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

39 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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@article{20b2510f507f4dc089ff14e085a94a6e,

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",

issn = "0169-1317",

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

UR - https://www.scopus.com/pages/publications/84908200989

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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