TH6495C3 - Polyoxomethalate Preparation Process (Polyoxometalate) on a titania support for use as a catalyst with hydrothermal methods. (hydrothermal) - Google Patents

Abstract

DC60 This invention involves the preparation of polyoxomethalate catalysts. (polyoxometalate) on the support of titania (titania) by hydrothermal method. (hydrothermal), which catalyst The polyoxomethalate on the resulting titania supports is a nanometer titanate tube with a greater surface area for the reaction and the ability to be catalyzed. The degradation of methylene blue dye was better than normal nanometer titanate tubes. It can also lead to It can be applied to accelerate the decomposition of various organic substances in the treatment of industrial wastewater. Efficiency as well The invention involved the preparation of polyoxomethalate catalysts. (polyoxometalate) on the support of titania (titania) by hydrothermal method. (hydrothermal), which catalyst The polyoxomethalate on the resulting titania supports is a nanometer titanate tube with a greater surface area for the reaction and the ability to be catalyzed. Degradation of methylene dyes The blue (methylene blue) was better than normal nanometer titanate pipes. It can also lead to It can be applied to accelerate the decomposition of various organic substances in the treatment of industrial wastewater. Efficiency as well

Claims (7)

1. Process for preparing polyoxomethalate catalyst. (polyoxometalate) on the support of titania (titania) consists of the following steps: a) mix the polyoxometalate And titanium dioxide powder (titanium dioxide) with the ratio Between polyoxomethalate and titanium dioxide equal to 0.5-2.0 by 0.5-1.0 by weight to weight b) pour the mixture obtained from clause a) into deionized water with the ratio of Such ingredients Connect 1-4 by 10 deionized water by weight per volume, then mix all ingredients together with a stirrer. C) Add a 0-10 molar sodium hydroxide solution, volume 40 ml, with the ratio of solution B) to the sodium hydroxide solution. Oxides are 1-1.5 by 4 by volume by volume. The most suitable ratio is 1 by 4 by volume by volume. Then all the ingredients are mixed together with a blender to stir the solution. Until homogeneous Pour the prepared mixed solution into a pressure cooker. D) Put into an oven with a temperature of 100 - 200 degrees Celsius and 24 - 120 hours after the time is left to cool at room temperature. 25 to 30 degrees Celsius e) Take all the ingredients to separate the sediment. Then the sediment washed with ion pras water Until the rinsing water has a pH of 7, then the sludge is then dried at 60-90 degrees Cias for 10-15 hours. 2. Process for preparing the catalyst According to claim 1, where the ratio between polyoxo The optimum methalate to titanium dioxide powder is 1.0 by 1.0 by wt. 3. Process for preparing the catalyst According to claim 1, where the ratio of the mixture between poly Oxomelate and Titanium Dioxide Powder The optimum deionized water is 1 by 10 by weight per volume. 4. Process for preparing the catalyst According to claim 1, where the optimum sodium hydroxide concentration is 10 molar. 5. Process for preparing the catalyst According to claim 1, where the ratio between the Sodium hydroxide solution The most suitable is 1 to 4 by volume by volume. 6. Process for preparing the catalyst According to claim 1, where the optimum condition for the mixing cycle is at 150 ° C for 72 hours. 7. Process for preparing the catalyst According to claim 1, where appropriate conditions for the sludge drying The highest is at 70 degrees Celsius for 12 hours.