Preparation method of catalyst with ferric oxide nanosheet-coated nanometer carbon fibers

Abstract

The invention discloses a composite catalyst with ferric oxide nanosheet-coated nanometer carbon fibers, and a preparation method thereof. The preparation method comprises the following steps: preparing ferric nitrate-containing nanometer polyacrylonitrile fibers by electrostatic spinning, drying, pre-oxidizing and carbonizing the fibers to prepare polyacrylonitrile-based carbon fibers with iron oxide seeds, putting the carbon fibers in an iron-containing salt solution, treating the solution at 140 DEG C for a certain time by a hydrothermal method, then washing and drying to obtain the composite catalyst with scaly ferric oxide nanosheet-coated nanometer carbon fibers. According to the invention, iron oxide-containing nanometer carbon fibers are used as carriers of scaly ferric oxide, and the prepared composite catalyst has better catalytic activity than traditional ferric oxide, has good stability, and has wide application prospects in aspects of photocatalytic degradation of organic pollutants in visible light or natural sun light, hydrogen production by photocatalytic cracking of water, photocatalytic synthetic reactions, and the like.

Description

technical field [0001] The invention belongs to the field of photocatalysis in applied chemistry, and in particular relates to a composite catalyst of ferric oxide nanosheets wrapped nano-carbon fibers and a preparation method thereof. Background technique [0002] The energy crisis and environmental pollution have become major global issues in the 21st century. The development of new energy solutions that are environmentally friendly or have the least impact on the environment will be crucial to maintaining sustainable economic development and maintaining an environment suitable for human habitation. In this regard, using renewable materials such as water and biomass as raw materials, using solar photocatalytic water decomposition, carbon dioxide reduction, and pollutant degradation technology is one of the ideal ways to fundamentally solve the problem of energy and environmental pollution. Economic and social benefits, but also in line with the urgent needs of my country's ...

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Problems solved by technology

[0005] However, at present, the above-mentioned technologies are still in the development and research stage, how to mature and efficiently convert Fe 2 o 3 Coupling catalysts with carbon nanofibers to prepare composite catalysts to obtain efficient and stable composite catalysts is still the focus and difficulty in today's industrial production

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