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Green Synthesis of Carbon Dots from Grapefruit and Its Fluorescence Enhancement
Journal of Nanomaterials ( IF 3.791 ) Pub Date : 2020-06-29 , DOI: 10.1155/2020/8601307
Xinzhu Huo 1 , Yuxuan He 1 , Shiqi Ma 1 , Yingying Jia 1 , Jiaming Yu 1 , Yu Li 2 , Qian Cheng 1
Affiliation  

In this study, undoped carbon quantum dots (UCQDs, UCQDs-peel) and N-doped carbon dots (NCQDs) were prepared by a facile one-pot environmentally friendly hydrothermal method using grapefruit as carbon sources in the absence and presence of area, respectively. The structure, morphology, and fluorescence properties of three samples were characterized by Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and photoluminescence (PL). It was found that three types of CQDs could emit blue fluorescence with different intensities when irradiated with ultraviolet light. Compared to the luminescence properties of UCQDs, NCQDs, and UCQDs-peel, it can be seen that the fluorescence intensity of NCQDs was strongest due to the presence of NH and C-N bonds.

中文翻译:

葡萄柚碳点的绿色合成及其荧光增强

在这项研究中,通过简便的一锅环保水热法,以葡萄柚为碳源,在不存在区域和存在区域的情况下,分别制备了未掺杂碳量子点(UCQDs,UCQDs-peel)和氮掺杂碳点(NCQDs) 。通过傅里叶变换红外光谱(FT-IR),透射电子显微镜(TEM)和光致发光(PL)对三个样品的结构,形态和荧光性质进行了表征。已经发现,三种类型的CQD在用紫外线照射时可以发出不同强度的蓝色荧光。与UCQDs,NCQDs和UCQDs-peel的发光特性相比,可以看到由于NH和CN键的存在,NCQDs的荧光强度最强。
更新日期:2020-06-29
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