摘要：Photocatalytic decomposition of sugars is a promising way of providing H_(2),CO,and HCOOH as sus-tainable energy ***,the production of C_(1)chemicals requires the cleavage of robust C−C bonds in sugars with concurrent production of H_(2),which remains ***,the photo-catalytic activity for glucose decomposition to HCOOH,CO(C_(1)chemicals),and H_(2)on cu/TiO_(2)was enhanced by nitrogen *** to nitrogen doping,atomically dispersed and stable cu sites resistant to light irradiation are formed on cu/TiO_(2).The electronic interaction between cu and nitrogen ions originates valence band structure and defect levels composed of N 2p orbit,distinct from undoped cu/TiO_(2).Therefore,the lifetime of charge carriers is prolonged,resulting in the pro-duction of C_(1)chemicals and H_(2)with productivities 1.7 and 2.1 folds that of cu/TiO_(2).This work pro-vides a strategy to design coordinatively stable cu ions for photocatalytic biomass conversion.