Ethylenediamine-bound magnetite nanoparticles as dual function colorimetric sensor having charge transfer and nanozyme activity for TNT and tetryl detection
Yazarlar (5)
Öğr. Gör. Batuhan Yardımcı Istanbul University-Cerrahpasa, Türkiye
Ömer Kaan Koç
Istanbul University-Cerrahpasa, Türkiye
Ayşem Üzer
Istanbul University-Cerrahpasa, Türkiye
Prof. Dr. Fehime Jülide HIZAL YÜCESOY Yalova Üniversitesi, Türkiye
Reşat Apak
Istanbul University-Cerrahpasa, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Microchimica Acta (Q1)
Dergi ISSN 0026-3672 Dergi Bilgileri (2021)
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce Basım Tarihi 07-2021
Kabul Tarihi 25-05-2021 Yayınlanma Tarihi 11-06-2021
Cilt / Sayı / Sayfa 188 / 7 / 228– DOI 10.1007/s00604-021-04877-z
Makale Linki http://dx.doi.org/10.1007/s00604-021-04877-z
UAK Araştırma Alanları
Analitik Kimya Fiziksel Kimya Spektroskopi
Özet
A reusable, low–cost, and convenient ethylenediamine (EDA)–bound magnetite nanoparticles (MNPs)–based colorimetric sensor has been developed for dual function colorimetric determination of nitroaromatic explosives such as TNT and tetryl. Colorimetric detection of analytes may occur through two independent routes: (1) nano−Fe3O4− EDA− NH2 as σ−donor may interact with the σ− and π−acceptor aromatic−poly(NO2) groups to produce a colored charge−transfer (CT) complex; (2) nano−Fe3O4−EDA−NH2 as a Fenton-type nanozyme may generate reactive species that comprise hydroxyl radicals (•OH) with H2O2 to oxidize 3,3′,5,5′–tetramethylbenzidine (TMB) to a blue-colored diimine (oxTMB−TMB) CT complex, where this color is bleached with TNT/tetryl because of donor−acceptor interactions between the explosive –NO2 groups and the –NH2 group of Fe3O4−EDA nanoparticles of restricted nanozyme activity. Both methods can quantify TNT well below the EPA recommended TNT residential screening level in soil, LOD being in the micromolar range. As EDA was covalently bound to MNPs, the same sensor can be separately reused six times for TNT and eight times for tetryl determination, using method (1). Common metal ions, anions, energetic materials, several camouflage materials, and soil components such as humates did not interfere with the nanosensor performance for TNT and tetryl. The combination of charge−transfer and nanozyme ability of Fe3O4− EDA−NH2 nanoparticles may bring a new approach to dual function colorimetric sensor design. To the best of our knowledge, this is the first dual function colorimetric sensor for TNT and tetryl using the same nanoparticles as sensing elements in two different detection systems involving either formation or bleaching of colored species. Graphical abstract: [Figure not available: see fulltext.]
Anahtar Kelimeler
Amine functionalized nanoparticles | Charge–transfer complex | Dual function colorimetric sensor | Nitroaromatic explosives | Spectrophotometric determination
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BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Yöksis 13
Web of Science 10
Scopus 10
PubMed 2
Ethylenediamine-bound magnetite nanoparticles as dual function colorimetric sensor having charge transfer and nanozyme activity for TNT and tetryl detection
İletişim
  • Yalova Üniversitesi Rektörlüğü, Bahçelievler Mah. Çınarcık Yolu Caddesi No: 26 Merkez - YALOVA, 77200
  • unis@yalova.edu.tr 0226 815 50 00
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