Giant Photodegradation Rate Enabled by Vertically Grown 1T/2H MoS<sub>2</sub> Catalyst on Top of Silver Nanoparticles
Driss Mouloua, Nitul S. Rajput, M. Lejeune, Miguel Beruete, M. El Marssi, My Alı El Khakani, Mustapha Jouiad
Abstract
The exaltation of the photodegradation performance of dichalcogenide MoS 2 grown on top of silver nanoparticles (Ag‐NPs) is reported on. The fabricated MoS 2 nanosheets nucleate vertically from Ag‐NPs seeds, enabling the growth of both metallic and semiconductor phases 1T/2H‐MoS 2 . Findings reveal remarkable enhancement of the Raman scattering and an exceptional broadband optical absorption attributed to plasmonic effects induced by the presence of both metallic 1T‐MoS 2 and Ag‐NPS at 2H‐MoS 2 interfaces. To leverage this effect, photodegradation tests are conducted to remove methyl orange pollutant. Notably, results reveal a significant increase in photodegradation efficiency and rate constant, reaching up to 120% and 550% over pristine 2H‐MoS 2 , respectively. This finding underscores the role of Ag‐NPs and 1T‐MoS 2 tandem to unlock the superior photodegradation properties of vertically aligned 2H‐MoS 2 toward methyl orange, paving the way for the development of dichalcogenide‐based hybrid photocatalyst for wastewater treatment and environmental remediation.