Relevance study of bare and coated zero valent iron nanoparticles for lindane degradation from its by-product monitorization |
| |
Authors: | I San Román ML Alonso L Bartolomé A Galdames E Goiti M Ocejo M Moragues RM Alonso JL Vilas |
| |
Institution: | 1. Analytical Chemistry Department, Faculty of Science and Technology, University of Basque Country/EHU, Box 644, 48080 Bilbao, Spain;2. Central Analysis Service, Faculty of Science and Technology, University of Basque Country/EHU, Box 644, 48080 Bilbao, Spain;3. Physical Chemistry Department, Faculty of Science and Technology, University of Basque Country/EHU, 48940 Leioa, Spain;4. Tecnalia, Construction Unit, Biscay Technological Park, 48160 Derio, Spain;5. BCmaterials, Biscay Technological Park, 48160 Derio, Spain |
| |
Abstract: | Zero-valent iron nanoparticles (NZVI) as well as polymer–stabilized nanoparticles were synthesized and used for lindane (γ-hexachlorocyclohexane) degradation in aqueous solution. To study the effectiveness of the different coated nanoparticles, simple and rapid analytical methods have been developed to measure and to detect lindane and its by-products. For the monitorization of lindane degradation solid-phase extraction (SPE) was used, while volatile by-products formation measurement was carried out by headspace-solid phase microextraction (HS–SPME) followed by GC/MS. The SPE–GC/MS method provides low detection limits (0.2 μg L−1), high recovery (above 95%) and it is a valuable tool for kinetic studies of the degradation process for each polymer used, while HS–SPME–GC/MS has proved to be an effective tool for the extraction and evaluation of volatile degradation by-products. |
| |
Keywords: | Lindane Zero-valent iron nanoparticles SPE HS&ndash SPME |
本文献已被 ScienceDirect 等数据库收录! |
|