生物相容性
热液循环
量子产额
光致发光
纳米材料
材料科学
纳米技术
碳纤维
碳量子点
荧光
水热合成
吸收(声学)
水溶液
水溶液中的金属离子
量子点
金属
化学工程
化学
有机化学
光电子学
复合数
冶金
复合材料
工程类
物理
量子力学
作者
Harpreet Singh,Amy Bamrah,Madhu Khatri,Neha Bhardwaj
标识
DOI:10.1016/j.matpr.2020.05.297
摘要
Carbon quantum dots (CQDs) have emerged as the promising class of fluorescent nanomaterials with size ranging from 2 to 10 nm. The CQDs possess amazing properties such as good solubility, photoluminescence, high quantum yield, functional groups on surface, photostability, biocompatibility and low toxicity. CQDs are a trending topic of intense research as they are being used for a wide range of applications such as biological imaging, sensing, drug delivery and catalysis. Nowadays, the focus of researchers has shifted towards the green synthesis of CQDs from natural and environment friendly sources. The present work reports the synthesis of fluorescent CQDs from cabbage as the natural carbon source by hydrothermal method. The as-synthesized CQDs were characterized using various analytical techniques to obtain information regarding their absorption/emission spectra, chemical functionality and morphology. Further, the synthesized CQDs were explored for optical sensing of various heavy metal ions in aqueous medium. The study provides a simple and economical method of utilizing CQDs for environmental sensing applications.
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