碱金属
量子点
材料科学
稻草
碳量子点
离子
碳纤维
水溶液中的金属离子
纳米技术
金属
无机化学
复合材料
冶金
化学
复合数
有机化学
作者
Xing Ye,Yanan Wang,Haichao Li
出处
期刊:Bioresources
[BioResources]
日期:2024-04-12
卷期号:19 (2): 3319-3327
标识
DOI:10.15376/biores.19.2.3319-3327
摘要
Carbon quantum dots (CQDs) with good water solubility and fluorescence properties were successfully synthesized from Chenopodium quinoa Willd. straw, a biomass by-product, by a one-step carbonization method. Structural characterization of the fabricated carbon quantum dots by Fourier transform infrared spectroscopy (FT-IR) demonstrated the presence of a large number of functional groups on the surface of the carbon quantum dots, which gives them good water solubility. The synthesized carbon quantum dots were characterized optically by ultraviolet-visible absorption spectroscopy (UV-Vis), photoluminescence spectroscopy (PL), and other analytical tools. Results indicate the addition of alkali metal ions gave a different degree of promotion of fluorescence intensity (Li+>Cs+>K+>Na+>Rb+), and according to this feature carbon quantum dots can be used as a new means of alkali metal ion detection.
科研通智能强力驱动
Strongly Powered by AbleSci AI