Preparation method of three-dimensional porous film catalyst

• Main Authors: TAI JIE, MAO YIPENG, LI XIN, ZHUO QIQI
• Format: Patent
• Language: Chinese; English
• Published: 03.01.2020
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a preparation method of a three-dimensional porous film catalyst. The preparation method comprises the following steps: ultrasonically dispersing and uniformly mixing graphene oxide, carbon spheres and metal oxide nanoparticles according to the proportion; preparing a graphene oxide/carbon sphere/metal hydroxide composite film through suction filtration and annealing at hightemperature to obtain a graphene/carbon sphere/metal oxide composite film; and putting the graphene/carbon sphere/metal oxide composite film into an ammonia borane aqueous solution to foam to finallyobtain a graphene/carbon sphere/metal oxide composite film with a three-dimensional porous structure. A film block catalyst prepared by the method can be applied in the fields of sewage treatment, liquid phase catalysis and the like; the film catalyst can effectively avoid secondary pollution caused by that the catalyst is remained in the solution; and the composite film can be reused and the usecost of the catalyst is re