One-step pasting method for preparation of flat-sheet ceramic membrane

Flat-sheet ceramic membrane without any transition layer was prepared directly applied on the surface of the support layer by a one-step pasting method. The preparation of the different thickness of plastic clay slice as the separation layer is the key point in membrane fabrication. The result shows that the formation of the defect-free ceramic membrane with even pore-size distribution after calcinated at 1,350 degrees C for 2 h. With increasing the thickness of the membrane layer, the average pore-size did not change notably. But, the permeability and the largest hole of the membrane decreased gradually. Additionally, the defects of the support had no effect on the performance of the separation layer with the one-step pasting method. Meanwhile, this method can improve the efficiency greatly and save the cost of the production.