Photodegradation of phenol and cresol in aqueous medium by using Zn/Al + Fe mixed oxides obtained from layered double hydroxides materials

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Abstract

ZnAlFe layered double hydroxides (LDHs) were synthesized by the co-precipitation method at different MII/MIII ratio. The solids were calcined at 723 K obtaining the respective mixed oxides with high specific surface areas (138-70 m2/g) and semiconductor properties (band gap values of 2.54-2.04 eV). The photocatalytic activity of these materials was tested for the photodegradation of aqueous solutions containing phenol and p-cresol (40 ppm), in presence of a UV light source. A disappearance of 98% of phenol and a total photodegradation of p-cresol were obtained after 6 and 4 h, respectively. © 2009 Elsevier B.V. All rights reserved.
Original languageAmerican English
Pages (from-to)353-357
Number of pages317
JournalCatalysis Today
DOIs
StatePublished - 30 Mar 2010
Externally publishedYes

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cresol
Hydroxides
Photodegradation
photodegradation
Phenol
Oxides
Phenols
hydroxide
phenol
oxide
Coprecipitation
Specific surface area
Ultraviolet radiation
Energy gap
aqueous solution
surface area
Semiconductor materials
4-cresol
material

Cite this

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title = "Photodegradation of phenol and cresol in aqueous medium by using Zn/Al + Fe mixed oxides obtained from layered double hydroxides materials",
abstract = "ZnAlFe layered double hydroxides (LDHs) were synthesized by the co-precipitation method at different MII/MIII ratio. The solids were calcined at 723 K obtaining the respective mixed oxides with high specific surface areas (138-70 m2/g) and semiconductor properties (band gap values of 2.54-2.04 eV). The photocatalytic activity of these materials was tested for the photodegradation of aqueous solutions containing phenol and p-cresol (40 ppm), in presence of a UV light source. A disappearance of 98{\%} of phenol and a total photodegradation of p-cresol were obtained after 6 and 4 h, respectively. {\circledC} 2009 Elsevier B.V. All rights reserved.",
author = "A. Mantilla and F. Tzompantzi and Fern{\'a}ndez, {J. L.} and G{\'o}ngora, {J. A.I.D{\'i}az} and R. G{\'o}mez",
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T1 - Photodegradation of phenol and cresol in aqueous medium by using Zn/Al + Fe mixed oxides obtained from layered double hydroxides materials

AU - Mantilla, A.

AU - Tzompantzi, F.

AU - Fernández, J. L.

AU - Góngora, J. A.I.Díaz

AU - Gómez, R.

PY - 2010/3/30

Y1 - 2010/3/30

N2 - ZnAlFe layered double hydroxides (LDHs) were synthesized by the co-precipitation method at different MII/MIII ratio. The solids were calcined at 723 K obtaining the respective mixed oxides with high specific surface areas (138-70 m2/g) and semiconductor properties (band gap values of 2.54-2.04 eV). The photocatalytic activity of these materials was tested for the photodegradation of aqueous solutions containing phenol and p-cresol (40 ppm), in presence of a UV light source. A disappearance of 98% of phenol and a total photodegradation of p-cresol were obtained after 6 and 4 h, respectively. © 2009 Elsevier B.V. All rights reserved.

AB - ZnAlFe layered double hydroxides (LDHs) were synthesized by the co-precipitation method at different MII/MIII ratio. The solids were calcined at 723 K obtaining the respective mixed oxides with high specific surface areas (138-70 m2/g) and semiconductor properties (band gap values of 2.54-2.04 eV). The photocatalytic activity of these materials was tested for the photodegradation of aqueous solutions containing phenol and p-cresol (40 ppm), in presence of a UV light source. A disappearance of 98% of phenol and a total photodegradation of p-cresol were obtained after 6 and 4 h, respectively. © 2009 Elsevier B.V. All rights reserved.

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