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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Mahani, Ragab Fahem, Amin Al Neklawy, Mohammed M. Atia, Fatma |
| Description | Author Affiliation: Mahani R ( Microwave Physics and Dielectrics Dept., National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.),, Giza, P.O. 12622, Egypt. Electronic address: rmsoliman66@yahoo.com.); Atia F ( Spectroscopy Dept., National Research Centre, 33 EL Bohouth st. (former EL Tahrir st.), P.O. 12622, Giza, Egypt.); Al Neklawy MM ( Physics Dept., Faculty of Science, Helwan University, P.O. 11795, Cairo, Egypt.); Fahem A ( Physics Dept., Faculty of Science, Helwan University, P.O. 11795, Cairo, Egypt.) |
| Abstract | The present paper aims to investigate the sensitivity of dielectric spectroscopy to changes in concentrations of pollutants (heavy metals and metal oxides) uptake by the water hyacinth plant collected from agriculture wastewater drainage. The measurements were carried out on the dried root and shoot plant parts before and after subjecting to different microwave heating powers for different times. Dielectric properties of the untreated root were investigated at temperature range (30-90°C). X-ray fluorescence spectroscopy (XRF) results showed that the concentration of metals and metals oxides are higher in plant root than in plant shoot. Accordingly, the obtained dielectric properties were found to depend on the applied electric field frequency, magnitude of heating power as well as concentrations of pollutants. Analysis of experimental data represented by the imaginary part of the dielectric modulus Mâ ³ (ω) revealed to the presence of three different relaxation processes. The lower frequency relaxation process was associated to charge carriers conduction whereas those appeared at higher frequencies were associated to different types of interfacial polarization. The plant ability for removing heavy metals and metal oxides from the aquatic environments would be enhanced upon subjecting to microwave heating power with 400 W for 30 min. |
| ISSN | 13861425 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Volume Number | 162 |
| e-ISSN | 18733557 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-06-05 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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