Fig. 6From: ZnO Porous Nanosheets with Partial Surface Modification for Enhanced Charges Separation and High Photocatalytic Activity Under Solar IrradiationPhotocurrent curves versus time: a ZnO, b ZB_0.01, c ZB_0.05, d ZB_0.2, and e BiVO4. The irradiating light was produced by the xenon lamp with a UVIRCUT 420 filterBack to article page