Self-adhesive graphene oxide-wrapped TiO2 nanoparticles for UV-activated colorimetric oxygen detection

Eun Jin Son; Joon Seok Lee; Minah Lee; Chau Hai Thai Vu; Hana Lee; Keehoon Won; Chan Beum Park

doi:10.1016/j.snb.2015.02.084

Self-adhesive graphene oxide-wrapped TiO₂ nanoparticles for UV-activated colorimetric oxygen detection

Eun Jin Son, Joon Seok Lee, Minah Lee, Chau Hai Thai Vu, Hana Lee, Keehoon Won, Chan Beum Park

Department of Chemical and Biochemical Engineering

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

26 Scopus citations

Abstract

We first report on the synthesis of graphene oxide-wrapped TiO₂ nanoparticles (GO-TiO₂ NPs) as a self-adhesive photocatalyst for UV-activated colorimetric oxygen detection. Methylene blue (MB), a redox dye for colorimetric oxygen indication, strongly adsorbed onto GO-TiO₂ NPs by both electrostatic and π-π stacking interactions. The chemical attraction between GO and MB significantly decreased dye leakage, which is a serious problem of colorimetric oxygen indicators; MB leaching from GO-TiO₂-based film was fivefold lower than that from conventional TiO₂-based film. This novel MB/GO-TiO₂/glycerol/hydroxyethyl cellulose film was successfully bleached by UV irradiation, and it regained its blue color rapidly in the presence of oxygen, demonstrating its useful functionality as a UV-activated colorimetric oxygen indicator.

Original language	English
Pages (from-to)	322-328
Number of pages	7
Journal	Sensors and Actuators B: Chemical
Volume	213
DOIs	https://doi.org/10.1016/j.snb.2015.02.084
State	Published - 5 Jul 2015

Keywords

Colorimetric oxygen sensing
Graphene oxide
Methylene blue
TiO nanoparticles
UV activation

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title = "Self-adhesive graphene oxide-wrapped TiO2 nanoparticles for UV-activated colorimetric oxygen detection",

abstract = "We first report on the synthesis of graphene oxide-wrapped TiO2 nanoparticles (GO-TiO2 NPs) as a self-adhesive photocatalyst for UV-activated colorimetric oxygen detection. Methylene blue (MB), a redox dye for colorimetric oxygen indication, strongly adsorbed onto GO-TiO2 NPs by both electrostatic and π-π stacking interactions. The chemical attraction between GO and MB significantly decreased dye leakage, which is a serious problem of colorimetric oxygen indicators; MB leaching from GO-TiO2-based film was fivefold lower than that from conventional TiO2-based film. This novel MB/GO-TiO2/glycerol/hydroxyethyl cellulose film was successfully bleached by UV irradiation, and it regained its blue color rapidly in the presence of oxygen, demonstrating its useful functionality as a UV-activated colorimetric oxygen indicator.",

keywords = "Colorimetric oxygen sensing, Graphene oxide, Methylene blue, TiO nanoparticles, UV activation",

author = "Son, {Eun Jin} and Lee, {Joon Seok} and Minah Lee and Vu, {Chau Hai Thai} and Hana Lee and Keehoon Won and Park, {Chan Beum}",

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journal = "Sensors and Actuators B: Chemical",

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T1 - Self-adhesive graphene oxide-wrapped TiO2 nanoparticles for UV-activated colorimetric oxygen detection

AU - Son, Eun Jin

AU - Lee, Joon Seok

AU - Lee, Minah

AU - Vu, Chau Hai Thai

AU - Lee, Hana

AU - Won, Keehoon

AU - Park, Chan Beum

PY - 2015/7/5

Y1 - 2015/7/5

N2 - We first report on the synthesis of graphene oxide-wrapped TiO2 nanoparticles (GO-TiO2 NPs) as a self-adhesive photocatalyst for UV-activated colorimetric oxygen detection. Methylene blue (MB), a redox dye for colorimetric oxygen indication, strongly adsorbed onto GO-TiO2 NPs by both electrostatic and π-π stacking interactions. The chemical attraction between GO and MB significantly decreased dye leakage, which is a serious problem of colorimetric oxygen indicators; MB leaching from GO-TiO2-based film was fivefold lower than that from conventional TiO2-based film. This novel MB/GO-TiO2/glycerol/hydroxyethyl cellulose film was successfully bleached by UV irradiation, and it regained its blue color rapidly in the presence of oxygen, demonstrating its useful functionality as a UV-activated colorimetric oxygen indicator.

AB - We first report on the synthesis of graphene oxide-wrapped TiO2 nanoparticles (GO-TiO2 NPs) as a self-adhesive photocatalyst for UV-activated colorimetric oxygen detection. Methylene blue (MB), a redox dye for colorimetric oxygen indication, strongly adsorbed onto GO-TiO2 NPs by both electrostatic and π-π stacking interactions. The chemical attraction between GO and MB significantly decreased dye leakage, which is a serious problem of colorimetric oxygen indicators; MB leaching from GO-TiO2-based film was fivefold lower than that from conventional TiO2-based film. This novel MB/GO-TiO2/glycerol/hydroxyethyl cellulose film was successfully bleached by UV irradiation, and it regained its blue color rapidly in the presence of oxygen, demonstrating its useful functionality as a UV-activated colorimetric oxygen indicator.

KW - Colorimetric oxygen sensing

KW - Graphene oxide

KW - Methylene blue

KW - TiO nanoparticles

KW - UV activation

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JO - Sensors and Actuators B: Chemical

JF - Sensors and Actuators B: Chemical

ER -

Self-adhesive graphene oxide-wrapped TiO₂ nanoparticles for UV-activated colorimetric oxygen detection

Abstract

Keywords

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