In-situ photochemical synthesis of Au nanoparticles in polymer matrix with one-component thioxanthone disulfide for detection of benzene, toluene and xylene vapours

Tuğçe Çinko, Umut Koyuncu, Birsel Can Ömür, Ahmet Altındal*, Nergis Arsu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Thioxanthonation of diphenyl units of diphenyl disulfide was achieved successfully. The photoreduction and photostabilization ability of 2, 2′-disulfanediylbis (9H-thioxanthen-9-one) was used for in-situ preparation of Au nanoparticles either in solution or in poly(ethylene glycol) methyl ether acrylate / poly(ethylene glycol) diacrylate polymer matrix. SPR(Surface Plasmon Resonance) absorption band of formed Au NPs were recorded at 550 nm by UV–vis spectroscopy. Indeed, formation of elliptical shaped nanoparticles (4–8 μm) as well as spherical ones (11–14 nm) in nanocomposite films were obtained depending on UV irradiation time. DLS (Dynamic Light Scattering) measurements also changed from 440 nm to about 200 nm as a function of irradiation time. The potential of Au NPs/ polymer nanocomposite film as a sensing element for benzene, toluene, xylene (BTX) sensing was studied at different temperatures. An overall evaluation of the experimental results showed that Au NPs/ polymer nanocomposite film has good potential as a sensing element for the detection of BTX vapours.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalProgress in Organic Coatings
Volume132
DOIs
Publication statusPublished - Jul 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019

Keywords

  • Gas sensors
  • Gold nanoparticle/polymer nanocomposites
  • Photopolymerization
  • Thioxanthone disulfide

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