Boosting photocatalytic property of graphitic carbon nitride with metal complex fabrication for efficient degradation of organic pollutants.
Chemosphere
; 323: 138230, 2023 May.
Article
em En
| MEDLINE
| ID: mdl-36863630
ABSTRACT
The development of efficient and stable photocatalysts for degradation of refractory pollutants using minimal amounts of metal remains a major challenge. Herein, we synthesize a novel catalyst by fabrication of manganese (III) acetylacetonate complex [Mn (acac)3] over graphitic carbon nitride (GCN) denoted as 2-Mn/GCN by facile ultra-sonication method. The fabrication of the metal complex enables the migration of electrons from the conduction band of graphitic carbon nitride to Mn (acac)3, and migration of holes from valence band of Mn (acac)3 to GCN upon irradiation. Exploiting the improved surface properties, light absorption, and charge separation ensure generation of superoxide and hydroxyl radicals resulting in the rapid degradation of a variety of pollutants. The designed 2-Mn/GCN catalyst realized 99.59% rhodamine b (RhB) degradation in 55 min and 97.6% metronidazole (MTZ) degradation in 40 min with 0.7% Mn content. The influence of catalyst amount, different pH and presence of anions on the degradation kinetics was also explored to offer insights into photoactive material design.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Ambientais
/
Complexos de Coordenação
/
Grafite
Idioma:
En
Revista:
Chemosphere
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Índia