Improved Visible Light-driven Photocatalytic Degradation of Methylene Blue and Methyl Red by Boron-doped Carbon Quantum Dots

Overview

Journal Turk J Chem

Publisher Scientific and Technological Research Council of Turkey

Date 2023 Aug 4

PMID 37538775

Authors

Bircan Haspulat Taymaz

Cisem Kirbiyik Kurukavak

Handan Kamis

Mahmut Kus

Affiliations

Soon will be listed here.

Abstract

The synthesis of fluorescent carbon quantum dots (CQDs) and their applications have attracted great attention due to their excellent properties. Especially, the unique visible-light absorption and photo-induced electron transfer properties make CQDs available in photocatalytic degradation of organic dye pollutants in water resources. Herein, we synthesized nondoped CQDs and boron-doped CQDs (B-CQDs) by hydrothermal method and compared their photocatalytic degradation activity of methylene blue (MB) and methyl red (MR) dyes under visible light irradiation. The characterization outcomes showed that the optical and structural properties can be easily improved by doping with hetero-atom, thereby photocatalytic performance. As expected, the photodegradation performance of both organic dyes in model solutions by B-CQDs was higher than that of CQDs. MB and MR dyes were photodegraded over 95% by B-CQDs in 90 and 120 min visible light irradiation, respectively. Eventually, the results revealed that nondoped CQDs and B-CQDs are excellent candidates for the degradation of organic dyes because of their high photocatalytic performance under visible light illumination.

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