As bacteria widely existed in aquaculture, aquatic pathogens can cause serious diseasein aquatic organisms and it results in severe economic loss to aquaculture. Nowadays, a lotof traditional fungicides and antibiotics are commonly used for control of these aquaticpathogens. However, it is helpless for the sterilization and sometimes even causes drugtolerance in pathogens and drug residues in aquatic organisms. Therefore, to overcome thesedefects, many kinds of photocatalysts were used for the sterilization...