TY - JOUR
T1 - Removal of aqueous chromium and environmental CO 2 by using photocatalytic TiO 2 doped with tungsten
AU - Trejo-Valdez, M.
AU - Hernández-Guzmán, S. R.
AU - Manriquez-Ramírez, M. E.
AU - Sobral, H.
AU - Martínez-Gutiérrez, H.
AU - Torres-Torres, C.
N1 - Publisher Copyright:
© 2018 Elsevier B.V.
PY - 2019/5/15
Y1 - 2019/5/15
N2 - Removal of hexavalent chromium was accomplished by using photocatalyst materials of TiO 2 doped with tungsten oxide, environmental air as oxygen supply and white light as irradiation source. Dichromate anions in concentration ranges of 50 to 1000 μg/L were removed by means of aqueous dispersions of TiO 2 doped with tungsten. The aqueous chromium analyses were performed by Differential Pulse Voltammetry technique. Additionally, mineralization of CO 2 gas was promoted by the photocatalysis process, as was clearly shown by Raman spectroscopy and X-ray Photoelectron Spectroscopy (XPS) analyses obtained from the TiO 2 samples recovered after photocatalytic experiments. Results of sample analyses by Scanning Electron Microscopy (SEM) and High Resolution Transmission Electron Microscopy (HRTEM) are presented and discussed.
AB - Removal of hexavalent chromium was accomplished by using photocatalyst materials of TiO 2 doped with tungsten oxide, environmental air as oxygen supply and white light as irradiation source. Dichromate anions in concentration ranges of 50 to 1000 μg/L were removed by means of aqueous dispersions of TiO 2 doped with tungsten. The aqueous chromium analyses were performed by Differential Pulse Voltammetry technique. Additionally, mineralization of CO 2 gas was promoted by the photocatalysis process, as was clearly shown by Raman spectroscopy and X-ray Photoelectron Spectroscopy (XPS) analyses obtained from the TiO 2 samples recovered after photocatalytic experiments. Results of sample analyses by Scanning Electron Microscopy (SEM) and High Resolution Transmission Electron Microscopy (HRTEM) are presented and discussed.
KW - CO
KW - Chromium removal
KW - TiO photocatalysis
UR - http://www.scopus.com/inward/record.url?scp=85047091781&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2018.05.008
DO - 10.1016/j.jhazmat.2018.05.008
M3 - Artículo
C2 - 29776703
SN - 0304-3894
SP - 196
EP - 202
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -