Sub-nanomolar sensing of ionic mercury with polymeric electrospun nanofibers
MATERIALS CHEMISTRY AND PHYSICS, cilt.133, sa.1, ss.547-552, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 133 Sayı: 1
- Basım Tarihi: 2012
- Doi Numarası: 10.1016/j.matchemphys.2012.01.081
- Dergi Adı: MATERIALS CHEMISTRY AND PHYSICS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.547-552
- Anahtar Kelimeler: Nanostructures, Optical materials, Thin films, Luminescence
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
Ethyl cellulose (EC) based electrospun nanofibers were exploited for sub-nanomolar level optical chemical sensing of ionic mercury. An azomethine ionophore was used as Hg (I) and Hg (II) sensing material. Ethyl cellulose nanofibers with varying amounts of the ionic liquid; 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIMBF4) were prepared and characterized. The nanofibers were fabricated by electrospinning technique. The offered chemosensor allow determination of mercury ions in a large linear working range between 1.0 x 10(-10) and 1.0 x 10(-4) mol L-1. Limit of detection was found to be 0.07 nM which makes this technique alternative to cold-vapor atomic absorption spectrometry (CV-AAS), flame emission methods and to inductively coupled plasma-mass spectrometry (ICP-MS). \