A rhodamine 6G derivative fluorescent probe material, a preparation method thereof and application of the fluorescent probe material in detecting carbon dioxide

By preparing and applying rhodamine 6G derivative fluorescent probe materials, the problems of insufficient sensitivity and stability of existing optical carbon dioxide gas sensors have been solved, realizing efficient and low-cost carbon dioxide concentration detection, which is suitable for environmental monitoring and water quality monitoring.

CN122404352APending Publication Date: 2026-07-17ZHEJIANG UNIV OF TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV OF TECH
Filing Date
2026-03-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing optical carbon dioxide gas sensors lack sufficient sensitivity and stability in detecting carbon dioxide concentration, and their fabrication methods are complex and costly, making it difficult to meet the requirements for high-precision and high-efficiency detection.

Method used

A fluorescent probe based on a Rhodamine 6G derivative was synthesized by heating and reflux reaction. The change in fluorescence intensity under ultraviolet light excitation was used to detect carbon dioxide concentration, and a standard curve was plotted using a fluorescence spectrophotometer for detection.

Benefits of technology

It achieves highly sensitive, stable, and interference-resistant carbon dioxide detection with a detection limit of 19.59 ppm. The preparation method is simple, low-cost, low-pollution, and easy to operate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122404352A_ABST
    Figure CN122404352A_ABST
Patent Text Reader

Abstract

本发明公开了一种罗丹明6G衍生物的荧光探针材料及其制备方法和检测二氧化碳的应用,所述罗丹明6G衍生物的制备方法包括:将罗丹明6G和水合肼混合于乙醇溶液中,并在室温下搅拌,然后将混合物加热回流,当溶液由猩红色变为澄清的橙色时,反应完毕,冷却至室温,减压旋蒸除去溶剂,抽滤得浅橙色固体,洗涤即得产物。本发明的荧光探针在348 nm的紫外光激发下,呈现出波长为548 nm的微弱的荧光发射,通入二氧化碳后,548 nm的荧光增强,实现荧光检测,检测限低至19.59 ppm。本发明的荧光探针可以快速地识别气体环境中的二氧化碳,同时具备稳定性强、操作简单、成本低的优点。
Need to check novelty before this filing date? Find Prior Art