Composite catalyst and preparation method thereof

• Main Authors: GAO AIFANG, ZHAO ZHIRUI, ZHU ZHENYA, SUN JINGJING, WAN JINGMIN, LI AIGUO, FANG XIAOFENG, MIAO ZHIJIA, YUN YUPAN, WEN XUEYOU, LI JING, JIAO ZHEN
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a composite catalyst and a preparation method thereof. PdC12 and CuCl2.2H2O are selected as precursors of catalyst active ingredients Pd and Cu; a catalyst carrier is preparedby mixing and processing two or more than two materials according to a certain proportion; the catalyst carrier materials include modified kieselguhr, SiO2, MnO2 and graphene; composite carriers including modified kieselguhr-kaolin, modified kieselguhr-SiO2 and modified kieselguhr-MnO2 are also included. The invention also discloses the preparation method of the composite catalyst. The composite catalyst is a supported catalyst. Active ingredients supported by the catalyst consist of a primary catalyst and a cocatalyst. For the catalyst active ingredients, under the catalysis effect of the catalyst, nitrate radicals in the water body react with reducing iron simple substances to be converted into N2, so that the goal of effective denitrification is achieved. 本发明公开了一种复合催化剂及其制备方法，选取PdC1、CuCl⋅2HO作为催化剂活性组分Pd、Cu的前体物，催化