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@article{197877,
        author = {RITU NAIN and SUSHIL KUMAR and SHALINI KAUSHIK and DEEPAK ROHILLA and MANISH KUMAR},
        title = {Green Synthesis of Copper-doped Carbon Dots from Ziziphus mauritiana leaves},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {6819-6825},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=197877},
        abstract = {The carbon dots display adjustable physicochemical attributes and visual qualities. They have garnered significant notice due to their environmentally sustainable strategy. The carbon dots exhibit tunable physicochemical characteristics and optical properties. They have gained considerable attention because of environmentally friendly approach. In this study, we described a simple biogenic procedure for synthesizing Cu-doped carbon dots (Cu-CDs) using CuCl2•2H2O and dried Ber (Ziziphus mauritiana) leaves as a renewable, nitrogen-rich carbon precursor. The synthesis uses the leaf's inherent biomolecules to aid in copper ion chelation and consistent doping during carbonization. Photoluminescence, UV-visible spectra, Fourier-transform infrared spectroscopy (FT-IR), Energy-dispersive X-ray Spectroscopy (EDX), Dynamic Light Scattering (DLS), and Field Emission Scanning Electron Microscopy (FESEM) were used to analyze the manufactured CDs. Characterization revealed the synthesis of amorphous, quasi-spherical nanoparticles with oxygen-rich surface functional groups and effective copper inclusion. The Cu-CDs exhibited robust excitation-dependent photoluminescence, generating bright blue fluorescence (maximum emission at 450 nm) under 360 nm excitation, with doping considerably increasing the quantum yield. This study emphasizes the potential of Ziziphus mauritiana biomass for eco-friendly nanomaterial manufacturing by demonstrating how copper doping tailors the photophysical and catalytic properties of CDs, making them promising for environmental sensing and bioanalytical applications.},
        keywords = {Carbon dots, Copper, Ziziphus mauritiana leaves},
        month = {April},
        }