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- W4223995269 abstract "Heavy metal ions produced by industrial activity have been a serious environmental problem, and their detection is critical for treatment of the heavy metal pollution. Among the variable heavy metal detection methods, fluorescent indicator methods have attracted wide attention due to the advantage of the convenience and nondestructive detection process. Carbon quantum dots have great application in this respect. In this study, nitrogen and sulfur doped fluorescent carbon quantum dots (N,S-CDs) were prepared based on wool keratin using a hydrothermal method, of which the morphology, chemical composition and optical properties were characterized. The prepared N,S-CDs were spherical nanoparticles with a diameter of 2-6 nm, showing wide fluorescence excitation and emission wavelength range and considerable quantum yield, and have sensitive response to Cr6+ and Fe3+. This study reveals a novel cost-effective and convenient synthetic route of green carbon quantum dots through naturally sourced materials, demonstrates the application potential of the wool keratin-based N,S-CDs in rapid detection of heavy metal, and opens up a new path for functional utilization of waste wool keratin." @default.
- W4223995269 created "2022-04-19" @default.
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- W4223995269 date "2022-01-01" @default.
- W4223995269 modified "2023-10-05" @default.
- W4223995269 title "Green fluorescent nanomaterials for rapid detection of chromium and iron ions: wool keratin-based carbon quantum dots" @default.
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- W4223995269 doi "https://doi.org/10.1039/d2ra00529h" @default.
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