Effect of ball milling process on the photocatalytic performance of CdS ...
The mass ratio of corundum balls and materials was 20:1. Place the ball mill tanks in the ball mill after the ingredients are finished. (2) ... Every 30 min, 4 mL of the solution was removed by a pipette and placed it in a centrifuge tube in the opaque collection box. (6) The samples of the solution collected in steps (3) and (5) were ...