Doping rare earth cations with an additional chemical reduction synergistically weakened the photocatalytic performance of ceria

Constructing S‐scheme heterojunctions with tunable interfacial oxygen vacancy via UiO‐66‐NH2‐derived ZrO2‐x for efficient photocatalytic performance

“…Thus, synthesizing visible light‐responsive ZrO 2‐x semiconductor materials is of significant importance. However, during the preparation of ZrO 2‐x , introducing an excess of oxygen vacancies could lead to the recombination of electron–hole pairs, thereby diminishing the photocatalytic performance of ZrO 2‐x 24 . Therefore, controlling the bandgap by introducing oxygen vacancies while suppressing the disadvantages of excessive oxygen vacancies has become a key issue in improving the performance of photocatalysts.…”

“…However, during the preparation of ZrO 2-x , introducing an excess of oxygen vacancies could lead to the recombination of electron-hole pairs, thereby diminishing the photocatalytic performance of ZrO 2-x . 24 Therefore, controlling the bandgap by introducing oxygen vacancies while suppressing the disadvantages of excessive oxygen vacancies has become a key issue in improving the performance of photocatalysts. Based on this consideration, firstly, UiO-66-NH 2 is calcined to form ZrO 2-x octahedra with abundant surface O v .…”