Platinum nanoparticles confined within TiO2 nanotube matrix for enhanced catalytic reduction of azure b dye

Krishnamoorthy Shanmugaraj, Ramalinga Viswanathan Mangalaraja, Cristian H. Campos, Dinesh Pratap Singh, R. Udayabhaskar, Santiago Bedoya, Radhamanohar Aepuru

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

In this work, we report the synthesis of TiO2 nanotubes encapsulated platinum nanoparticles (PtNPs-TiO2NTs) as a highly efficient catalyst for the catalytic reduction of azure B (AZB) dye in the sodium borohydride (NaBH4) medium. The encapsulation of PtNPs (particle size ∼ 2–3 nm) inside the TiO2NTs was confirmed by HR-TEM analysis. The as-prepared PtNPs-TiO2NTs exhibit higher conversion efficiency than 99 % with a pseudo-first order rate constant of 2.6 × 10-3 s−1. Owing to the confinement effect of PtNPs inside the TiO2NTs, the synthesized catalyst shows the superior operative stability even after 8 consecutive recycles without any loss in its activity. This work opens up new avenue for the designing of confined catalyst for various industrial catalytic reactions.

Idioma originalInglés
Número de artículo133208
PublicaciónMaterials Letters
Volumen330
DOI
EstadoPublicada - 1 ene. 2023
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Platinum nanoparticles confined within TiO2 nanotube matrix for enhanced catalytic reduction of azure b dye'. En conjunto forman una huella única.

Citar esto