Preparation of sulphuric acid-mediated N,S-codoped red emissive carbon dots: Applications in food dyes detection, solid-state luminescence and cell imaging

Autor:	Meng Tian, Lijuan Yang, Dandan Wang, Yongqing Tao, Luchun Wang, Junji Wang, Shaochi Liu, Tian Quan, Famin Ke, Kailian Zhang, Xiang Li, Die Gao
Rok vydání:	2022
Předmět:	Luminescence Spectrometry Fluorescence Quantum Dots Sulfuric Acids Instrumentation Spectroscopy Atomic and Molecular Physics and Optics Carbon Analytical Chemistry Fluorescent Dyes
Zdroj:	Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 281
ISSN:	1873-3557
Popis:	As diseases such as cardiovascular disease and cancer caused by food problems are more and more frequent, food safety has received great attention. Among them, the safety problem caused by food dyes is more prominent. Thus, it is of great value to develop sensitive detection methods for food dyes. In present study, sulphuric acid-mediated N,S-codoped red emissive carbon dots (namely as R-CDs) had been manufactured by using N-phenyl-o-phenylenediamine as precursor, sulfuric acid as additive for the first time. The structural and fluorescence properties of R-CDs had been systematically studied. The results demonstrated that R-CDs showed uniform spherical morphology and had a graphite-like structure, for which the average diameters size was 5.05 nm. Due to the various functional groups such as hydroxyl, pyridinic N, pyrrolic N and -C-SO
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdc2a55436bef6dad9b71aa2d0556782 https://pubmed.ncbi.nlm.nih.gov/35797950 Zobrazit plný text záznamu Full Text from ScienceDirect