A Simple Approach to Prepare a C3N4/MoO3 Heterojunction with Improved Photocatalytic Performance for the Degradation of Methylparaben

Autor: Abdelaziz Imgharn, Tingwei Sun, Jimmy Nicolle, Yassine Naciri, Abdelghani Hsini, Abdallah Albourine, Conchi Ania
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Catalysts, Vol 14, Iss 3, p 170 (2024)
Druh dokumentu: article
ISSN: 2073-4344
11240318
DOI: 10.3390/catal14030170
Popis: The adequate optical properties, low cost, and thermal stability of graphitic carbon nitride and molybdenum oxide make them both promising materials for photocatalytic applications. However, they both suffer from strong recombination of their photogenerated charge carriers. Therefore, searching for strategies that enable an efficient charge carrier separation is desirable for improving the photocatalytic performance of both semiconductors. In this work, we have synthesized a g-C3N4/MoO3 heterojunction by a facile solid dispersion approach to the pristine semiconductors that allows a uniform dispersion of the two phases in the heterojunction. The resulting hybrid photocatalyst exhibits light absorption features similar to pristine g-C3N4 and presents an improved separation of the photogenerated charge carriers, likely through a Z-scheme between both semiconductor phases, as inferred by photoelectrochemical measurements. As a result, the g-C3N4/MoO3 heterojunction showed better photocatalytic activity than the individual semiconductors and good cycling stability for the degradation of methylparaben and its reaction intermediates. We drew these conclusions based on total organic carbon (TOC) measurements.
Databáze: Directory of Open Access Journals
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