Facile Synthesis of Luffa Sponge Activated Carbon Fiber Based Carbon Quantum Dots with Green Fluorescence and Their Application in Cr(VI) Determination

[Image: see text] Carbon quantum dots (CQDs) were prepared by a chemical oxidation method using luffa sponge based activated carbon fiber as the raw material. The obtained CQDs were well characterized. The fluorescence quenching effect of Cr(VI) ion on CQDs was investigated. The results show that th...

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Detalles Bibliográficos
Autores principales: Luo, Binhua, Yang, Hang, Zhou, Boxun, Ahmed, Sanjrani Manzoor, Zhang, Yi, Liu, Huamin, Liu, Xiaowen, He, Yong, Xia, Shibin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7081637/
https://www.ncbi.nlm.nih.gov/pubmed/32201847
http://dx.doi.org/10.1021/acsomega.0c00195
Descripción
Sumario:[Image: see text] Carbon quantum dots (CQDs) were prepared by a chemical oxidation method using luffa sponge based activated carbon fiber as the raw material. The obtained CQDs were well characterized. The fluorescence quenching effect of Cr(VI) ion on CQDs was investigated. The results show that the addition of Cr(VI) changes the intensity of the ultraviolet characteristic absorption peak of CQDs, and causes static quenching of the fluorescence of CQDs. With the increase in the Cr(VI) concentration, the fluorescence of CQDs was gradually extinguished linearly.

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