Tuning the structure of a hierarchically porous ZrO2 for dye molecule depollution

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

A novel strategy that tailors porous zirconia structures via a control of zirconium alkoxide reactivities has been developed. This control was achieved by limiting the amount of water present in the system through the use of an acetonitrile medium. Varying the amount of water present during the reaction has led to a better understanding of the self-formation phenomenon of hierarchical porosity. The choice of zirconium alkoxide precursor has also been studied. The porosity of the zirconia can be altered simply by tuning the water:acetonitrile ratio. A significant change in the porous structure has been observed with increasing water content. This revelation has led to a better understanding of the formation of hierarchically porous structures and the development of a very efficient and simple method to tailor hierarchical porosity over different length scales. The synthesized zirconia products, with differing porous structures, showed a very high adsorption capacity for dye molecules in aqueous solution. A relationship between the porous structure and the adsorption capacity of dye molecules has been evidenced, suggesting their potential application in water treatment as decontamination materials.
langue originaleAnglais
Pages (de - à)110-121
Nombre de pages12
journalMicroporous and Mesoporous Materials
Volume152
Les DOIs
étatPublié - 2012

Empreinte digitale

zirconium oxides
Zirconia
Coloring Agents
Dyes
Tuning
Porosity
dyes
tuning
alkoxides
Acetonitrile
porosity
Zirconium
Molecules
acetonitrile
Water
water
Adsorption
molecules
decontamination
adsorption

Citer ceci

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title = "Tuning the structure of a hierarchically porous ZrO2 for dye molecule depollution",
abstract = "A novel strategy that tailors porous zirconia structures via a control of zirconium alkoxide reactivities has been developed. This control was achieved by limiting the amount of water present in the system through the use of an acetonitrile medium. Varying the amount of water present during the reaction has led to a better understanding of the self-formation phenomenon of hierarchical porosity. The choice of zirconium alkoxide precursor has also been studied. The porosity of the zirconia can be altered simply by tuning the water:acetonitrile ratio. A significant change in the porous structure has been observed with increasing water content. This revelation has led to a better understanding of the formation of hierarchically porous structures and the development of a very efficient and simple method to tailor hierarchical porosity over different length scales. The synthesized zirconia products, with differing porous structures, showed a very high adsorption capacity for dye molecules in aqueous solution. A relationship between the porous structure and the adsorption capacity of dye molecules has been evidenced, suggesting their potential application in water treatment as decontamination materials.",
author = "X.-Y. Li and L.-H. Chen and Y. Li and J.C. Rooke and Z. Deng and Z.-Y. Hu and J. Liu and A. Krief and X.-Y. Yang and B.-L. Su",
year = "2012",
doi = "10.1016/j.micromeso.2011.11.050",
language = "English",
volume = "152",
pages = "110--121",
journal = "Microporous and Mesoporous Materials",
issn = "1387-1811",
publisher = "Elsevier",

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TY - JOUR

T1 - Tuning the structure of a hierarchically porous ZrO2 for dye molecule depollution

AU - Li, X.-Y.

AU - Chen, L.-H.

AU - Li, Y.

AU - Rooke, J.C.

AU - Deng, Z.

AU - Hu, Z.-Y.

AU - Liu, J.

AU - Krief, A.

AU - Yang, X.-Y.

AU - Su, B.-L.

PY - 2012

Y1 - 2012

N2 - A novel strategy that tailors porous zirconia structures via a control of zirconium alkoxide reactivities has been developed. This control was achieved by limiting the amount of water present in the system through the use of an acetonitrile medium. Varying the amount of water present during the reaction has led to a better understanding of the self-formation phenomenon of hierarchical porosity. The choice of zirconium alkoxide precursor has also been studied. The porosity of the zirconia can be altered simply by tuning the water:acetonitrile ratio. A significant change in the porous structure has been observed with increasing water content. This revelation has led to a better understanding of the formation of hierarchically porous structures and the development of a very efficient and simple method to tailor hierarchical porosity over different length scales. The synthesized zirconia products, with differing porous structures, showed a very high adsorption capacity for dye molecules in aqueous solution. A relationship between the porous structure and the adsorption capacity of dye molecules has been evidenced, suggesting their potential application in water treatment as decontamination materials.

AB - A novel strategy that tailors porous zirconia structures via a control of zirconium alkoxide reactivities has been developed. This control was achieved by limiting the amount of water present in the system through the use of an acetonitrile medium. Varying the amount of water present during the reaction has led to a better understanding of the self-formation phenomenon of hierarchical porosity. The choice of zirconium alkoxide precursor has also been studied. The porosity of the zirconia can be altered simply by tuning the water:acetonitrile ratio. A significant change in the porous structure has been observed with increasing water content. This revelation has led to a better understanding of the formation of hierarchically porous structures and the development of a very efficient and simple method to tailor hierarchical porosity over different length scales. The synthesized zirconia products, with differing porous structures, showed a very high adsorption capacity for dye molecules in aqueous solution. A relationship between the porous structure and the adsorption capacity of dye molecules has been evidenced, suggesting their potential application in water treatment as decontamination materials.

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U2 - 10.1016/j.micromeso.2011.11.050

DO - 10.1016/j.micromeso.2011.11.050

M3 - Article

VL - 152

SP - 110

EP - 121

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

SN - 1387-1811

ER -