一种五氧化二铌 / 石墨烯复合光催化剂及其制备方法和在降解环丙沙星中的应用

By preparing a niobium pentoxide/graphene composite photocatalyst, the problem of low efficiency in visible light degradation of ciprofloxacin in existing technologies was solved, achieving efficient and stable degradation of ciprofloxacin and expanding the application of niobium-based materials in the treatment of antibiotic wastewater.

CN116196914BActive Publication Date: 2026-07-17JIANGNAN UNIV +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGNAN UNIV
Filing Date
2023-02-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing photocatalytic technologies are difficult to efficiently degrade ciprofloxacin under visible light conditions, and the existing methods for preparing Nb2O5 nanomaterials are cumbersome and require harsh conditions, thus failing to be effectively applied to the degradation of ciprofloxacin.

Method used

A niobium pentoxide/graphene composite photocatalyst was prepared by combining glutamic acid-functionalized graphene quantum dots with graphene oxide, and then combining them with niobium pentoxide nanoparticles to form a composite material with excellent specific surface area and photoelectric properties, which can be used for the degradation of ciprofloxacin.

Benefits of technology

The method achieves efficient degradation of high-concentration ciprofloxacin solution under visible light conditions, with a degradation rate of up to 97.2%. The preparation method is simple and the catalyst has good stability.

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Abstract

本发明公开了一种五氧化二铌 / 石墨烯复合光催化剂及其制备方法和在降解环丙沙星中的应用,属于光催化技术领域。该制备方法为制备谷氨酸功能化石墨烯量子点,然后将谷氨酸功能化石墨烯量子点与氧化石墨烯复合;再与五氧化二铌纳米粒子复合,制得五氧化二铌 / 石墨烯复合光催化剂。该五氧化二铌 / 石墨烯复合光催化剂在无氧源,可见光,滤除紫外光等条件下对环丙沙星起到优良的光催化氧化作用,制备方法操作简单,催化剂表现出良好的光活性,并且循环稳定性保持良好。
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