Tailor-made dicationic ionic liquid as a fluorescent sensor for detection of hydroquinone and catechol

Sandip K. Patil; Suryakant A. Patil; Madagonda M. Vadiyar; Deepak V. Awale; Ashish S. Sartape; Laxman S. Walekar; Govind B. Kolekar; Uma V. Ghorpade; Jin H. Kim; Sanjay S. Kolekar

doi:10.1016/j.molliq.2017.08.119

Tailor-made dicationic ionic liquid as a fluorescent sensor for detection of hydroquinone and catechol

Sandip K. Patil, Suryakant A. Patil, Madagonda M. Vadiyar, Deepak V. Awale, Ashish S. Sartape, Laxman S. Walekar, Govind B. Kolekar, Uma V. Ghorpade, Jin H. Kim, Sanjay S. Kolekar

Department of Energy and Materials Engineering

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

70 Scopus citations

Abstract

We are exploring a geminal dicationic ionic liquid (DCIL), 1,1′-(propane-1,3-diyl)bis(4-aminopyridin-1-ium) dihydroxide, [C₃(Amp)₂][OH]₂ as a fluorescent probe for detection of dihydroxybenzenes viz. hydroquinone (HQ) and catechol (CC). Simple and sensitive spectrofluorometric method is described which accomplished with efficient quenching of fluorescence of aqueous DCIL by dihydroxybenzenes. The sensor offers good linear detection range of 1–400 μM and 1–1000 μM with detection limits of 0.31 μM and 0.40 μM for HQ and CC, respectively. Under alkaline conditions HQ/CC oxidizes to corresponding benzoquinones which interact with DCIL and consequently quenching of fluorescence is occurred. This essential alkaline condition is in situ provided by purposefully tuned DCIL to having basic nature. The plausible quenching mechanism that involves photo-induced charge transfer pathway is evidently discussed. The proposed method is competent over a broad detection range. Selectivity of method is demonstrated by scrutinizing intervention of various interfering species. Recoveries from water sample analysis emphasize the possible use of DCIL probe in the detection of HQ and CC from water sources. The proposed method certainly confers a new approach in sensing techniques for dihydroxybenzenes.

Original language	English
Pages (from-to)	39-45
Number of pages	7
Journal	Journal of Molecular Liquids
Volume	244
DOIs	https://doi.org/10.1016/j.molliq.2017.08.119
State	Published - Oct 2017

Keywords

Catechol
Dicationic ionic liquid
Dihydroxybenzenes
Fluorescence
Hydroquinone

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10.1016/j.molliq.2017.08.119

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@article{ea50fcc7975a468186b61a635a3210da,

title = "Tailor-made dicationic ionic liquid as a fluorescent sensor for detection of hydroquinone and catechol",

abstract = "We are exploring a geminal dicationic ionic liquid (DCIL), 1,1′-(propane-1,3-diyl)bis(4-aminopyridin-1-ium) dihydroxide, [C3(Amp)2][OH]2 as a fluorescent probe for detection of dihydroxybenzenes viz. hydroquinone (HQ) and catechol (CC). Simple and sensitive spectrofluorometric method is described which accomplished with efficient quenching of fluorescence of aqueous DCIL by dihydroxybenzenes. The sensor offers good linear detection range of 1–400 μM and 1–1000 μM with detection limits of 0.31 μM and 0.40 μM for HQ and CC, respectively. Under alkaline conditions HQ/CC oxidizes to corresponding benzoquinones which interact with DCIL and consequently quenching of fluorescence is occurred. This essential alkaline condition is in situ provided by purposefully tuned DCIL to having basic nature. The plausible quenching mechanism that involves photo-induced charge transfer pathway is evidently discussed. The proposed method is competent over a broad detection range. Selectivity of method is demonstrated by scrutinizing intervention of various interfering species. Recoveries from water sample analysis emphasize the possible use of DCIL probe in the detection of HQ and CC from water sources. The proposed method certainly confers a new approach in sensing techniques for dihydroxybenzenes.",

keywords = "Catechol, Dicationic ionic liquid, Dihydroxybenzenes, Fluorescence, Hydroquinone",

author = "Patil, {Sandip K.} and Patil, {Suryakant A.} and Vadiyar, {Madagonda M.} and Awale, {Deepak V.} and Sartape, {Ashish S.} and Walekar, {Laxman S.} and Kolekar, {Govind B.} and Ghorpade, {Uma V.} and Kim, {Jin H.} and Kolekar, {Sanjay S.}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = oct,

doi = "10.1016/j.molliq.2017.08.119",

language = "English",

volume = "244",

pages = "39--45",

journal = "Journal of Molecular Liquids",

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publisher = "Elsevier B.V.",

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T1 - Tailor-made dicationic ionic liquid as a fluorescent sensor for detection of hydroquinone and catechol

AU - Patil, Sandip K.

AU - Patil, Suryakant A.

AU - Vadiyar, Madagonda M.

AU - Awale, Deepak V.

AU - Sartape, Ashish S.

AU - Walekar, Laxman S.

AU - Kolekar, Govind B.

AU - Ghorpade, Uma V.

AU - Kim, Jin H.

AU - Kolekar, Sanjay S.

PY - 2017/10

Y1 - 2017/10

N2 - We are exploring a geminal dicationic ionic liquid (DCIL), 1,1′-(propane-1,3-diyl)bis(4-aminopyridin-1-ium) dihydroxide, [C3(Amp)2][OH]2 as a fluorescent probe for detection of dihydroxybenzenes viz. hydroquinone (HQ) and catechol (CC). Simple and sensitive spectrofluorometric method is described which accomplished with efficient quenching of fluorescence of aqueous DCIL by dihydroxybenzenes. The sensor offers good linear detection range of 1–400 μM and 1–1000 μM with detection limits of 0.31 μM and 0.40 μM for HQ and CC, respectively. Under alkaline conditions HQ/CC oxidizes to corresponding benzoquinones which interact with DCIL and consequently quenching of fluorescence is occurred. This essential alkaline condition is in situ provided by purposefully tuned DCIL to having basic nature. The plausible quenching mechanism that involves photo-induced charge transfer pathway is evidently discussed. The proposed method is competent over a broad detection range. Selectivity of method is demonstrated by scrutinizing intervention of various interfering species. Recoveries from water sample analysis emphasize the possible use of DCIL probe in the detection of HQ and CC from water sources. The proposed method certainly confers a new approach in sensing techniques for dihydroxybenzenes.

AB - We are exploring a geminal dicationic ionic liquid (DCIL), 1,1′-(propane-1,3-diyl)bis(4-aminopyridin-1-ium) dihydroxide, [C3(Amp)2][OH]2 as a fluorescent probe for detection of dihydroxybenzenes viz. hydroquinone (HQ) and catechol (CC). Simple and sensitive spectrofluorometric method is described which accomplished with efficient quenching of fluorescence of aqueous DCIL by dihydroxybenzenes. The sensor offers good linear detection range of 1–400 μM and 1–1000 μM with detection limits of 0.31 μM and 0.40 μM for HQ and CC, respectively. Under alkaline conditions HQ/CC oxidizes to corresponding benzoquinones which interact with DCIL and consequently quenching of fluorescence is occurred. This essential alkaline condition is in situ provided by purposefully tuned DCIL to having basic nature. The plausible quenching mechanism that involves photo-induced charge transfer pathway is evidently discussed. The proposed method is competent over a broad detection range. Selectivity of method is demonstrated by scrutinizing intervention of various interfering species. Recoveries from water sample analysis emphasize the possible use of DCIL probe in the detection of HQ and CC from water sources. The proposed method certainly confers a new approach in sensing techniques for dihydroxybenzenes.

KW - Catechol

KW - Dicationic ionic liquid

KW - Dihydroxybenzenes

KW - Fluorescence

KW - Hydroquinone

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U2 - 10.1016/j.molliq.2017.08.119

DO - 10.1016/j.molliq.2017.08.119

M3 - Article

AN - SCOPUS:85028936458

SN - 0167-7322

VL - 244

SP - 39

EP - 45

JO - Journal of Molecular Liquids

JF - Journal of Molecular Liquids

ER -

Tailor-made dicationic ionic liquid as a fluorescent sensor for detection of hydroquinone and catechol

Abstract

Keywords

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