A composite material with the functions of terramycin detection and removal and a preparation method thereof

By preparing ZIF-8 composite material and loading fluorescein and Eu3+-doped carbon dots, the problem of difficult detection and removal of oxytetracycline in complex matrices was solved, achieving high selectivity and sensitivity in detection, and efficiently degrading oxytetracycline under ordinary light.

CN120605771BActive Publication Date: 2026-06-12HENAN POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HENAN POLYTECHNIC UNIV
Filing Date
2025-06-06
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing technologies struggle to detect and remove oxytetracycline in situ, especially in complex matrices such as water, soil, and food. Furthermore, traditional methods are costly, cumbersome, and cannot achieve portable detection and removal.

Method used

A ZIF-8 composite material was prepared by forming a cavity structure through acid etching, loading fluorescein and Eu3+-doped carbon dots (CDs-Eu3+) to form ZIF-8@LY/ZIF-8@CDs-Eu3+ material, which enables fluorescence detection and photocatalytic degradation of oxytetracycline.

Benefits of technology

It achieves highly selective, sensitive detection and effective removal of oxytetracycline, with a detection limit as low as 1.8 nM. It can accurately identify oxytetracycline in complex matrices and achieve efficient degradation under ordinary light.

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Abstract

The application discloses a composite material with double effects of terramycin detection and removal and a preparation method thereof, and belongs to the technical field of environmental remediation and drug residue treatment. 3+ The application first carries out acid etching on ZIF-8 to obtain ZIF-8 with a cavity structure; then injects fluorescein into the cavity of the ZIF-8 with the cavity structure, and then grows a ZIF-8 shell layer on the surface of the ZIF-8 with the cavity structure to in-situ load CDs-Eu 3+ The composite material has high selectivity and sensitivity to terramycin, can accurately identify target molecules in complex matrices (such as water, soil and food), has strong anti-interference property and low detection limit.
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