Screen-printed p-n BiOCl/BiFeO3 heterojunctions for efficient photocatalytic degradation of Rhodamine B

Fourmont, Paul et Cloutier, Sylvain G.. 2022. « Screen-printed p-n BiOCl/BiFeO3 heterojunctions for efficient photocatalytic degradation of Rhodamine B ». RSC Advances, vol. 12, nº 38. pp. 24868-24875.
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Résumé

Colloidal-free screen-printed p–n BiOCl/BiFeO3 heterojunctions are successfully synthesized to achieve photocatalytic degradation of Rhodamine B (RhB) using visible light (l $ 400 nm). The crystalline structure of dense BiOCl nanosheets self-assembled with impressive aspect ratio atop BFO powders is confirmed by XRD, Raman and TEM measurements. Iron impurities inside these 10 � 2 nm-thick BiOCl nanosheets increase visible light absorption. Fluorescent Rhodamine B (RhB) dye degradation is used to evaluate the photocatalytic performance of this unique heterojunction material. For optimal metal- enhanced RhB degradation, a few nanometers of platinum are deposited using the sputtering technique to act as a cocatalyst. This unique architecture yields an impressive 92% RhB degradation in only 150 min under visible light. Operating at near-neutral pH, the proposed approach also addresses the key issue of catalysis recovery, which remains one of the main drawbacks of current photocatalysis technologies

Type de document:	Article publié dans une revue, révisé par les pairs
Professeur:	Professeur Cloutier, Sylvain G.
Affiliation:	Génie électrique
Date de dépôt:	13 sept. 2022 16:13
Dernière modification:	12 oct. 2022 15:52
URI:	https://espace2.etsmtl.ca/id/eprint/25185

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