hoa
%A Vuong, Van Cuong
%A Nguyen, Dinh Lam
%D 2018
%F SisLab:3322
%I Elsevier
%J Mechanism of the photocatalytic activity of p-Si(100)/n-ZnO nanorods heterojunction
%P 397-402
%T Mechanism of the photocatalytic activity of p-Si(100)/n-ZnO nanorods heterojunction
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/3322/
%V 204
%X A heterojunction of p-Si(100)/n-ZnO nanorods was fabricated by a simple hydrothermal method. The  photocatalytic activity of this heterojunction was examined by degradation of Rhodamine B (RhB) under  UV light irradiation. The results indicated that the p-Si(100)/n-ZnO nanorods heterojunction exhibits  higher photocatalytic activity compared to that of a glass/n-ZnO nanorods. The inner electric field created  by the space charge region of heterojunction will oppose the recombination of photogenerated electrons  and holes. Furthermore, this heterojunction serves as a convenient recyclable and effective photocatalyst.  The photodecomposition rate of RhB after 5 cycles is negligible change in an experiment using this  heterojunction.