Synthesis of crab-shell derived CQDs for Cd2+ detection and antibacterial applications
- Authors
- Elango, D.; Saranya, Packialakshmi J.; Manikandan, V.; Jayanthi, P.
- Issue Date
- 15-Apr-2022
- Publisher
- Elsevier
- Keywords
- Carbon materials; Cd2+ ion detection; Luminescence; Particles, nanosize
- Citation
- Materials Letters, v.313
- Journal Title
- Materials Letters
- Volume
- 313
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/83833
- DOI
- 10.1016/j.matlet.2022.131822
- ISSN
- 0167-577X
- Abstract
- The green synthesis of scalable high-quality fluorescent carbon quantum dots (CQDs) from natural biomass always remains an attraction. CQDs are promising materials for sensing the cadmium ions, as a class of toxic heavy metal ions, and have attracted much attention due to their chronic toxic effects on humans. The CQDs from crab shell waste were synthesized by the one-step hydrothermal method as a pioneering study and evaluated for Cd2+ ions detection and antibacterial activity. The synthesized CQDs exhibited bright green fluorescence under UV light irradiation (330 nm) and showed exorbitant quenching of Cd2+ ions in aqueous media by selective detection at the concentration range of 50–250 µM. They also exhibited antibacterial activity against two water-borne pathogens, E. coli and K. pneumonia indicating the practical applicability of CQDs in Cd2+ ions detection and antibiosis. © 2022 Elsevier B.V.
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