Synthesis of several molecular sieve membranes

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1: In-situ hydrothermal synthesis method: Also known as in-situ hydrothermal crystallization method, this approach involves placing the carrier in the molecular sieve synthesis solution; at a certain temperature, pressure is generated within a crystallization chamber, allowing molecular sieve crystals to form a film on the surface of the carrier. 2: Crystal method: Also known as the secondary growth method, it involves using physical techniques [such as dip-coating, polishing, ultrasonic treatment, etc.] to first form a layer of molecular sieve seeds or film on the surface of the substrate. The carrier is then placed in the molecular sieve synthesis mother liquor and crystallized into a film under certain hydrothermal synthesis conditions. 3: Pore-blocking method: This involves immersing the carrier in a synthetic mother liquor, and then creating a negative pressure through vacuum pumping to allow the mother liquor to enter the pores of the carrier. Under certain hydrothermal synthesis conditions, molecular sieve crystals grow within these pore channels. Since the molecular sieve crystals grow inside the carrier’s pores, the resulting molecular sieve membrane possesses improved mechanical strength and thermal stability. 4: Microwave heating method 5: Pulse laser deposition method 6: Electro-pulsed deposition method. I hope to discuss such technologies with everyone. Thank you for your participation! ! ! !