Irregular ternary conjugated polymer photocatalytic material as well as preparation method and application thereof

A technology of regular ternary copolymerization structure and conjugated polymer, which is applied in the field of non-regular ternary conjugated polymer photocatalytic materials and its preparation, can solve the problems of low utilization rate of visible light, high recombination rate of photogenerated electrons and holes, etc. Achieve the effect of improving photocatalytic performance, enhancing π-π interaction force and prolonging service life
CN114773580APending Publication Date: 2022-07-22TAIYUAN UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TAIYUAN UNIV OF TECH
Publication Date
2022-07-22

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Abstract

The invention belongs to the technical field of polymer materials for multifunctional photoelectric application. At present, existing polymers still have the problems of low visible light utilization rate, high recombination rate of photo-induced electrons and holes and the like. The invention provides an irregular ternary conjugated polymer photocatalytic material as well as a preparation method and application thereof, different pi bridging units are introduced into a basic framework of a polymer material in an irregular copolymerization manner by changing the types of monomers forming the polymer photocatalytic material and regulating and controlling the molar ratio of monomer feeding, and the irregular ternary conjugated polymer photocatalytic material is obtained. The energy levels of the highest occupied orbital and the lowest occupied orbital are regulated, the pi-pi interaction force between molecular chains is enhanced, the light absorption is widened and enhanced, and the charge transfer capability is improved, so that the photocatalytic performance is improved. The material has good thermal stability and matched energy level, the synthesis steps of the material are simple, and the material can be widely applied to the fields of photocatalysis, perovskite solar cells, organic field effect transistors, organic electroluminescent devices and organic photovoltaic solar cells.
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Description

technical field

[0001] The invention belongs to the technical field of polymer materials for multifunctional optoelectronic applications, in particular to a non-regular ternary conjugated polymer photocatalytic material and a preparation method and application thereof. Background technique

[0002] Energy is an indispensable material basis for human beings. With the rapid development of economy and technology, the environmental pollution and energy crisis caused by non-renewable fossil fuels have attracted global attention, and there is an urgent need for alternative green and clean energy. Using solar energy to catalyze hydrogen evolution is a simple and effective method. Hydrogen energy has high energy density, is non-polluting, and can be stored. It is expected to replace traditional fossil energy (J.Colloid Interface Sci. 2019, 533, 636-648).

[0003] The activity of photocatalytic hydrogen evolution depends on the selection of semiconductor photocatalyst materials. Orga...

Claims

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