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Liu, F., Nguyen, T.-P., Wang, Q., Massuyeau, F., Dan, Y. & Jiang, L. (2019) Construction of Z-scheme g-C3N4/Ag/P3HT heterojunction for enhanced visible-light photocatalytic degradation of tetracycline (TC) and methyl orange (MO). Applied Surface Science, 496 UNSP 143653.
Added by: Richard Baschera (2019-10-25 09:29:58) Last edited by: Richard Baschera (2019-10-25 09:31:42) |
| Type de référence: Article DOI: 10.1016/j.apsusc.2019.143653 Clé BibTeX: Liu2019 Voir tous les détails bibliographiques  |
Catégories: IMN, INTERNATIONAL, PMN Créateurs: Dan, Jiang, Liu, Massuyeau, Nguyen, Wang Collection: Applied Surface Science |
Consultations : 1/656
Indice de consultation : 8% Indice de popularité : 2% |
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Constructing a conductive interface is crucial for the transfer of photoexcited charges in the photocatalytic heterojunction system. In this study, we introduced Ag into g-C3N4/P3HT system to construct a conductive interface which benefits for transfer of photoexcited charges between g-C3N4 and P3HT. A series of characterizations were employed to investigate the chemical structure, morphology and optical property of the obtained catalysts. And the photocatalytic activity of the as-prepared g-C3N4/Ag/P3HT composites were evaluated by the degradation of tetracycline (TC) and methyl orange (MO) aqueous solution under visible light irradiation. Results show that the g-C3N4/Ag/P3HT exhibits a broad absorption band in the region of 400-700 nm and the photocatalytic activity of g-C3N4/Ag/P3HT obtains a great improvement comparing with that of g-C3N4, g-C3N4/Ag and g-C3N4/P3HT. In addition, the optimized loading content of P3HT is 0.3 mass% based on g-C3N4. The enhanced photocatalytic performance is due to the introduction of Ag, which improves the transfer of photoexcited charges between g-C3N4 and P3HT. The active species trapping experiment shows that the main active specie is center dot O2-. After five recycling experiments, the g-C3N4/Ag/P3HT shows high stability in the photocatalytic performance.
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