| Titanium silicalite-1 (TS-1) film possesses unique performance of zeolite films, By using zeolite film in the membrane reactors, the reaction and separation processes are efficiently integrated, the reaction rate is improved and the reaction is greatly intensified. It can also be used in the optical devices if made to be transparent material. On the other hand, atom cluster compounds and supramolecular compounds are assembled using the zeolite film as matrix, which are promising candidates in the fields of photoelectron and galvano-chemistry as new optical, electrochemical, and photoelectronic materials. It plays a positive role in the regioselective oxidation reaction of organic compounds, with H2O2 as oxidant. The reaction is environmentally friendly as H2O2 is transformed into H2O. therefore, the synthesis and applications of TS-1 films have attracted worldwide attention.In this dissertation, the b-oriented TS-1 film was synthesized on the porous Al2O3 substrate by the induction of a chitosan layer, and the formation mechanism was further studied. The continuous TS-1 film was also fabricated by using the inorganic compound TiCl3 as titanium source, and by using the microwave method. Utilizing the surface property of substrates, TS-1 films were synthesized on theα-Al2O3, chitosan-modifiedα-Al2O3, ZrO2-modifiedα-Al2O3 and porous stainless steel substrates. The influence of the concentration of TPAOH and the synthesis temperature on the structure of the synthesized film was studied When the chitosan-modifiedα-Al2O3 was used as the substrate, the continuous b-oriented TS-1 film was obtained under lower TPAOH concentration and the crystallization temperature of 180°C.A layer of gel was formed on the surface of the chitosan film by adsorbing TPA and TS-1 precursors simultaneously, which was proved by AFM and contact angle measurements, acid-base titration, EPMA analysis and EDX analysis. In light of this result and the SEM images of the TS-1 films, we proposed a new film formation mechanism. That is, firstly, a gel layer of TPA and TS-1 precursors is formed on the surface of chitosan film. Then, nucleation occurs in the interior absorbent layer near the chitosan film, the nuclei grow to be small crystals, and the small crystals are b-oriented. In the fourth stage, the crystals grow larger, and the first layer becomes continuous. In the fifth stage, new nucleation occurs on the crystals in the first layer, and then, by the induction of the crystals in the first layer, the second layer is formedThe TS-1 film was fabricated with inorganic compound TiCl3 as titanium source. The film was investigated by means of scanning electron microscope (SEM), X-ray diffraction (XRD), FI-IR and UV-Vis spectra, and EDX, which demonstrated that the anatase was avoided, the content of titanium element in the TS-1 film was lower than that in the synthesis solution, the lost titanium element existed in the solution, and no anatase was formed.By using the microwave heating method, the second growth-microwave heating method and the in situ aging-microwave heating method, the TS-1 zeolite films were fabricated. The films were characterized by SEM, XRD, FI-IR and UV-Vis spectra, and EDX. The results indicated that the TS-1 film can not be obtained by the microwave heating method, the film was not continuous by the second growth-microwave heating method, new nuclei appeared, in the process of nucleation, and the crystals in the film were not uniform. By using the in situ aging-microwave heating method, the film was continuous with small and uniform crystals.The synthesized TS-1 films were applied in the oxyfunctionalization of n-hexane. TS-1 film synthesied with TiCl3 as titanium or by using the in situ aging-microwave heating method displays weak catalytic performance due to the low titanium content in the film. When the b-oriented TS-1 film was used, the reactivity and selectivity were both satisfactory.
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