Recently, a research team led by Prof. Huang Weixin from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) realized the production of oxygenated chemicals from methane and H2O2 with oxide semiconductor as photocatalyst, revealed a new strategy for improving H2O2 utilization and photocatalytic conversion efficiency from methane to oxygenates, and studied the photocatalytic activity and selectivity by tuning TiO2 facets.