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- W2892741009 abstract "Abstract Hexavalent chromium [Cr(VI)] is a carcinogenic and toxic pollutant and has brought severe environmental risks. Therefore, detection and removal of chromium ions with sensitive and economic materials are highly desirable. In this work, we develop a facile one-step synthesis of carbon dots (CDs) embedded zincone microspheres (CDs/zincone), which can act as low-cost and highly selective sensors for Cr(VI) based on the inner filter effect (IFE). A wide concentration linear range of dichromate ions (Cr2O72–) from 1 to 1000 μM can be detected by a small dose of the powders, and the detection process can be accomplished within 150 s. In addition, the CDs/zincone can also demonstrate efficient Cr2O72– removal with an uptake capacity of 47.5 mg/g. The in situ hydrolysis of zincone is shown to play a key role in the sensing and uptake of Cr2O72–. This CDs/zincone composite is the first bifunctional zincone material reported for both detection and removal of Cr2O72–. Moreover, hexamethylenetetramine (HMTA) is revealed as a new source for CDs in our system. This novel hybrid CDs/zincone material, which can be easily obtained by environmentally friendly synthesis, has potential applications for Cr(VI) detection and water treatment." @default.
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- W2892741009 date "2019-01-01" @default.
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- W2892741009 title "One-step synthesis of carbon dots embedded zincone microspheres for luminescent detection and removal of dichromate anions in water" @default.
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- W2892741009 doi "https://doi.org/10.1016/j.snb.2018.09.101" @default.
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