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A BiVO4photoanode with exposed(040)facets was prepared to enhance its photoelectrochemical performance. The exposure of the(040)crystal planes of the BiVO4film was induced by adding NaCl to the precursor solution. The as-prepared BiVO4photoanode exhibits higher solar-light absorption and charge-separation efficiency compared to those of an anode prepared without adding NaCl.To our knowledge, the photocurrent density(1.26 mA cm-2at 1.23 V vs.RHE)of as-prepared BiVO4photoanode is the highest according to the reports for bare BiVO4films under simulated AM1.5G solar light,and the incident photon-to-current conversion efficiency is above 35% at 400 nm. The photoelectrochemical (PEC) water-splitting performance was also dramatically improved with a hydrogen evolution rate of 9.11 μmol cm-2h-1,which is five times compared with the BiVO4photoanode prepared without NaCl (1.82 μmol cm-2h-1). Intensity-modulated photocurrent spectroscopy and transient photocurrent mea-surements show a higher charge-carrier-transfer rate for this photoanode.These results demonstrate a promising approach for the development of high-performance BiVO4photoanodes which can be used for efficient PEC water splitting and degradation of organic pollutants.