Preparation of carbon quantum dots-embedded silica microspheres/terbium composite for dual-ratiometric fluorescence detection of MnO 4 ⁻ ions

Key Points

• The research aims to create a highly sensitive fluorescent probe for detecting permanganate ions using a novel composite material.
• Fabrication of N-doped carbon dots-embedded silica microspheres/terbium composite
• Evaluation of fluorescence properties
• Testing selectivity and sensitivity against permanganate ions
• The composite demonstrated significant fluorescence response to permanganate ions
• Achieved low detection limits for MnO4– ions
• The dual-ratiometric approach enhanced detection accuracy