Progress in research of photocatalytic hydrogen production from overall water splitting

With a view to the particularity of overall water splitting,the preparation of photocatalytic materials and their performance for hydrogen and oxygen production from overall water splitting are reviewed in relation to the design of structure and energy band of photocatalytic materials as well as their surface modification.The principle of two step reaction(Z system) for overall water splitting and several currently available Z systems are introduced.Furthermore,existing problems of photocatalytic overall water splitting are also briefed.