Black sesame-derived carbon dots for metal ion and amine vapour sensing

2nd International Conference on Materials Engineering and Nano Sciences

材料科学;物理学

Paoprasert, Peerasak^1 ; Moonmuang, Hataipat^1 ; Supchocksoonthorn, Preeyanuch^1 ; Thongsai, Nichaphat^1 ; Kladsomboon, Sumana^2

Department of Chemistry, Faculty of Science and Technology, Thammasat University, Pathumthani

12120, Thailand^1

Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom

73170, Thailand^2

关键词: Carbon Nano-Particles;    Fluorescent emission;    Hydrothermal methods;    Metal ion detection;    Sensing applications;    Sensing material;    Transmission electron;    UV visible spectroscopy;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/378/1/012003/pdf
DOI  :  10.1088/1757-899X/378/1/012003

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Carbon dots (CDs) are carbon nanoparticles with unique properties, including high photo stability and low toxicity. In this work, CDs were synthesized from black sesame via one-step hydrothermal method. CDs were characterized using UV-visible spectroscopy, fluorescence spectroscopy, Fourier-transform infrared spectroscopy, transmission electron spectroscopy, and x-ray photoelectron spectroscopy. The results showed that the size of CDs was around 7 nm, and they exhibited blue fluorescent emission with a quantum yield of 1%. The obtained CDs were applied in sensing applications for metal ion detection and ethylenediamine vapour using an electronic nose. This work thus demonstrated that carbon dots prepared from black sesame are intriguing sensing materials for various chemicals.