fig17

Figure 17. Transformation process of monoclinic ZrS₃ into hexagonal ZrS₂ from the [010] (A-C) and [001] (D-F) views. (A, D) Crystal structure of monolayer ZrS₃ with a boundary of 1 × 3 × 1. (B, E) Crystal structure of monolayer ZrS₃ after desulfuration of S₂^2- ions. (C, F) Crystal structure of monolayer ZrS₂ with a boundary of 1 × 3 × 1. (G) Activity of H₂O₂ and benzonitrile production for a repeated photoreaction sequence with ZrS_1-yS_2-x (15/100) under simulated sunlight irradiation [ZrSS_2-x annealed for X time was denoted as ZrSS_2-x(X), and ZrS_1-yS_2-x annealed for X min and treated with Y mg Li was denoted as ZrS_1-yS_2-x(X/Y)]. (H) H₂O₂ and benzonitrile production rates. Reproduced from Ref.^[174] with permission from Springer Nature.