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Here we report the controlled selective deposition of Pt and PbO x dual-cocatalysts on the edged (200) and (020) facets and the main (002) facets of square-like WO 3 nanoplates, respectively. The remarkably enhanced photocatalytic activities were observed for such assembled photocatalysts in photocatalytic water oxidation. The superior performance can be attributed to not only the light-induced preferential flow of photogenerated electrons and holes onto different facets of the square-like WO 3 , thus leading to the reduction and oxidation reactions taking place on the corresponding edged and major top facets, but also the selective deposition of suitable oxidation and reduction cocatalysts onto the needed facets of square-like WO 3 to reduce the charge recombination and catalyze the redox reactions. These findings will be promising and intriguing for designing high efficiency WO 3 system for visible light water splitting.

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Light-induced preferential migration of electrons and holes to the minor (200) and (020) facets and the dominant (002) facets of square-like WO, respectively, resulted in the square-like WO nanoplates with Pt loaded mainly on dominant (002) facets shows higher photocatalytic activity than that Pt loaded on the minor facets.

Urea was used as a reactant and base retardant for the controllable synthesis of octadecahedral BiVO 4 (OD-BiVO 4 ) with exposed {111}, {010}, {011}, and {110} facets. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV/Vis spectroscopy, and Raman spectroscopy. The effect of the urea molecules on the morphology of BiVO 4 was studied. The urea molecules show a preferential [a] However, the pH value of the solution has a significant influence on the morphology of BiVO 4 . The pH values of the solu-Eur.