Flexible manganese oxide nano fibrous membrane and preparation method thereof

Abstract

The invention relates to a flexible manganese oxide nano fibrous membrane and a preparation method thereof. The preparation method comprises the following steps: dissolving a manganese source a non-manganese metal salt in a solvent, sequentially adding a coupling agent and a surfactant, and uniformly mixing to obtain a uniform and stable precursor solution with a three-dimensional interpenetrating network structure; delivering the precursor solution into a spinneret of an electrostatic spinning device, and connecting the spinneret to a high-voltage power supply to perform electrostatic spinning, thereby obtaining a precursor nano fibrous membrane; and putting the precursor nano fibrous membrane into a box-type resistance furnace, and calcining in an air atmosphere to finally obtain the flexible manganese oxide nano fibrous membrane. The method has the advantages of simple preparation technique and low cost; the obtained manganese oxide nano fibrous membrane has the advantages of favorable flexibility, environment friendliness, low price, higher electrochemical catalytic activity and the like, and thus, can be made into oxidizers, catalysts, adsorbents and other products; and the manganese oxide nano fibrous membrane has wide application prospects in the field of chemical industry.

Description

technical field [0001] The invention belongs to the technical field of new materials, and relates to a flexible manganese oxide nanofiber membrane material and a preparation method thereof, in particular to a flexible manganese oxide nanofiber film with a precursor solution having an interpenetrating three-dimensional network structure molecular chain as a spinning solution. Fibrous membrane material and its preparation method. Background technique [0002] As an important transition metal oxide material, manganese oxide has the advantages of environmental friendliness, low price, and high electrochemical catalytic activity. , Enzyme carriers in biosensors and semiconductor materials have shown good application prospects. With the development of electronic technology and biotechnology in recent years, manganese oxide nanofiber materials have more and more important application requirements in the field of new functional materials, and show good application prospects; the pr...

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Problems solved by technology

However, due to the large grain size of the manganese oxide nanofiber material prepared by the electrospinning technology reported in the above papers, the manganese oxide fiber material generally has the defects of high brittleness and easy fracture, and it is impossible to obtain a flexible fiber film. In the process of manganese fiber preparation, high molecular polymer needs to be added, and the precursor solution needs to be aged. Not only the preparation process is complicated, but also the manganese content in the precursor fiber is low, resulting in low fiber yield after calcination, and it is difficult to realize manganese oxide nanofibers. industrial production of

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