Titanium dioxide nanoparticles-based colorimetric sensors for determination of hydrogen peroxide and triacetone triperoxide (TATP)

Bahar Gökdere; Ayşem Üzer; Selen Durmazel; Erol Erçağ; Reşat Apak

doi:10.1016/j.talanta.2019.04.071

Titanium dioxide nanoparticles-based colorimetric sensors for determination of hydrogen peroxide and triacetone triperoxide (TATP)

Talanta. 2019 Sep 1:202:402-410. doi: 10.1016/j.talanta.2019.04.071. Epub 2019 May 1.

Authors

Bahar Gökdere¹, Ayşem Üzer¹, Selen Durmazel², Erol Erçağ³, Reşat Apak⁴

Affiliations

¹ Analytical Chemistry Division, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320 Avcilar, Istanbul, Turkey.
² Analytical Chemistry Division, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320 Avcilar, Istanbul, Turkey; Department of Chemistry, Institute of Graduate Studies, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey.
³ Aytar Caddesi, Fecri Ebcioğlu Sokak, No. 6/8, Levent, Istanbul, 34340, Turkey.
⁴ Analytical Chemistry Division, Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320 Avcilar, Istanbul, Turkey; Turkish Academy of Sciences (TUBA), Piyade St. No. 27, Çankaya, Ankara, 06690, Turkey. Electronic address: rapak@istanbul.edu.tr.

PMID: 31171201
DOI: 10.1016/j.talanta.2019.04.071

Abstract

Due to its relatively simple preparation and readily available precursors, determination of triacetone triperoxide (TATP) by portable devices has become important. In this work, two different titanium dioxide nanoparticles (TiO₂NPs)-based colorimetric sensors based on complex formation on the solid surface were developed for determination of H₂O₂ and TATP. The first sensor, (3-aminopropyl)triethoxysilane (APTES) modified-TiO₂NPs-based paper sensor (APTES@TiO₂NPs), exploits peroxo-titanate binary complex formation between APTES@TiO₂NPs and H₂O₂ on chromatographic paper. The second sensor, 4-(2-pyridylazo)-resorcinol-modified-TiO₂NPs-based solid sensor (PAR@TiO₂NPs), relies on the formation of a ternary complex between Ti(IV), PAR and H₂O₂. The developed sensors were also applied to TATP determination after acidic hydrolysis of samples to H₂O₂. The limits of detection (LODs) of APTES@TiO₂NPs-based paper sensor were 3.14 × 10^-4 and 5.13 × 10^-4 mol L^-1 for H₂O₂ and TATP, respectively, whereas the LODs of PAR@TiO₂NPs solid sensor were 6.06 × 10^-7 and 3.54 × 10^-7 mol L^-1 for H₂O₂ and TATP, respectively. Possible interferences of common soil ions, passenger belongings used as camouflage materials during public transport (e.g., detergent, sweetener, acetylsalicylic acid and paracetamol-caffeine based analgesic drugs) and of other explosives were examined. The developed methods were statistically validated using t- and F- tests against the titanyl sulfate (TiOSO₄) colorimetric literature method.

Keywords: Colorimetric sensor; Hydrogen peroxide; Reflectance spectroscopy; Titanium dioxide nanoparticles (TiO(2)NPs); Triacetone triperoxide (TATP).