Understanding the photophysical and surface properties of TiO 2-Al2O3 nanocomposites
Por:
Lee S.-W., Paraguay-Delgado F., Arizabalo R.D., Gómez R., Rodríguez-González V.
Publicada:
1 ene 2013
Resumen:
TiO2-Al2O3 nanocomposites (2-50 wt% Al2O3) were synthesized by the sol-gel process, simultaneously gelling aluminum and titanium alkoxide. Focusing on surface phenomena and thermal stability of synthesized nanocomposites, this research describes the way by which alumina binds to the TiO2 anatase phase and how the new framework modifies the photophysical and surface properties to achieve complete 2,4 Dichlorophenoxiacetic acid (2,4-D) degradation with t 1/2=38.3 min-1. The nanocomposite with 5 wt% of Al 2O3 shows optimum textural, adsorption abilities, and photocatalytic properties. © 2013 Elsevier B.V. All rights reserved.
Filiaciones:
Department of Environmental Engineering, Sun Moon University, Asan, South Korea
Departamento de Materiales Nanoestructurados, Centro de Investigación en Materiales Avanzados, 31109 Chih., Miguel de Cervantes 120 Chihuahua, Mexico
Dirección de Investigación y Posgrado, Instituto Mexicano Del Petróleo, México, D.F., 07730, Mexico
Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, México, D.F., 09340, Mexico
División de Materiales Avanzados. IPICYT, Instituto Potosino de Investigación Científica y Tecnológica, C.P. 78216, San Luis-Potosí, S.L.P., Camino a la Presa San José 2055, Mexico
|