Identification of paramagnetic radicals in gamma-irradiated natural diatomite minerals by electron paramagnetic resonance
Küçük Resim Yok
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, gamma-irradiated natural diatomite minerals were investigated by electron paramagnetic resonance (EPR) spectroscopy at ambient temperature. The paramagnetic radicals produced by gamma-irradiation in natural diatomite minerals at ambient temperature were free radicals. These centers were found to be perfectly attributed to CH3, PO42-, CO2-, organic (probably, humic or fluvic acid), SO2- and SO3- observable at below 20 mW microwave power. The g values of all the paramagnetic centers were obtained, and some of their a values were reported. The results were found to be consistent with the existing literature data and theoretical predictions for similar paramagnetic centers. (C) 2004 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
EPR, diatomite, gamma-irradiation, free radicals
Kaynak
JOURNAL OF MOLECULAR STRUCTURE
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
733
Sayı
45352
