摘要
Semiconductor photocatalytic reactions are, by definition,light‐induced reactions driven by surface photogenerated electron‐hole pairs. Photogenerated electrons, with strong reduction ability, can be utilized for hydrogen production from splitting water, as well as solar‐fuel emergency from CO2 reduction. Meanwhile, photogenerated holes, with powerful oxidation ability, also become judicious choice for disinfection,pollutant contamination and self‐cleaning coating.Photocatalytic technology becomes prevalent solution for environmental purification and solar‐energy conversion. They have found unprecedented opportunities and garnered great interest in environmental, energy, building materials and chemical industries. The investigation on them in China is at the frontline in comparison to its international counterparts.The quantity of “Essential Science Indicators (ESI) highly‐cited papers” over the past decade was 2169. Among which,mainland Chinese researchers have published 1185 papers in total; while American and Japan have published 428 and 151 papers, respectively. Obviously, Chinese occupies the highest share (54.6%), followed by American (19.7%) and Japan (7%).