Organic dye adsorption on mesoporous hybrid gels

Zhijian Wu; Hyeonwoo Joo; Ik Sung Ahn; Seungjoo Haam; Jung Hyun Kim; Kangtaek Lee

doi:10.1016/j.cej.2004.05.008

Organic dye adsorption on mesoporous hybrid gels

Zhijian Wu, Hyeonwoo Joo, Ik Sung Ahn, Seungjoo Haam, Jung Hyun Kim, Kangtaek Lee

Department of Chemical and Biomolecular Engineering

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

84 Citations (Scopus)

Abstract

Adsorption of two organic dyes (alizarin red S and phenol red) on mesoporous silica and hybrid gels is investigated. The mesoporous gels are derived from tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), vinyltriethoxysilane (VTES), propyltriethoxysilane (PTES), and phenyltriethoxysilane (PhTES). The experimental results demonstrate that the adsorption capacity of the hybrid gels is much higher than that of the pure silica gel and increases as the gel surface becomes more hydrophobic. This suggests that the organic dye adsorption is governed mainly by the hydrophobic interaction between the organic dyes and the gel surface. Langmuir and Toth isotherm models are also tested against the experimental isotherm data.

Original language	English
Pages (from-to)	277-282
Number of pages	6
Journal	Chemical Engineering Journal
Volume	102
Issue number	3
DOIs	https://doi.org/10.1016/j.cej.2004.05.008
Publication status	Published - 2004 Sept 15

Bibliographical note

Funding Information:
This work was financially supported by the Korea Research Foundation Grant (KRF-2003-005-D00001).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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10.1016/j.cej.2004.05.008

Cite this

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title = "Organic dye adsorption on mesoporous hybrid gels",

abstract = "Adsorption of two organic dyes (alizarin red S and phenol red) on mesoporous silica and hybrid gels is investigated. The mesoporous gels are derived from tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), vinyltriethoxysilane (VTES), propyltriethoxysilane (PTES), and phenyltriethoxysilane (PhTES). The experimental results demonstrate that the adsorption capacity of the hybrid gels is much higher than that of the pure silica gel and increases as the gel surface becomes more hydrophobic. This suggests that the organic dye adsorption is governed mainly by the hydrophobic interaction between the organic dyes and the gel surface. Langmuir and Toth isotherm models are also tested against the experimental isotherm data.",

author = "Zhijian Wu and Hyeonwoo Joo and Ahn, {Ik Sung} and Seungjoo Haam and Kim, {Jung Hyun} and Kangtaek Lee",

note = "Funding Information: This work was financially supported by the Korea Research Foundation Grant (KRF-2003-005-D00001).",

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doi = "10.1016/j.cej.2004.05.008",

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T1 - Organic dye adsorption on mesoporous hybrid gels

AU - Wu, Zhijian

AU - Joo, Hyeonwoo

AU - Ahn, Ik Sung

AU - Haam, Seungjoo

AU - Kim, Jung Hyun

AU - Lee, Kangtaek

N1 - Funding Information: This work was financially supported by the Korea Research Foundation Grant (KRF-2003-005-D00001).

PY - 2004/9/15

Y1 - 2004/9/15

N2 - Adsorption of two organic dyes (alizarin red S and phenol red) on mesoporous silica and hybrid gels is investigated. The mesoporous gels are derived from tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), vinyltriethoxysilane (VTES), propyltriethoxysilane (PTES), and phenyltriethoxysilane (PhTES). The experimental results demonstrate that the adsorption capacity of the hybrid gels is much higher than that of the pure silica gel and increases as the gel surface becomes more hydrophobic. This suggests that the organic dye adsorption is governed mainly by the hydrophobic interaction between the organic dyes and the gel surface. Langmuir and Toth isotherm models are also tested against the experimental isotherm data.

AB - Adsorption of two organic dyes (alizarin red S and phenol red) on mesoporous silica and hybrid gels is investigated. The mesoporous gels are derived from tetraethoxysilane (TEOS), methyltriethoxysilane (MTES), vinyltriethoxysilane (VTES), propyltriethoxysilane (PTES), and phenyltriethoxysilane (PhTES). The experimental results demonstrate that the adsorption capacity of the hybrid gels is much higher than that of the pure silica gel and increases as the gel surface becomes more hydrophobic. This suggests that the organic dye adsorption is governed mainly by the hydrophobic interaction between the organic dyes and the gel surface. Langmuir and Toth isotherm models are also tested against the experimental isotherm data.

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Organic dye adsorption on mesoporous hybrid gels

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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