Table 4. Catalytic Performances for Propylene Epoxidation over TS-1 Samples^a.

sample	XH2O2 (%)	YPO (%)	SPO (%)	UH2O2 (%)
TS-1-S	91.9	83.3	99.5	91.0
TS-1-R1	91.6	83.8	99.0	92.4
TS-1-R2	91.4	83.0	98.4	92.3
TS-1-R3	91.8	83.6	99.6	91.4
TS-1-R4	92.0	83.5	99.1	91.6
TS-1-R5	91.3	83.6	99.4	92.1

^aReaction conditions: propylene (0.7 MPa), catalyst (150 mg), solvent (595 mmol), H₂O₂ (97 mmol), 318 K, and 30 min.