Comparative study of KF, KCl and KBr doped with graphitic carbon nitride for superior photocatalytic degradation of methylene blue under visible light

被引：44

作者：

Prabakaran, E. ^{[1
]}

Velempini, T. ^{[1
]}

Molefe, M. ^{[1
]}

Pillay, K. ^{[1
]}

机构：

[1] Univ Johannesburg, Dept Chem Sci, Doornfontein Campus, ZA-2028 Johannesburg, South Africa

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2021年 / 15卷

基金：

新加坡国家研究基金会;

关键词：

KX-g-C3N4; Photocatalyst; Methylene blue; Visible light irradiation; COMPOSITE PHOTOCATALYSTS; HIGHLY EFFICIENT; G-C3N4; DRIVEN; PERFORMANCE; EVOLUTION; HETEROJUNCTIONS; ADSORPTION; OXIDATION; GRAPHENE;

D O I：

10.1016/j.jmrt.2021.10.128

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study potassium salts such as KF, KCl and KBr were doped onto g-C3N4 to form KX-g-C3N4 (X 1/4 F, Cl and Br) via a thermal method. The KX-g-C3N4 was characterized by various instrumentation techniques such as UV-visible, FT-IR, XRD, Photoluminescence, TGA, BET, Raman, SEM, EDAX, HR-TEM, and Zeta potential. KX-g-C3N4 was explored for the photocatalytic degradation of methylene blue (MB) under visible light irradiation. Among them, KF-g-C3N4 showed excellent photocatalytic degradation of methylene blue (MB) under visible light irradiation. The KF-g-C3N4 significantly reduced the electrons-holes recombination rate when compared to KCl-g-C3N4, KBr-g-C3N4 and g-C3N4. The photo catalytic degradation mechanism was also studied with KF-g-C3N4. (c) 2021 Published by Elsevier B.V.

引用

页码：6340 / 6355

页数：16

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