TY - JOUR
T1 - Photocatalytic behavior for the phenol degradation of ZnAl layered double hydroxide functionalized with SDS
AU - Romero Ortiz, G.
AU - Lartundo-Rojas, L.
AU - Samaniego-Benítez, J. Enrique
AU - Jiménez-Flores, Y.
AU - Calderón, H. A.
AU - Mantilla, A.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/1/1
Y1 - 2021/1/1
N2 - Functionalized ZnAl layered double hydroxide based photocatalyst was obtained by the addition of sodium dodecyl sulfate (SDS) during the synthesis by the coprecipitation method, and further calcination at 400 °C. Bare and modified materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, IR, UV–Vis, EPR and XPS spectroscopies, SEM and HRTEM. The synthesized material was evaluated in the photodegradation of phenol in a 40 ppm aqueous solution (4.25 × 10−4 mol of phenol/L), under UV light irradiation. An increasing in the degradation of phenol from 62 to 95%, and from 62 to 82% in the mineralization of phenol was obtained using SDS functionalized ZnAl LDH, in comparison with the unmodified material. This increase could be attributed to the presence of sulfate radicals, confirmed by the EPR study.
AB - Functionalized ZnAl layered double hydroxide based photocatalyst was obtained by the addition of sodium dodecyl sulfate (SDS) during the synthesis by the coprecipitation method, and further calcination at 400 °C. Bare and modified materials were characterized by X-ray diffraction, nitrogen adsorption-desorption, IR, UV–Vis, EPR and XPS spectroscopies, SEM and HRTEM. The synthesized material was evaluated in the photodegradation of phenol in a 40 ppm aqueous solution (4.25 × 10−4 mol of phenol/L), under UV light irradiation. An increasing in the degradation of phenol from 62 to 95%, and from 62 to 82% in the mineralization of phenol was obtained using SDS functionalized ZnAl LDH, in comparison with the unmodified material. This increase could be attributed to the presence of sulfate radicals, confirmed by the EPR study.
KW - Layered double hydroxides
KW - Phenol
KW - Photocatalyst
KW - Photodegradation
KW - Sulfate radicals
UR - http://www.scopus.com/inward/record.url?scp=85092522113&partnerID=8YFLogxK
U2 - 10.1016/j.jenvman.2020.111399
DO - 10.1016/j.jenvman.2020.111399
M3 - Artículo
C2 - 33059324
AN - SCOPUS:85092522113
SN - 0301-4797
VL - 277
JO - Journal of Environmental Management
JF - Journal of Environmental Management
M1 - 111399
ER -