The key to control Cu II loading in silica based mesoporous materials

Nancy Brodie-Linder; Regis Besse; Fabrice Audonnet; Sophie LeCaer; Johnny Deschamps; Marianne Impéror-Clerc; Christiane Alba-Simionesco

doi:10.1016/j.micromeso.2010.04.001

The key to control Cu II loading in silica based mesoporous materials

Nancy Brodie-Linder, Regis Besse, Fabrice Audonnet, Sophie LeCaer, Johnny Deschamps, Marianne Impéror-Clerc, Christiane Alba-Simionesco

Research output: Contribution to journal › Article › peer-review

Abstract

Cu II loading on porous silica surfaces has been shown in the past to be easy to perform but no precise control on the amount of copper loaded has been elucidated. Here, controlled Cu II loading can be accomplished at ambient temperature in a reaction time of 10 min for loadings of 6-20% Cu (w/w). Analysis by UV-visible spectroscopy of copper uptake in SBA-15 materials has shown that the pH of the solution and the consequent complexation of the Cu II cation dictates the amount of Cu (II) impregnation. The key to the success of this control is the presence of the [Cu(NH₃)₃(H₂O)₃]²⁺ complex in the reaction solution. FT-IR, diffuse reflectance UV-visible spectroscopy, N₂ adsorption, TEM (transmission electronic microscopy) and SAXS (small angle X-ray scattering) analyses were performed on the obtained SBA-15 Cu materials illustrating a well dispersed Cu (II) covering of the SBA-15 surface.

Original language	English
Pages (from-to)	518-525
Number of pages	8
Journal	Microporous and Mesoporous Materials
Volume	132
Issue number	3
DOIs	https://doi.org/10.1016/j.micromeso.2010.04.001
Publication status	Published - 1 Jan 2010
Externally published	Yes

Keywords

Adsorption
Copper speciation
IR spectroscopy
Mesoporous materials

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10.1016/j.micromeso.2010.04.001

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title = "The key to control Cu II loading in silica based mesoporous materials",

abstract = "Cu II loading on porous silica surfaces has been shown in the past to be easy to perform but no precise control on the amount of copper loaded has been elucidated. Here, controlled Cu II loading can be accomplished at ambient temperature in a reaction time of 10 min for loadings of 6-20\% Cu (w/w). Analysis by UV-visible spectroscopy of copper uptake in SBA-15 materials has shown that the pH of the solution and the consequent complexation of the Cu II cation dictates the amount of Cu (II) impregnation. The key to the success of this control is the presence of the [Cu(NH3)3(H2O)3]2+ complex in the reaction solution. FT-IR, diffuse reflectance UV-visible spectroscopy, N2 adsorption, TEM (transmission electronic microscopy) and SAXS (small angle X-ray scattering) analyses were performed on the obtained SBA-15 Cu materials illustrating a well dispersed Cu (II) covering of the SBA-15 surface.",

keywords = "Adsorption, Copper speciation, IR spectroscopy, Mesoporous materials",

author = "Nancy Brodie-Linder and Regis Besse and Fabrice Audonnet and Sophie LeCaer and Johnny Deschamps and Marianne Imp{\'e}ror-Clerc and Christiane Alba-Simionesco",

year = "2010",

month = jan,

day = "1",

doi = "10.1016/j.micromeso.2010.04.001",

language = "English",

volume = "132",

pages = "518--525",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

number = "3",

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TY - JOUR

T1 - The key to control Cu II loading in silica based mesoporous materials

AU - Brodie-Linder, Nancy

AU - Besse, Regis

AU - Audonnet, Fabrice

AU - LeCaer, Sophie

AU - Deschamps, Johnny

AU - Impéror-Clerc, Marianne

AU - Alba-Simionesco, Christiane

PY - 2010/1/1

Y1 - 2010/1/1

N2 - Cu II loading on porous silica surfaces has been shown in the past to be easy to perform but no precise control on the amount of copper loaded has been elucidated. Here, controlled Cu II loading can be accomplished at ambient temperature in a reaction time of 10 min for loadings of 6-20% Cu (w/w). Analysis by UV-visible spectroscopy of copper uptake in SBA-15 materials has shown that the pH of the solution and the consequent complexation of the Cu II cation dictates the amount of Cu (II) impregnation. The key to the success of this control is the presence of the [Cu(NH3)3(H2O)3]2+ complex in the reaction solution. FT-IR, diffuse reflectance UV-visible spectroscopy, N2 adsorption, TEM (transmission electronic microscopy) and SAXS (small angle X-ray scattering) analyses were performed on the obtained SBA-15 Cu materials illustrating a well dispersed Cu (II) covering of the SBA-15 surface.

AB - Cu II loading on porous silica surfaces has been shown in the past to be easy to perform but no precise control on the amount of copper loaded has been elucidated. Here, controlled Cu II loading can be accomplished at ambient temperature in a reaction time of 10 min for loadings of 6-20% Cu (w/w). Analysis by UV-visible spectroscopy of copper uptake in SBA-15 materials has shown that the pH of the solution and the consequent complexation of the Cu II cation dictates the amount of Cu (II) impregnation. The key to the success of this control is the presence of the [Cu(NH3)3(H2O)3]2+ complex in the reaction solution. FT-IR, diffuse reflectance UV-visible spectroscopy, N2 adsorption, TEM (transmission electronic microscopy) and SAXS (small angle X-ray scattering) analyses were performed on the obtained SBA-15 Cu materials illustrating a well dispersed Cu (II) covering of the SBA-15 surface.

KW - Adsorption

KW - Copper speciation

KW - IR spectroscopy

KW - Mesoporous materials

U2 - 10.1016/j.micromeso.2010.04.001

DO - 10.1016/j.micromeso.2010.04.001

M3 - Article

AN - SCOPUS:77953292666

SN - 1387-1811

VL - 132

SP - 518

EP - 525

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

IS - 3

ER -

The key to control Cu II loading in silica based mesoporous materials

Abstract

Keywords

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