Preparation of Graphene oxide- CuInS2/ZnS Quantum dots Nanocomposite as “Turn-On” Fluorescent Probe for the Detection of Polycyclic Aromatic Hydrocarbons in Aqueous Medium

Rodney Maluleke; Sundararajan Parani; Oluwatobi S. Oluwafemi

doi:10.1007/s10895-021-02761-w

Preparation of Graphene oxide- CuInS₂/ZnS Quantum dots Nanocomposite as “Turn-On” Fluorescent Probe for the Detection of Polycyclic Aromatic Hydrocarbons in Aqueous Medium

Rodney Maluleke, Sundararajan Parani, Oluwatobi S. Oluwafemi

Chemical Sciences

University of Johannesburg

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

3 Citations (Scopus)

Abstract

Graphene oxide is well known for its adsorption properties with aromatic compounds. In this study, graphene oxide and eco-friendly ternary CuInS₂/ZnS QDs were used to prepare graphene oxide-qunatum dots (GO-QDs) nanocomposite via in-situ method. The composite was characterized using ultraviolet–visible (UV–Vis) spectroscopy, photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM) and Fourier transform infrared (FT-IR) spectroscopy. The effect of the polycyclic aromatic hydrocarbons (PAHs) on the PL properties of the nanocomposite was investigated. The results showed that the addition of PAHs increased the PL intensity of the nanocomposite. This “turn-on” fluorescence approach can be used for the successful detection of PAHs in aqueous media.

Original language	English
Pages (from-to)	1297-1302
Number of pages	6
Journal	Journal of Fluorescence
Volume	31
Issue number	5
DOIs	https://doi.org/10.1007/s10895-021-02761-w
Publication status	Published - Sept 2021

Keywords

Fluorescence
Graphene oxide
Polycyclic aromatic hydrocarbons
Quantum dots
Sensing

ASJC Scopus subject areas

Biochemistry
Spectroscopy
Clinical Biochemistry

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10.1007/s10895-021-02761-w

Cite this

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title = "Preparation of Graphene oxide- CuInS2/ZnS Quantum dots Nanocomposite as “Turn-On” Fluorescent Probe for the Detection of Polycyclic Aromatic Hydrocarbons in Aqueous Medium",

abstract = "Graphene oxide is well known for its adsorption properties with aromatic compounds. In this study, graphene oxide and eco-friendly ternary CuInS2/ZnS QDs were used to prepare graphene oxide-qunatum dots (GO-QDs) nanocomposite via in-situ method. The composite was characterized using ultraviolet–visible (UV–Vis) spectroscopy, photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM) and Fourier transform infrared (FT-IR) spectroscopy. The effect of the polycyclic aromatic hydrocarbons (PAHs) on the PL properties of the nanocomposite was investigated. The results showed that the addition of PAHs increased the PL intensity of the nanocomposite. This “turn-on” fluorescence approach can be used for the successful detection of PAHs in aqueous media.",

keywords = "Fluorescence, Graphene oxide, Polycyclic aromatic hydrocarbons, Quantum dots, Sensing",

author = "Rodney Maluleke and Sundararajan Parani and Oluwafemi, {Oluwatobi S.}",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.",

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Preparation of Graphene oxide- CuInS₂/ZnS Quantum dots Nanocomposite as “Turn-On” Fluorescent Probe for the Detection of Polycyclic Aromatic Hydrocarbons in Aqueous Medium. / Maluleke, Rodney; Parani, Sundararajan; Oluwafemi, Oluwatobi S.
In: Journal of Fluorescence, Vol. 31, No. 5, 09.2021, p. 1297-1302.

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

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T1 - Preparation of Graphene oxide- CuInS2/ZnS Quantum dots Nanocomposite as “Turn-On” Fluorescent Probe for the Detection of Polycyclic Aromatic Hydrocarbons in Aqueous Medium

AU - Maluleke, Rodney

AU - Parani, Sundararajan

AU - Oluwafemi, Oluwatobi S.

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AB - Graphene oxide is well known for its adsorption properties with aromatic compounds. In this study, graphene oxide and eco-friendly ternary CuInS2/ZnS QDs were used to prepare graphene oxide-qunatum dots (GO-QDs) nanocomposite via in-situ method. The composite was characterized using ultraviolet–visible (UV–Vis) spectroscopy, photoluminescence (PL) spectroscopy, transmission electron microscopy (TEM) and Fourier transform infrared (FT-IR) spectroscopy. The effect of the polycyclic aromatic hydrocarbons (PAHs) on the PL properties of the nanocomposite was investigated. The results showed that the addition of PAHs increased the PL intensity of the nanocomposite. This “turn-on” fluorescence approach can be used for the successful detection of PAHs in aqueous media.

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