Preparation method of flexible polyimide film-based bismuth tungstate-bismuth iodide sulfide composite material

By preparing tungsten-tungstenate-iodine sulfurized composite materials on the base of the flexible polytamide thin film, the problem of high energy consumption, high cost, and poor rigid base resistance in the existing technology have been solved. Preparation of materials with high ratio and improvement of photocatalytic performance.

CN116574295BActive Publication Date: 2025-01-28UNIV OF JINAN
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310457426.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-04-26
Publication Date
2025-01-28
Estimated Expiration
2043-04-26

AI Technical Summary

Technical Problem

The existing preparation methods of bismuth tungstate and bismuth sulfide have problems such as high energy consumption, harsh experimental conditions, high cost and poor bending ability of rigid substrates, which limit their application in flexible electronic devices.

Method used

Using flexible polytamide film as the base, prepare tungsten acid-iodine sulfurized composite materials through water thermal law, and uses flexible polytamide thin film substrate-like tungsten acid pyrine as a template to synthesize a high ratio and rich pores Composite materials.

Benefits of technology

The tungsten-iodine sulfide composite materials with preparation of high-ratio, wide light response, and improved photocatalytic performance are achieved, simplifying the preparation process, reducing costs, and improving the flexibility and heat resistance of materials.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure FT_1
    Figure FT_1
  • Figure FT_2
    Figure FT_2
Patent Text Reader

Abstract

The present invention introduces a method for preparing a flexible polyimide film-based bismuth tungstate-bismuth iodide composite material, which belongs to the field of inorganic material preparation. The preparation steps of this method mainly include: preparation of a flexible polyimide film-based flaky bismuth tungstate skeleton - preparation of a bismuth tungstate-bismuth iodide composite material using a flexible polyimide film-based flaky bismuth tungstate skeleton as a template. The present invention selects a polyimide film with flexibility, excellent heat resistance and chemical corrosion resistance as a substrate, and the prepared bismuth tungstate-bismuth iodide sulfide composite material has the advantages of large specific surface area, large absorption coefficient, simple preparation method, high cost-effectiveness, etc., which makes it have great application prospects in the fields of flexible sensors, wearable photovoltaic devices, etc.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Bismuth tungstate photocatalytic films and preparation method therefor

    CN104923214A

  • Iron porphyrin-flaky bismuth tungstate two-dimensional composite material and preparation method thereof

    CN109289929A