Heterogeneous photocatalysis with semiconductors has been applied to water purification.This method is promising for the degradation of toxic and bioresistant organic compound inaqueous solution.

• 光催化剂是一项刚刚兴起的新型现代水处理技术，能广泛地利用天然能源，对多种有机物有明显降解效果，因而具有广阔的应用前景。