Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource A ratiometric fluorescent sensor based on dual-emissive carbon dot for the selective detection of Cd2+ Subject The topic of the resource Biomass-derived; Cadmium; Carbon quantum dots; Pollutant; Ratiometric fluorescence sensor Description An account of the resource Cadmium (Cd2+), a heavy metal ion used in numerous industries, has toxic adverse effects on the environment; it is crucial to develop a quick and reliable method for Cd2+ determination. Fluorescent biomass-derived carbon quantum dots (CD) with rich carboxyl groups on the surface were synthesized using water amaranth leaves by hydrothermal method with a 12.1% quantum yield. The surface of CD was further modified with 1-pyrene carboxaldehyde (PC) to synthesize pyrene carboxaldehyde-carbon quantum dots (PC-CD). This study developed a fluorescent ratiometric nanosensor using a covalently functionalized CD with pyrene derivative and demonstrates highly selective identification capability towards Cd2+ over competing metal ions. The Nano sensor has significant selectivity towards Cd2+ in an excellent linear range of 0-70 ?M with a detection limit as low as 15 nM and demonstrates excellent water solubility and biocompatibility. Transmission electron spectroscopy (TEM), Fourier Transform infrared spectroscopy (FT-IR), and X-ray photon spectroscopy (XPS) were used to identify the surface functionalization of PC-CD. Finally, the developed ratiometric sensor was used for detecting Cd2+ metal ions from various water effluents. 2023 Elsevier Ltd. Creator An entity primarily responsible for making the resource Keerthana P.; Kumar Das A.; Bharath M.; Ghosh M.; Varghese A. Source A related resource from which the described resource is derived Journal of Environmental Chemical Engineering, Vol-11, No. 2 Publisher An entity responsible for making the resource available Elsevier Ltd Date A point or period of time associated with an event in the lifecycle of the resource 2023-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1016/j.jece.2023.109325" target="_blank" rel="noreferrer noopener">https://doi.org/10.1016/j.jece.2023.109325</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147733950&amp;doi=10.1016%2Fj.jece.2023.109325&amp;partnerID=40&amp;md5=beb7d905c2acdeeac3d56406830b6f03" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85147733950&amp;doi=10.1016%2fj.jece.2023.109325&amp;partnerID=40&amp;md5=beb7d905c2acdeeac3d56406830b6f03</a> Rights Information about rights held in and over the resource Restricted Access Relation A related resource ISSN: 22133437 Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Keerthana P., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bangalore, 560029, India; Kumar Das A., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bangalore, 560029, India; Bharath M., Department of Chemistry, Ashoka University, Haryana, 131029, India; Ghosh M., Department of Chemistry, Ashoka University, Haryana, 131029, India; Varghese A., Department of Chemistry, CHRIST (Deemed to Be University), Karnataka, Bangalore, 560029, India