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PROCESS FOR PRODUCING A FENTON-TYPE NANOCATALYST OF IRON OXIDE NANOPARTICLES SUPPORTED IN POROUS MATERIALS FOR THE OXIDATION OF POLLUTANTS PRESENT IN WATER.
PROCESS FOR PRODUCING A FENTON-TYPE NANOCATALYST OF IRON OXIDE NANOPARTICLES SUPPORTED IN POROUS MATERIALS FOR THE OXIDATION OF POLLUTANTS PRESENT IN WATER.
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机译:多孔材料中氧化铁纳米粒子的Fenton型纳米催化剂的制备方法,用于氧化水中的污染物。
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摘要
The present invention refers to a novel method for producing a Fenton-type catalyst of iron oxide (FexOy) nanoparticles supported in materials with different type of porosity (activated carbon, commercial zeolite (ZSM5), B-alumina and titanium). The synthesis method of the catalyst of supported iron oxide nanoparticles (Fenton-type nanocatalyst) comprises three steps: incipient impregnation, particle dispersion and calcination or thermal treatment. The incipient impregnation is performed with a solution of ferric nitrate and isopropyl alcohol (1-4.8% m/m Fe), which acts as a solvent and chelating agent for promoting the particle dispersion. Ultrasound is subsequently applied for 10-60 min (preferably 30 min) for increasing the dispersion. Finally, a thermal treatment is performed in a range of from about 82°C to about 232°C for 27-213 min. by continuously supplying an inert gas.
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机译:本发明涉及一种新颖的方法,该方法用于制备氧化铁(FexOy)纳米粒子的芬顿型催化剂,所述纳米粒子负载在具有不同类型的孔隙率的材料(活性炭,商业沸石(ZSM5),B-氧化铝和钛)中。负载型氧化铁纳米粒子的催化剂的合成方法(芬顿型纳米催化剂)包括三个步骤:初次浸渍,粒子分散和煅烧或热处理。初始浸渍用硝酸铁和异丙醇(1-4.8%m / m Fe)的溶液进行,该溶液用作促进颗粒分散的溶剂和螯合剂。随后施加超声10-60分钟(优选30分钟)以增加分散。最后,在约82℃至约232℃的范围内进行热处理27-213分钟。通过连续供应惰性气体。
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