量子产额
荧光
水溶液
离子
检出限
光致发光
生物相容性
碳纤维
选择性
量子点
材料科学
碳量子点
热液循环
化学
光化学
纳米技术
化学工程
催化作用
光电子学
色谱法
有机化学
物理
量子力学
复合数
工程类
复合材料
作者
M. Nagaraj,Srinivasan Ramalingam,Chandran Murugan,Saad Aldawood,Jun-O Jin,In Ho Choi,Myung‐Hee Kim
标识
DOI:10.1016/j.envres.2022.113273
摘要
Natural products derived carbon quantum dots (CQDs) catch huge attention owing to their distinctive properties of smaller size, water dispersibility, high photostability, lower cost, tunable emission, biocompatibility, least toxicity, electrical conductivity, optical and catalytic properties, and easy modification. Herein high fluorescent CQDs were prepared using Borassus flabellifer (ice apple) as a carbon source utilizing the simplistic one-step hydrothermal method. The prepared CQDs possessed excellent photoluminescence, high photostability, and stability in an aqueous solution and harbored large of quantum yield and strong stability in high pH conditions with the characteristic strong blue fluorescence emission. With these superior properties, the CQDs have been used as sensing probes for the detection of Fe3+ ions having excellent selectivity and sensitivity with a 2.01 μM limit of detection. The CQDs decorated probe was found effective in detecting Fe3+ ions in the tap and drinking mineral water, suggesting the applicability of the prepared sensor. The developed sensor exhibited advantages, including simple, low-cost, label-free, rapid, and good sensitivity and selectivity towards Fe3+ ions, with a great application for detection of such ions in real water.
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