Luminophore-immobilized mesoporous silica for selective Hg2+ sensing

Min Hee Lee; Soo Jin Lee; Jong Hwa Jung; Heungbin Lim; Jong Seung Kim

doi:10.1016/j.tet.2007.08.113

Luminophore-immobilized mesoporous silica for selective Hg²⁺ sensing

Min Hee Lee, Soo Jin Lee, Jong Hwa Jung, Heungbin Lim, Jong Seung Kim

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

104 Citations (Scopus)

Abstract

Novel mesoporous silica-immobilized rhodamine (MSIR) and silica particle-immobilized rhodamine (SPIR) anchored by a tren (N(CH₂CH₂NH₂)₃) were synthesized. The binding and adsorption abilities of both MSIR and SPIR for metal cations were investigated with fluorophotometry and ion chromatography, respectively. Both MSIR and SPIR show selectivity for Hg²⁺ ion over other metal cations because the Hg²⁺ ion selectively induces a ring opening of the rhodamine fluorophores. The sensitivity of the MSIR for Hg²⁺ ion is greater than that of the SPIR and the MSIR adsorbs 70% of Hg²⁺ ion while the SPIR does only 40%. The MSIR can be also easily recovered by treatment of a solution of TBA⁺OH^-. For the application of Hg²⁺ detection in the environmental field, the MSIR-coated glass plate is also developed and exhibits an excellent function in visual and fluorescence changes with Hg²⁺ ion.

Original language	English
Pages (from-to)	12087-12092
Number of pages	6
Journal	Tetrahedron
Volume	63
Issue number	48
DOIs	https://doi.org/10.1016/j.tet.2007.08.113
Publication status	Published - 2007 Nov 26

Bibliographical note

Funding Information:
This work was supported by the SRC program (R11-2005-008-02001-0(2006)) and KOSEF (R01-2005-000-10229-0). In addition, this work was partially supported by Korea Ministry of Environments as ‘The Eco-technopia 21 Project’.

Keywords

Mercury sensing
Mesoporous silica
Rhodamine

ASJC Scopus subject areas

Biochemistry
Drug Discovery
Organic Chemistry

Access to Document

10.1016/j.tet.2007.08.113

Cite this

@article{11a86ec81ed34ed682c8df6cf342bfc0,

title = "Luminophore-immobilized mesoporous silica for selective Hg2+ sensing",

abstract = "Novel mesoporous silica-immobilized rhodamine (MSIR) and silica particle-immobilized rhodamine (SPIR) anchored by a tren (N(CH2CH2NH2)3) were synthesized. The binding and adsorption abilities of both MSIR and SPIR for metal cations were investigated with fluorophotometry and ion chromatography, respectively. Both MSIR and SPIR show selectivity for Hg2+ ion over other metal cations because the Hg2+ ion selectively induces a ring opening of the rhodamine fluorophores. The sensitivity of the MSIR for Hg2+ ion is greater than that of the SPIR and the MSIR adsorbs 70% of Hg2+ ion while the SPIR does only 40%. The MSIR can be also easily recovered by treatment of a solution of TBA+OH-. For the application of Hg2+ detection in the environmental field, the MSIR-coated glass plate is also developed and exhibits an excellent function in visual and fluorescence changes with Hg2+ ion.",

keywords = "Mercury sensing, Mesoporous silica, Rhodamine",

author = "Lee, {Min Hee} and Lee, {Soo Jin} and Jung, {Jong Hwa} and Heungbin Lim and Kim, {Jong Seung}",

note = "Funding Information: This work was supported by the SRC program (R11-2005-008-02001-0(2006)) and KOSEF (R01-2005-000-10229-0). In addition, this work was partially supported by Korea Ministry of Environments as {\textquoteleft}The Eco-technopia 21 Project{\textquoteright}. ",

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doi = "10.1016/j.tet.2007.08.113",

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T1 - Luminophore-immobilized mesoporous silica for selective Hg2+ sensing

AU - Lee, Min Hee

AU - Lee, Soo Jin

AU - Jung, Jong Hwa

AU - Lim, Heungbin

AU - Kim, Jong Seung

N1 - Funding Information: This work was supported by the SRC program (R11-2005-008-02001-0(2006)) and KOSEF (R01-2005-000-10229-0). In addition, this work was partially supported by Korea Ministry of Environments as ‘The Eco-technopia 21 Project’.

PY - 2007/11/26

Y1 - 2007/11/26

N2 - Novel mesoporous silica-immobilized rhodamine (MSIR) and silica particle-immobilized rhodamine (SPIR) anchored by a tren (N(CH2CH2NH2)3) were synthesized. The binding and adsorption abilities of both MSIR and SPIR for metal cations were investigated with fluorophotometry and ion chromatography, respectively. Both MSIR and SPIR show selectivity for Hg2+ ion over other metal cations because the Hg2+ ion selectively induces a ring opening of the rhodamine fluorophores. The sensitivity of the MSIR for Hg2+ ion is greater than that of the SPIR and the MSIR adsorbs 70% of Hg2+ ion while the SPIR does only 40%. The MSIR can be also easily recovered by treatment of a solution of TBA+OH-. For the application of Hg2+ detection in the environmental field, the MSIR-coated glass plate is also developed and exhibits an excellent function in visual and fluorescence changes with Hg2+ ion.

AB - Novel mesoporous silica-immobilized rhodamine (MSIR) and silica particle-immobilized rhodamine (SPIR) anchored by a tren (N(CH2CH2NH2)3) were synthesized. The binding and adsorption abilities of both MSIR and SPIR for metal cations were investigated with fluorophotometry and ion chromatography, respectively. Both MSIR and SPIR show selectivity for Hg2+ ion over other metal cations because the Hg2+ ion selectively induces a ring opening of the rhodamine fluorophores. The sensitivity of the MSIR for Hg2+ ion is greater than that of the SPIR and the MSIR adsorbs 70% of Hg2+ ion while the SPIR does only 40%. The MSIR can be also easily recovered by treatment of a solution of TBA+OH-. For the application of Hg2+ detection in the environmental field, the MSIR-coated glass plate is also developed and exhibits an excellent function in visual and fluorescence changes with Hg2+ ion.

KW - Mercury sensing

KW - Mesoporous silica

KW - Rhodamine

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