A gas-liquid-solid three-phase interface electric field synergistic photocatalytic enhanced organic pollutant degradation device and an organic pollutant degradation method

By constructing a gas-liquid-solid three-phase interface in an atomized microdroplet system and utilizing a built-in electric field to regulate the semiconductor band structure, the directional migration of electrons and holes is promoted to generate hydroxyl radicals. This solves the problems of rapid carrier recombination and low interfacial electron transfer efficiency in photocatalytic reactions, and achieves efficient degradation of organic pollutants.

CN122127003APending Publication Date: 2026-06-02JIANGHAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGHAN UNIVERSITY
Filing Date
2026-03-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing photocatalytic technologies, photogenerated electron-hole pairs easily recombine, resulting in low interfacial electron transfer efficiency and insufficient charge carrier quantity, which limits the degradation efficiency and engineering applications of organic pollutants.

Method used

In an atomized microdroplet system, a gas-liquid-solid three-phase interface is constructed. By controlling the semiconductor band structure through a built-in electric field, the directional migration of electrons and holes is promoted, generating hydroxyl radicals, which synergistically enhance the degradation of organic pollutants through photocatalytic reactions.

Benefits of technology

It improves the efficiency of photocatalytic degradation of organic pollutants, reduces system complexity, and ensures continuous degradation effect under different light conditions.

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Abstract

This invention discloses a gas-liquid-solid three-phase interface electric field synergistic photocatalytic enhancement device and method for organic pollutant degradation. The device includes an upper chamber with an inverted frustum structure, a lower chamber connected to the upper chamber, and a middle chamber disposed between the upper and lower chambers. The upper chamber houses a light source assembly, an ultrasonic atomizer, and a photovoltaic panel. The lower chamber houses a cyclic timing relay and an energy storage device. The ultrasonic atomizer and the cyclic timing relay are connected in series to form a cyclic atomization module. The middle chamber houses a levitation device. This invention eliminates the need for an external electric field device or complex material modification of the photocatalyst. By forming a strong built-in electric field and increasing the contact area under multiphase interface conditions, it modulates the semiconductor band structure, promotes the directional migration of electrons and holes, accelerates the generation of hydroxyl radicals, synergistically enhances the photocatalytic reaction, and improves the degradation efficiency of organic pollutants.
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