Adsorption of phosphate by amino-functionalized and co-condensed SBA-15

Jae Woo Choi; Seung Yeon Lee; Sang Hyup Lee; Ki Bong Lee; Dong Ju Kim; Seok Won Hong

doi:10.1007/s11270-011-1047-7

Adsorption of phosphate by amino-functionalized and co-condensed SBA-15

Jae Woo Choi, Seung Yeon Lee, Sang Hyup Lee, Ki Bong Lee, Dong Ju Kim, Seok Won Hong

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

25 Citations (Scopus)

Abstract

In this study, the applications of mesoporous materials based on silica, and those with modifications, namely post-synthetic grafting, co-condensation, and pure SBA-15, were investigated for the removal of phosphate from sewage. The mesostructures were confirmed by X-ray diffraction, Brunauer-Emmett-Teller, Fourier transform infrared spectroscopy, and transmission electron microscopy. The absorption of phosphate by the mesoporous adsorbents was examined, using different adsorption models to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructured adsorbents were found to be 69.970, 59.890, and 2.018 mg/g for the co-condensation, post-synthetic grafting, and pure SBA-15, respectively. The kinetic data showed that the adsorption of phosphate onto three different mesostructures followed the pseudo-first-order kinetic model.

Original language	English
Pages (from-to)	2551-2562
Number of pages	12
Journal	Water, Air, and Soil Pollution
Volume	223
Issue number	5
DOIs	https://doi.org/10.1007/s11270-011-1047-7
Publication status	Published - 2012 Jun

Bibliographical note

Funding Information:
Acknowledgments The subject is supported by the Korea Ministry of Environment as “Global Top Project” (project no.: GT-11-B-01-011-1).

Keywords

Amino-functionalized
Co-condensation
Grafting
Mesoporous silica
Phosphate
SBA-15

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Ecological Modelling
Water Science and Technology
Pollution

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title = "Adsorption of phosphate by amino-functionalized and co-condensed SBA-15",

abstract = "In this study, the applications of mesoporous materials based on silica, and those with modifications, namely post-synthetic grafting, co-condensation, and pure SBA-15, were investigated for the removal of phosphate from sewage. The mesostructures were confirmed by X-ray diffraction, Brunauer-Emmett-Teller, Fourier transform infrared spectroscopy, and transmission electron microscopy. The absorption of phosphate by the mesoporous adsorbents was examined, using different adsorption models to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructured adsorbents were found to be 69.970, 59.890, and 2.018 mg/g for the co-condensation, post-synthetic grafting, and pure SBA-15, respectively. The kinetic data showed that the adsorption of phosphate onto three different mesostructures followed the pseudo-first-order kinetic model.",

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author = "Choi, {Jae Woo} and Lee, {Seung Yeon} and Lee, {Sang Hyup} and Lee, {Ki Bong} and Kim, {Dong Ju} and Hong, {Seok Won}",

note = "Funding Information: Acknowledgments The subject is supported by the Korea Ministry of Environment as “Global Top Project” (project no.: GT-11-B-01-011-1).",

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AU - Lee, Seung Yeon

AU - Lee, Sang Hyup

AU - Lee, Ki Bong

AU - Kim, Dong Ju

AU - Hong, Seok Won

N1 - Funding Information: Acknowledgments The subject is supported by the Korea Ministry of Environment as “Global Top Project” (project no.: GT-11-B-01-011-1).

PY - 2012/6

Y1 - 2012/6

N2 - In this study, the applications of mesoporous materials based on silica, and those with modifications, namely post-synthetic grafting, co-condensation, and pure SBA-15, were investigated for the removal of phosphate from sewage. The mesostructures were confirmed by X-ray diffraction, Brunauer-Emmett-Teller, Fourier transform infrared spectroscopy, and transmission electron microscopy. The absorption of phosphate by the mesoporous adsorbents was examined, using different adsorption models to describe the equilibrium and kinetic data. The maximum adsorption capacities of the mesostructured adsorbents were found to be 69.970, 59.890, and 2.018 mg/g for the co-condensation, post-synthetic grafting, and pure SBA-15, respectively. The kinetic data showed that the adsorption of phosphate onto three different mesostructures followed the pseudo-first-order kinetic model.

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Adsorption of phosphate by amino-functionalized and co-condensed SBA-15

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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