层状双氢氧化物修饰氰基氮化碳复合材料、制备方法及水污染治理方法

By preparing layered double hydroxide-modified cyanocarbon nitride composite materials, a piezoelectric-photocoupled catalyst was constructed, which solved the problem of low efficiency of photocatalysts in treating low-concentration organic pollutants and achieved efficient and economical degradation of water pollutants.

CN121513938BActive Publication Date: 2026-07-17湖南工商大学
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
湖南工商大学
Filing Date
2025-12-02
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing photocatalysts suffer from insufficient treatment efficiency when treating low-concentration, highly toxic organic pollutants due to the easy recombination of photogenerated electron-hole pairs and low quantum efficiency. Traditional water treatment technologies struggle to completely remove antibiotic-like substances.

Method used

Layered double hydroxide-modified cyano-carbon nitride composites were prepared by hydrothermal method to construct a piezoelectric-optical coupled catalyst. The synergistic effect of ultrasound and visible light was used to promote carrier separation and migration, forming a tight heterojunction interface.

Benefits of technology

It significantly improves the degradation efficiency of organic pollutants, especially showing high efficiency in the degradation of low ionization potential pollutants such as norfloxacin. The process is simple, low-cost, and suitable for the treatment of a variety of water pollutants.

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Abstract

本发明提供了一种层状双氢氧化物修饰氰基氮化碳复合材料、制备方法及水污染治理方法;本发明通过一步水热法将氰基氮化碳与铁镍层状双氢氧化物复合,构建具有压电响应和可见光响应的异质结构;并且,所述氰基氮化碳具有纳米片形貌,所述铁镍层状双氢氧化物具有纳米花形貌。在超声波与可见光共同作用下,本发明的复合材料对污水中诺氟沙星等低电离势污染物表现出优异的降解性能,其降解速率常数分别达到单一CCN的2.76倍和单一Fe‑Ni LDH的8.3倍。本发明工艺简便、成本低、适应性强,适用于多种水体污染物的高效去除,在水污染治理方面具有良好的应用前景。
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Citation Information

Patent Citations

  • Preparation method of photoelectrochemical ofloxacin aptamer sensor based on hydrotalcite / graphite-like carbon nitride heterojunction

    CN111912887A

  • K / O co-doped and cyano-grafted graphite phase carbon nitride material as well as preparation method and application thereof

    CN119565655A