TY - JOUR
T1 - Photocatalytic degradation of 2,4-dichlorophenol with MgAlTi mixed oxides catalysts obtained from layered double hydroxides
AU - Mendoza-Damián, G.
AU - Tzompantzi, F.
AU - Mantilla, A.
AU - Barrera, A.
AU - Lartundo-Rojas, L.
N1 - Funding Information:
The authors are grateful to CONACyT for the financial support (Projects 154994 and 169157). Angeles Mantilla is grateful to IPN for the financial support (Project SIP 20131470). Guadalupe Mendoza Damián thanks to CONACYT for the scholarship granted (Scholarship number: 252081). The authors are grateful to Ing. Patricia Castillo Ocampo (Electronic Microscopy Laboratory, CBI, UAM-I) for SEM and TEM analysis of the materials.
PY - 2013/12/15
Y1 - 2013/12/15
N2 - MgAl and MgAlTi mixed oxides were obtained from the thermal treatment of LDH materials synthesized by the sol-gel method; these materials were characterized by N2 physisorption, XRD, UV-vis, XPS, EDS-SEM and TEM techniques. According to the results, Ti was incorporated in the LDH layer when content in the material was low. The MgAl and MgAlTi mixed oxides were evaluated in the photo-degradation of 2,4-dichlorophenol (2,4-DCP) in the presence of UV light. A superior efficiency in the photo-degradation of 2,4-DCP, in comparison with the Degussa P-25 TiO2 reference catalyst was observed, reaching a total decomposition of the 2,4-DCP molecule in less than 60min. According to the results, Ti was incorporated in the LDH layer when the content in the material was low. The MgAl and MgAlTi mixed oxides were evaluated in the photo-degradation of 2,4-dichlorophenol (2,4-DCP) in the presence of UV light. A superior efficiency in the photo-degradation of 2,4-DCP with the MgAl and MgAlTi mixed oxides, in comparison with the Degussa P-25 TiO2 reference catalyst was observed, reaching a total decomposition of the 2,4-DCP molecule in less than 60min.
AB - MgAl and MgAlTi mixed oxides were obtained from the thermal treatment of LDH materials synthesized by the sol-gel method; these materials were characterized by N2 physisorption, XRD, UV-vis, XPS, EDS-SEM and TEM techniques. According to the results, Ti was incorporated in the LDH layer when content in the material was low. The MgAl and MgAlTi mixed oxides were evaluated in the photo-degradation of 2,4-dichlorophenol (2,4-DCP) in the presence of UV light. A superior efficiency in the photo-degradation of 2,4-DCP, in comparison with the Degussa P-25 TiO2 reference catalyst was observed, reaching a total decomposition of the 2,4-DCP molecule in less than 60min. According to the results, Ti was incorporated in the LDH layer when the content in the material was low. The MgAl and MgAlTi mixed oxides were evaluated in the photo-degradation of 2,4-dichlorophenol (2,4-DCP) in the presence of UV light. A superior efficiency in the photo-degradation of 2,4-DCP with the MgAl and MgAlTi mixed oxides, in comparison with the Degussa P-25 TiO2 reference catalyst was observed, reaching a total decomposition of the 2,4-DCP molecule in less than 60min.
KW - 2,4-Dichlorophenol photo-degradation
KW - MgAlTi LDH sol-gel synthesis
KW - MgAlTi mixed oxide photocatalysts
KW - MgAlTi photocatalysts
KW - XPS analysis
UR - http://www.scopus.com/inward/record.url?scp=84888202780&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2013.09.047
DO - 10.1016/j.jhazmat.2013.09.047
M3 - Artículo
C2 - 24184126
SN - 0304-3894
VL - 263
SP - 67
EP - 72
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
ER -