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- W4280638772 abstract "Green, blue and pink fluorescent carbon dots (o/m/p-CDs) were prepared by one-step hydrothermal method with three isomers (o/m/p) of phenylenediamine as nitrogen and carbon sources and ethanol as solvent. The obtained carbon dots exhibited different luminescence behaviors, and the luminescence behaviors were affected by solvent and pH. More interestingly, m-CDs exhibited obvious discoloration behavior under different pH conditions and had excellent linear relationship under acidic and basic conditions, respectively. Furthermore, we combined m-CDs with test paper, PVA film, and cotton fabric, respectively, to prepare composites for visual pH detection. The as-prepared composite material has excellent visual detection effect for a small amount of test sample (<5 μL) in the fine pH range (0.5 unit), and could be applied to trace pH detection. • Green, red and blue fluorescent CDs were prepared via hydrothermal method with ethanol and o/m/p-phenylenediamine. • Mechanisms of lyochromic and pH-induced discoloration were explored. • The o/m/p-CDs were combined with test strips, PVA films and cotton fabrics for fine pH (0.5 units) detection." @default.
- W4280638772 created "2022-05-22" @default.
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- W4280638772 date "2022-09-01" @default.
- W4280638772 modified "2023-10-14" @default.
- W4280638772 title "pH and solvent induced discoloration behavior of multicolor fluorescent carbon dots" @default.
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- W4280638772 doi "https://doi.org/10.1016/j.colsurfa.2022.129261" @default.
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