Newly developed transparent materials with nano-structured micorporous surface

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The preparation of molecular sieve films has attracted considerable interest due to their potentials uses as membranes, membrane-reactors, components of optical and electrical devices, and selective sensors. Despite considerable advances in synthetic procedures, the challenge of preparing continuous, highly oriented, sub-micrometer thickness molecular sieve films remains to be met. A simple and general processing scheme particularly promising to meet this goal consists of using suspensions of small size zeolite crystals to prepare precursor particle layers, followed by solidification of these particles to a continuous film. In this study, new techniques for preparing transparent zeolite thin films have been reported.