Determination of adsorptive and catalytic properties of copper, silver and iron contain titanium-pillared bentonite for the removal bisphenol A from aqueous solution

Determination of adsorptive and catalytic properties of copper, silver and iron contain... Article history: Ti-pillared bentonite, Cu, Ag and Fe modified Ti-pillared bentonite and Cu/Ti- and Fe/Ti-mixed pillared Received 14 May 2015 bentonite were synthesized using different titanium sources by direct synthesis or by modification after Received in revised form 24 October 2015 synthesis. The effects of synthesis conditions on the surface characteristics, pore structure and acidity Accepted 30 October 2015 of the pillared bentonites were investigated by SEM–EDS, XPS, XRD, N -adsorption/desorption and FTIR Available online 3 November 2015 analyses before and after ammonia adsorption. The results of EDS, XPS and XRD analysis confirmed that titanium, copper, silver and iron were incorporated into the bentonite structure. In the XRD patterns, Keywords: the formation of delaminated structure reflecting the non-parallel distribution of the bentonite layers by Ti-pillared bentonite pillaring with Ti, Cu/Ti and Fe/Ti-pillars was observed. XPS spectra indicated the presence of TiO , CuO, Copper Ag and Ag O and Fe O species depending on the source of active metals in the synthesized samples. 2 2 3 Silver and iron In the FTIR spectra, an increase in the Bronsted/Lewis peak intensity was observed with the loading of Impregnation copper and iron, whereas a decrease in Lewis and Bronsted acidities was http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Surface Science Elsevier

Determination of adsorptive and catalytic properties of copper, silver and iron contain titanium-pillared bentonite for the removal bisphenol A from aqueous solution

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier B.V.
ISSN
0169-4332
eISSN
1873-5584
D.O.I.
10.1016/j.apsusc.2015.10.228
Publisher site
See Article on Publisher Site

Abstract

Article history: Ti-pillared bentonite, Cu, Ag and Fe modified Ti-pillared bentonite and Cu/Ti- and Fe/Ti-mixed pillared Received 14 May 2015 bentonite were synthesized using different titanium sources by direct synthesis or by modification after Received in revised form 24 October 2015 synthesis. The effects of synthesis conditions on the surface characteristics, pore structure and acidity Accepted 30 October 2015 of the pillared bentonites were investigated by SEM–EDS, XPS, XRD, N -adsorption/desorption and FTIR Available online 3 November 2015 analyses before and after ammonia adsorption. The results of EDS, XPS and XRD analysis confirmed that titanium, copper, silver and iron were incorporated into the bentonite structure. In the XRD patterns, Keywords: the formation of delaminated structure reflecting the non-parallel distribution of the bentonite layers by Ti-pillared bentonite pillaring with Ti, Cu/Ti and Fe/Ti-pillars was observed. XPS spectra indicated the presence of TiO , CuO, Copper Ag and Ag O and Fe O species depending on the source of active metals in the synthesized samples. 2 2 3 Silver and iron In the FTIR spectra, an increase in the Bronsted/Lewis peak intensity was observed with the loading of Impregnation copper and iron, whereas a decrease in Lewis and Bronsted acidities was

Journal

Applied Surface ScienceElsevier

Published: Jan 1, 2016

References

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