Structural and morphological characterization of hydrothermally synthesized N-Carbon Dot @ Fe3O4 composites for heavy metal ion detection. (2022)

• Record Type: Journal Article
• Authors: Abinaya, S.; Baby, Anjana; Gurunathan, K.; Sreeja, P.B.; Jose, Sujin P.
• Is Part Of: Materials today. Volume 64(2022)Supplement Part 5
• Page Start: 1854
• Page End: 1858
• Publication Date: 2022
• Subjects: Heavy metal -- Carbon Dots -- Fluorescence -- Hydrothermal -- Composites; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.06.321
• Languages: English
• ISSNs: 2214-7853

Abstract

Highlights: N-Carbon Dot (CD) @ Fe3 O4 composite was successfully fabricated via the hydrothermal method. Prepared composite exhibited noticeable fluorescence properties. The SEM image of N- CD @ Fe3 O4 shows spherical surface morphology. N- CD @ Fe3 O4 composite offers new insight into the evolution of highly selective and sensitive materials for water remediation applications. Abstract: Heavy Metal-ion contamination is one of the most serious issues facing day-to-day life. To address this issue, sensing and removal of heavy metal ions in contaminated water become indispensable. Carbon Dots are hydrophilic in nature with magnificent electron acceptor and electron donator and hence it has been used as fluorescent probes for sensing applications. The present study deals with the synthesis of N-Carbon Dot (N-CD) @ Fe3 O4 composite which was successfully fabricated via the hydrothermal method. The surface structure and morphology of the synthesized composite were characterized using X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The elemental analysis of a sample was characterized using Energy Dispersive Spectroscopy (EDS). Further, the phase occurrence and the molecular vibration were analysed using XRD and Fourier Transform Infra-Red Spectroscopy (FTIR). Finally, the optical studies were measured using Ultraviolet–visible Spectroscopy (UV– Vis) and Photoluminescence Spectroscopy (PL). The prepared composite exhibited noticeable fluorescence properties and has promising potential for the detection and removal of toxic heavy metal ions in water.