ZnO Porous Nanosheets with Partial Surface Modification for Enhanced Charges Separation and High Photocatalytic Activity Under Solar Irradiation.

ABSTRACT: ZnO porous nanosheets (PNSs) with partial surface modification were fabricated by means of depositing amorphous BiVO₄ on basic zinc carbonate nanosheets followed by calcining at 500 °C. At low levels of anchored amorphous BiVO₄, the surface of ZnO PNSs was partially evolved into Bi_3.9Zn_0.4V_1.7O_10.5 (BZVO). The measurements for photocurrent and photoluminescence demonstrate that partial-surface BZVO-modified ZnO PNSs (ZB_0.01) could significantly inhibit the recombination of photoinduced carriers. This should be ascribable to the driving from surface potential difference produced by non-junction part and vertical p-n BZVO/ZnO junction part on the surface of ZB_0.01. Furthermore, the photocatalytic efficiency in degradation of

SUBMITTER: Tong Y 

PROVIDER: S-EPMC6497717 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature