Feasible Tuning of Surface OVs on (001) TiO2 for Superior Photocatalytic Nitrogen Fixation Activity

Abstract A feasible tuning method for oxygen vacancies was realized by annealing under 3 atm H 2 with (001)‐exposed TiO 2 nanosheets. The colored TiO 2 sample exhibits an excellent N 2 photo‐fixation rate owing to the abundant oxygen vacancies (OVs) thus demonstrating that annealing with high pressure H 2 is exceedingly efficient for tuning surface OVs.