Green and Selective Fluorescent Sensor for Detection of Sn (IV) and Mo (VI) Based on Boron and Nitrogen-Co-Doped Carbon Dots

Abstract

A green and simple microwave-assisted method was used to synthesis water-soluble boron and nitrogen-co-doped carbon dots (B-N-CDs). These B-N-CDs were successfully used for the fluorescent determination of Sn and Mo ions. This probe had a fast response time at pH = 4 with high sensitivity and selectivity. Linear correlation between F/F and the concentration was seen in the range of 0.2-18 μM and 0.2-25 μM for Sn and Mo, respectively. Under optimum condition, the limit of detection (LOD) for Sn and Mo were 150 nM and 132 nM, respectively. The performance of the sensor was evaluated by different real samples such as tap, river and mineral water, canned fish sample and tomato samples.

Recent Advances in Boron‐ and Nitrogen‐Doped Carbon‐Based Materials and Their Various Applications

“…The efficiency of the fabricated sensor was tested with various daily life samples, including tap, river, and mineral water; tomato; and canned fish samples. [65] B, N dual-doped carbon dots (BN-CDs) exhibiting emissions in the red region were synthesized using a hydrothermal method from boric acid and cresyl violet. The BN-CDs exhibited excitation/emission maxima at 520/616 nm, less cytotoxicity, excellent photostability, and a large quantum yield rate of 18%.…”

“…The efficiency of the fabricated sensor was tested with various daily life samples, including tap, river, and mineral water; tomato; and canned fish samples. [ 65 ]…”

Sequential Fluorescence Recognition of Molybdenum(VI), Arsenite, and Phosphate Ions in a Ratiometric Manner: A Facile Approach for Discrimination of AsO2–and H2PO4–

“…A cascade approach for determination of multiple ions is cost-effective, time-saving, and highly desirable for practical applications. 16,17…”

“…A cascade approach for determination of multiple ions is cost-effective, time-saving, and highly desirable for practical applications. 16,17 Molybdenum 18−21 and its alloys have small expansion coefficient, high melting point, and good conductivity and corrosion resistance. 22−26 Mo is a cofactor of several enzymes like nitrogenase, aldehyde oxidase, xanthine oxidase, sulfite oxidase, nitrate reductase, and xanthine dehydrogenase.…”

“…On the other hand, the fluorescence method provides instantaneous detection, visual perception, and a low-cost methodology that excludes intrinsic sample pretreatment. A cascade approach for determination of multiple ions is cost-effective, time-saving, and highly desirable for practical applications. , …”