Fluorescence color tuning of dual-emission carbon quantum dots produced from biomass and their use in Fe3+ and Cu2+ detection

IF 5.7 3区材料科学 Q2 Materials Science

New Carbon Materials Pub Date : 2024-12-01 DOI:10.1016/S1872-5805(24)60869-3

Jia-jia Xue, Mei-heng Gan, Yong-gen Lu, Qi-lin Wu

引用次数: 0

Abstract

Using simple and eco-friendly ethanol solvothermal treatment, dual-emission biomass carbon quantum dots (D-BCQDs) were synthesized from biomass viburnum awabuki leaves. Under excitation with 413 nm wavelength light two emission peaks appeared at 490 and 675 nm and the dots could be tuned to emit crimson, red, purplish red, purple and blue-gray fluorescence by changing the solvothermal temperature from 140 °C to 160, 180, 200 and 240 °C, respectively. XPS and FTIR characterization indicated that the fluorescence color was mainly determined by surface oxidation defects, elemental nitrogen and sp²-C/sp³-C hybridized structural domains. The D-BCQDs could not only detect Fe³⁺ or Cu²⁺, but also quantify the concentration ratio of Fe³⁺ to Cu²⁺ in a solution containing both, demonstrating their potential applications in the simultaneous detection of Fe³⁺ and Cu²⁺ ions.

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来源期刊

New Carbon Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.10

自引率

8.80%

发文量

3245

审稿时长

5.5 months

期刊介绍： New Carbon Materials is a scholarly journal that publishes original research papers focusing on the physics, chemistry, and technology of organic substances that serve as precursors for creating carbonaceous solids with aromatic or tetrahedral bonding. The scope of materials covered by the journal extends from diamond and graphite to a variety of forms including chars, semicokes, mesophase substances, carbons, carbon fibers, carbynes, fullerenes, and carbon nanotubes. The journal's objective is to showcase the latest research findings and advancements in the areas of formation, structure, properties, behaviors, and technological applications of carbon materials. Additionally, the journal includes papers on the secondary production of new carbon and composite materials, such as carbon-carbon composites, derived from the aforementioned carbons. Research papers on organic substances will be considered for publication only if they have a direct relevance to the resulting carbon materials.