Scopus
YÖKSİS Eşleşti
Spectrofluorometric determination of Fe3+, Pd2+, and Sn2+ ions using carbon nanodots derived from hazelnut shells
Methods and Applications in Fluorescence · Temmuz 2025
YÖKSİS Kayıtları
Spectrofluorometric determination of Fe3+, Pd2+, and Sn2+ ions using carbon nanodots derived from hazelnut shells
Methods and Applications in Fluorescence · 2025 SCI-Expanded
DOÇENT SALİHA DİNÇ →
Makale Bilgileri
DergiMethods and Applications in Fluorescence
Yayın TarihiTemmuz 2025
Cilt / Sayfa13
Scopus ID2-s2.0-105005351929
Özet
Carbon nanodots (CNDs) were synthesized from hazelnut shells using the pyrolysis method in an oven at temperatures ranging from 250 to 400 °C and reaction times between 1 and 3 h. The structural and optical properties of the CNDs, which exhibited strong blue fluorescence under a UV lamp (365 nm), were characterized using UV-vis absorption spectroscopy, fluorescence spectroscopy, Fourier-transform infrared (FTIR) spectroscopy, x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). The quantum yield of the CNDs was determined to be between 2.2% and 7.8%. The effect of various cations on the fluorescence spectra of the CNDs was investigated using fluorescence spectrometry. Among the synthesized CNDs, those prepared via pyrolysis for 3 h at 300 °C, 315 °C, and 350 °C (designated as HS300-3, HS315-3, and HS350-3, respectively) exhibited selective fluorescence quenching in the presence of Fe<sup>3+</sup>, Sn<sup>2+</sup>, and Pd<sup>2+</sup>. These CNDs were applied for the determination of Fe<sup>3+</sup> in tap water and soil samples, while HS315-3 was also employed for the detection of Sn<sup>2+</sup> and Pd<sup>2+</sup> in tap water. The limits of detection (LOD) were 4.5 μg l<sup>−1</sup> for Fe<sup>3+</sup> and 15.8 μg l<sup>−1</sup> for both Sn<sup>2+</sup> and Pd<sup>2+</sup>. The accuracy of the methods was validated through spiked recovery experiments with tap water samples and by analyzing a certified reference material (CRM-SA-C Sandy Soil C).
Yazarlar (7)
1
Abidin Gümrükçüoğlu
2
Miraç Ocak
3
Sevgi Kolaylı
4
Saliha Dinç
5
Iiknur Altin
6
Serhat Gün
7
Ümmühan Turgut Ocak
ORCID: 0000-0003-3696-4736
Anahtar Kelimeler
carbon nanodots
Fe3+
fluorescence spectroscopy
hazelnut shells
Pd2+
Sn2+
Kurumlar
Artvin Coruh University, Turkey
Artvin Turkey
Karadeniz Technical University
Trabzon Turkey
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
4
Atıf
7
Yazar
6
Anahtar Kelime