Статья

Red/orange dual-emissive carbon dots for pH sensing and cell imaging

Miaoran ZhangState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, ChinaRigu SuState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, ChinaJian ZhongPersonalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 611731, ChinaLing FeiChemical Engineering Department, University of Louisiana at Lafayette, Lafayette, LA, 70504, USAWei CaiState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, ChinaQingwen GuanState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, ChinaWeijun LiState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, ChinaNeng LiState Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, ChinaYu‐Sheng ChenDepartment of Chemistry, University of Akron, Akron, OH, 44325, USALulu CaiPersonalized Drug Therapy Key Laboratory of Sichuan Province, Department of Pharmacy, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, 611731, ChinaQuan XuState Key Laboratory of Heavy Oil Processing, Beijing Key Laboratory of Biogas Upgrading Utilization, China University of Petroleum (Beijing), Beijing, 102249, China

2019en

ABI

Аннотация

The dual-emissive N, S co-doped carbon dots (N, S-CDs) with a long emission wavelength were synthesized via solvothermal method. The N, S-CDs possess relatively high photoluminescence (PL) quantum yield (QY) (35.7%) towards near-infrared fluorescent peak up to 648 nm. With the advanced characterization techniques including X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), etc. It is found that the doped N, S elements play an important role in the formation of high QY CDs. The N, S-CDs exist distinct pH-sensitive feature with reversible fluorescence in a good linear relationship with pH values in the range of 1.0–13.0. What is more, N, S-CDs can be used as an ultrasensitive Ag+ probe sensor with the resolution up to 0.4 μM. This finding will expand the application of as prepared N, S-CDs in sensing and environmental fields.

Перевод пока недоступен

Идентификаторы

DOI: 10.1007/s12274-019-2293-z

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar