Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity

Mera, AC; Moreno Y.; Pivan, JY; Peña O.; Mansilla, HD

Abstract

BiOI microspheres were synthesized by a solvothermal synthesis route from Bi(NO3)(3)center dot 5H(2)O, using ethylene glycol in the presence of the ionic liquid 1-butyl-3-methylimidazolium iodide. The autoclave temperature was maintained constant at 120 degrees C and the reaction time was varied from 2 to 48 h. The obtained materials were characterized by XRD, SEM, TEM, EDS, nitrogen adsorption, FTIR and DRS. In addition, the photocatalytic activity of synthesized BiOI was evaluated in the oxidation of caffeic acid under simulated solar irradiation. Samples obtained between 12 and 24h of synthesis present microsphere shapes and higher photocatalytic activity. All materials exhibit higher activities than TiO2 Evonik P25 used as standard catalyst. (C) 2014 Elsevier B.V. All rights reserved.

Más información

Título según WOS: Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity
Título según SCOPUS: Solvothermal synthesis of BiOI microspheres: Effect of the reaction time on the morphology and photocatalytic activity
Título de la Revista: JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volumen: 289
Editorial: ELSEVIER SCIENCE SA
Fecha de publicación: 2014
Página de inicio: 7
Página final: 13
Idioma: English
DOI:

10.1016/j.jphotochem.2014.05.015

Notas: ISI, SCOPUS