Photoluminescent europium(III) complex intercalated in natural and synthetic clay minerals for enhanced latent fingerprint detection

Seung Jin Ryu; Aran Kim; Myung Duck Kim; Sung Wook Hong; Seung Sik Min; Jin Hoon Lee; Jin Kyu Lee; Hyun Jung

doi:10.1016/j.clay.2014.07.010

Photoluminescent europium(III) complex intercalated in natural and synthetic clay minerals for enhanced latent fingerprint detection

Seung Jin Ryu, Aran Kim, Myung Duck Kim, Sung Wook Hong, Seung Sik Min, Jin Hoon Lee, Jin Kyu Lee, Hyun Jung

Department of Chemistry

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

37 Scopus citations

Abstract

Fluorescent nanohybrid materials, europium(III) complex intercalated Na⁺-smectite clay minerals (synthetic hectorite and natural montmorillonite), have been developed to visualize latent fingerprints. The guest europium(III) complex ([EuCl₂(Phen)₂(H₂O)₂]Cl·H₂O) was obtained by simple complex reaction between europium chloride hexahydrate (EuCl₃·6H₂O) and 1,10-phenanthroline (Phen) as a 1:2 molar ratio of Eu³⁺ ion to ligand molecules. The intercalated nanohybrids ([Eu(Phen)₂]³⁺-clay minerals) were obtained through ion exchange reaction of interlayer sodium cation with europium complex ion. Guest europium(III) complex and [Eu(Phen)₂]³⁺-clay mineral hybrids were characterized by powder X-ray diffraction, Fourier transform infrared, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, UV-visible and fluorescence spectroscopy. The intercalated complex maintains a characteristic red ⁵D₀-⁷F₂ emission at wavelength 617nm, which is comparable to that of the free complex. The ⁵D₀-⁷F₂ emission intensity of [Eu(Phen)₂]³⁺-laponite was ca. 3.5 times higher than that of [Eu(Phen)₂]³⁺-montmorillonite, due to the presence of quenching impurities in natural montmorillonite itself. Fingerprint residues on glass slides were harvested by using [Eu(Phen)₂]³⁺-clay mineral powders, resulting in good definition for enhanced latent fingerprint detection. Particularly, [Eu(Phen)₂]³⁺-hectorite hybrid powder was more clearly separated from the background compared to the montmorillonite hybrid powder.

Original language	English
Pages (from-to)	52-59
Number of pages	8
Journal	Applied Clay Science
Volume	101
DOIs	https://doi.org/10.1016/j.clay.2014.07.010
State	Published - 1 Nov 2014

Keywords

Aluminosilicates
Europium
Intercalations
Luminescence
Organic-inorganic hybrid composites

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10.1016/j.clay.2014.07.010

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title = "Photoluminescent europium(III) complex intercalated in natural and synthetic clay minerals for enhanced latent fingerprint detection",

abstract = "Fluorescent nanohybrid materials, europium(III) complex intercalated Na+-smectite clay minerals (synthetic hectorite and natural montmorillonite), have been developed to visualize latent fingerprints. The guest europium(III) complex ([EuCl2(Phen)2(H2O)2]Cl·H2O) was obtained by simple complex reaction between europium chloride hexahydrate (EuCl3·6H2O) and 1,10-phenanthroline (Phen) as a 1:2 molar ratio of Eu3+ ion to ligand molecules. The intercalated nanohybrids ([Eu(Phen)2]3+-clay minerals) were obtained through ion exchange reaction of interlayer sodium cation with europium complex ion. Guest europium(III) complex and [Eu(Phen)2]3+-clay mineral hybrids were characterized by powder X-ray diffraction, Fourier transform infrared, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, UV-visible and fluorescence spectroscopy. The intercalated complex maintains a characteristic red 5D0-7F2 emission at wavelength 617nm, which is comparable to that of the free complex. The 5D0-7F2 emission intensity of [Eu(Phen)2]3+-laponite was ca. 3.5 times higher than that of [Eu(Phen)2]3+-montmorillonite, due to the presence of quenching impurities in natural montmorillonite itself. Fingerprint residues on glass slides were harvested by using [Eu(Phen)2]3+-clay mineral powders, resulting in good definition for enhanced latent fingerprint detection. Particularly, [Eu(Phen)2]3+-hectorite hybrid powder was more clearly separated from the background compared to the montmorillonite hybrid powder.",

keywords = "Aluminosilicates, Europium, Intercalations, Luminescence, Organic-inorganic hybrid composites",

author = "Ryu, {Seung Jin} and Aran Kim and Kim, {Myung Duck} and Hong, {Sung Wook} and Min, {Seung Sik} and Lee, {Jin Hoon} and Lee, {Jin Kyu} and Hyun Jung",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2014",

month = nov,

day = "1",

doi = "10.1016/j.clay.2014.07.010",

language = "English",

volume = "101",

pages = "52--59",

journal = "Applied Clay Science",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Photoluminescent europium(III) complex intercalated in natural and synthetic clay minerals for enhanced latent fingerprint detection

AU - Ryu, Seung Jin

AU - Kim, Aran

AU - Kim, Myung Duck

AU - Hong, Sung Wook

AU - Min, Seung Sik

AU - Lee, Jin Hoon

AU - Lee, Jin Kyu

AU - Jung, Hyun

PY - 2014/11/1

Y1 - 2014/11/1

N2 - Fluorescent nanohybrid materials, europium(III) complex intercalated Na+-smectite clay minerals (synthetic hectorite and natural montmorillonite), have been developed to visualize latent fingerprints. The guest europium(III) complex ([EuCl2(Phen)2(H2O)2]Cl·H2O) was obtained by simple complex reaction between europium chloride hexahydrate (EuCl3·6H2O) and 1,10-phenanthroline (Phen) as a 1:2 molar ratio of Eu3+ ion to ligand molecules. The intercalated nanohybrids ([Eu(Phen)2]3+-clay minerals) were obtained through ion exchange reaction of interlayer sodium cation with europium complex ion. Guest europium(III) complex and [Eu(Phen)2]3+-clay mineral hybrids were characterized by powder X-ray diffraction, Fourier transform infrared, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, UV-visible and fluorescence spectroscopy. The intercalated complex maintains a characteristic red 5D0-7F2 emission at wavelength 617nm, which is comparable to that of the free complex. The 5D0-7F2 emission intensity of [Eu(Phen)2]3+-laponite was ca. 3.5 times higher than that of [Eu(Phen)2]3+-montmorillonite, due to the presence of quenching impurities in natural montmorillonite itself. Fingerprint residues on glass slides were harvested by using [Eu(Phen)2]3+-clay mineral powders, resulting in good definition for enhanced latent fingerprint detection. Particularly, [Eu(Phen)2]3+-hectorite hybrid powder was more clearly separated from the background compared to the montmorillonite hybrid powder.

AB - Fluorescent nanohybrid materials, europium(III) complex intercalated Na+-smectite clay minerals (synthetic hectorite and natural montmorillonite), have been developed to visualize latent fingerprints. The guest europium(III) complex ([EuCl2(Phen)2(H2O)2]Cl·H2O) was obtained by simple complex reaction between europium chloride hexahydrate (EuCl3·6H2O) and 1,10-phenanthroline (Phen) as a 1:2 molar ratio of Eu3+ ion to ligand molecules. The intercalated nanohybrids ([Eu(Phen)2]3+-clay minerals) were obtained through ion exchange reaction of interlayer sodium cation with europium complex ion. Guest europium(III) complex and [Eu(Phen)2]3+-clay mineral hybrids were characterized by powder X-ray diffraction, Fourier transform infrared, thermogravimetry-differential thermal analysis (TG-DTA), elemental analysis, UV-visible and fluorescence spectroscopy. The intercalated complex maintains a characteristic red 5D0-7F2 emission at wavelength 617nm, which is comparable to that of the free complex. The 5D0-7F2 emission intensity of [Eu(Phen)2]3+-laponite was ca. 3.5 times higher than that of [Eu(Phen)2]3+-montmorillonite, due to the presence of quenching impurities in natural montmorillonite itself. Fingerprint residues on glass slides were harvested by using [Eu(Phen)2]3+-clay mineral powders, resulting in good definition for enhanced latent fingerprint detection. Particularly, [Eu(Phen)2]3+-hectorite hybrid powder was more clearly separated from the background compared to the montmorillonite hybrid powder.

KW - Aluminosilicates

KW - Europium

KW - Intercalations

KW - Luminescence

KW - Organic-inorganic hybrid composites

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U2 - 10.1016/j.clay.2014.07.010

DO - 10.1016/j.clay.2014.07.010

M3 - Article

AN - SCOPUS:84908200989

SN - 0169-1317

VL - 101

SP - 52

EP - 59

JO - Applied Clay Science

JF - Applied Clay Science

ER -

Photoluminescent europium(III) complex intercalated in natural and synthetic clay minerals for enhanced latent fingerprint detection

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Keywords

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