Study On The Catalytic Performance Of Elite Nano - Tube Supported Metal Oxide And Its Catalytic Performance

Halloysite nanotubes (HNTs) is a kind of natural aluminum silicate nanotubes with hollow structure,low price.It is right suitable for nano reactor for large space in HNTs’lumen and HNTs’high aspect ratio. It is also suitable for catalyst carrier because of its relatively large surface area and silicon aluminum frame structure.On the structure characteristics of as the research object, we prepared loaded type of nano-copper oxide catalyst and nano-zinc oxide catalyst using HNTs’lumen as template by dropping the filling method and prepared loaded type of nano-titanium dioxide catalyst using the surface of HNTs by reactor gas phase deposition method using the kettle vapor, meanwhile, studying its catalytic performance respectively.Study on the structure and physical properties of HNTs by XRD, FT-IR, TGA, SEM, TEM, BET and other characterization methods, result shows that the domestic HNTs which we used has a length of 200-500 nm, outer diameter of 50～70 nm, inner diameter of 15～25 nm,the specific surface area of 33.8m2/g. The tubular structure of HNTs remains intact after calcining 3 hours under 800 ℃, showing that HNTs has good thermal stability. The tubular structure of HNTs is still intact by the water solution whose pH is 1 or 13 dealing under 100 ℃, showing that HNTs has good acid and alkali resistance.With the hollow tublar structure of HNTs as template, preparing the nano-copper oxide supported catalys(CuO/HNTs) and nitrogen-doped-zinc oxide supported catalyst (N-doped-ZnO/HNTs) in HNTs’lumen by the add filling method. Analysis the CuO/HNTs and N-doped-ZnO/HNTs by XRD, FI-IR, Uv-vis, SEM, TEM, EDX, showing that the nanometer copper oxide nano particles, Zinc Oxide successful load to HNTs in the lumen, and the amount of nitrogen doped N-doped-ZnO/HNTs is 1.2%. Study on the catalytic performance of CuO/HNTs ring by hexyl ketone in reaction to 2-ketone of cyclohexene. The result shows that the conversion rate of CuO/HNTs is above 99%, selective is 98%. Study on the photocatalytic properties of N-doped-ZnO/HNTs under simulated sunlight, result shows that the methyl orange degradation rate of N-doped-ZnO/HNTs was 70% after illumination of 120 min.We prepared the N-doped-TiO2/HNTs using the HNTs as a template by the vapor deposition method that we invented. Then analysis the N-doped-Ti02/HNTs by the characteristic method of XRD, FI-IR, Uv-vis, SEM, TEM, EDX. Study on its photocatalytic performance by photocatalytic degradation of methyl orange and phenol under simulated solar light. The result showed that the nitrogen content of the N-doped-TiO2/HNTs which prepared by the different way is 2.3%、4.1%, the removal rate of methyl orange is 8.55%、9.82%, the removal rate of phenol is 40.38%、74.42%, respectively.