Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5438934 | Ceramics International | 2017 | 5 Pages |
Abstract
For the first time, ZnO nanoparticles decorated three-dimensional (3D) Ni@graphene (Ni@GE) composites with uniform size and magnetic separation properties were synthesized by a simple and scalable one-step sol-gel method. The photocatalysts were characterized by X-ray diffraction, fourier-transform infrared spectra, field-emission scanning electron microscope, transmission electron microscopy, UV-vis diffusive reflectance spectra and photo luminescence. The results indicated the ZnO nanoparticles loaded on the outsides of the Ni@GE were no significant numbers of vacancies or apparent aggregation. Meanwhile, the introduction of 3D structured graphene material resulted in the better charge separation efficiency compared with that of the pure ZnO. More significantly, the as-prepared Ni@graphene-ZnO showed superior photocatalytic activity and stability for Cr(VI) reduction to Cr(III).
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lizhong Liu, Tonghua Sun, Hongbo Zhang, Haiqun Chen,