Work

Sulfur-doped carbon dots synthesis under microwave irradiation as turn-off fluorescent sensor for Cr(III)

Year: 2021

Type: article

Abstract: This study synthesized a facile and high sensitive fluorescent probe based on sulfur-doped carbon dots (S-CDs) using a one-step microwave irradiation method. The probe exhibited a strong blue emission and a high quantum yield (QY) of 36.40%. In the detection, the presence of trivalent chromium (Cr(III)) strongly quenched the PL intensity of S-CDs by the inner filter effect (IFE) quenching mechanism of Cr(III) on the S-CDs. The S-CDs exhibited good sensitivity to turn-off Cr(III) detection with a linear range concentration of 0–45 μM and a detection limit of 0.17 μM. Furthermore, the proposed method has been successfully applied for Cr(III) detection in natural water samples with the 93.68–106.20% recoveries.

Source: Journal of Analytical Science & Technology

DOI: 10.1186/s40543-021-00298-y

Authors: Siti Raudhatul Kamali, Chang-Nan Chen, Dinesh Chandra Agrawal, Tai-Huei Wei

Institutions: Chaoyang University of Technology, University of Mataram, National Chung Cheng University

Language: English

Topic: Carbon and Quantum Dots Applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid:

Funder: Chaoyang University of Technology