One-step synthesis of AgCl concave cubes by preferential overgrowth along 〈111〉 and 〈110〉 directions

A new class of AgCl microstructures, concave cubes, with preferential overgrowth along <110> and <111> directions, has been prepared in a monodisperse fashion by a wet chemical oxidization method. With high-index facets exposed, the concave cubic AgCl exhibits higher photocatalytic activity in O(2) evolution than cubic ones.