Όλο το DSpace

Πλοήγηση ανά Συγγραφέα "Mitrakas, M."

Αποτελέσματα 1-11 από 11

    • Adapting the use of Fe3O4 nanoparticles in large-scale water treatment facilities 

      Simeonidis, K.; Andritsos, N.; Kaprara, E.; Mourdikoudis, S.; Mitrakas, M. (2014)
      Magnetite nanoparticles were produced by the chemical co-precipitation of iron sulfates at alkaline conditions and were tested as a Cr(VI) adsorbent from water. Batch adsorption experiments showed a high removal efficiency, ...

    • Adjustable Hyperthermia Response of Self-Assembled Ferromagnetic Fe-MgO Core-Shell Nanoparticles by Tuning Dipole-Dipole Interactions 

      Martinez-Boubeta, C.; Simeonidis, K.; Serantes, D.; Conde-Leboran, I.; Kazakis, I.; Stefanou, G.; Pena, L.; Galceran, R.; Balcells, L.; Monty, C.; Baldomir, D.; Mitrakas, M.; Angelakeris, M. (2012)
      The Fe-MgO core-shell morphology is proposed within the single-domain nanoparticle regime as an enhanced magnetically driven hyperthermia carrier. The combinatory use of metallic iron as a core material together with the ...

    • Cu-Zn powders as potential Cr(VI) adsorbents for drinking water 

      Kaprara, E.; Seridou, P.; Tsiamili, V.; Mitrakas, M.; Vourlias, G.; Tsiaoussis, I.; Kaimakamis, G.; Pavlidou, E.; Andritsos, N.; Simeonidis, K. (2013)
      This work examines the possibility of applying CuZn alloys as a reducing medium for the efficient removal of hexavalent chromium from drinking water. In an effort to develop a route for producing powders of CuZn alloys ...

    • Development of iron-based nanoparticles for Cr(VI) removal from drinking water 

      Simeonidis, K.; Tziomaki, M.; Angelakeris, M.; Martinez-Boubeta, C.; Balcells, L.; Monty, C.; Mitrakas, M.; Vourlias, G.; Andritsos, N. (2013)
      A great deal of research over recent decades has been motivated by the requirement to lower the concentration of chromium in drinking water. This study has been conducted to determine the feasibility of iron-based nanoparticles ...

    • Fe-based nanoparticles as tunable magnetic particle hyperthermia agents 

      Simeonidis, K.; Martinez-Boubeta, C.; Balcells, L.; Monty, C.; Stavropoulos, G.; Mitrakas, M.; Matsakidou, A.; Vourlias, G.; Angelakeris, M. (2013)
      Magnetic hyperthermia, an alternative anticancer modality, is influenced by the composition, size, magnetic properties, and degree of aggregation of the corresponding nanoparticle heating agents. Here, we attempt to evaluate ...

    • Mn-feroxyhyte: The role of synthesis conditions on As(III) and As(V) removal capacity 

      Tresintsi, S.; Simeonidis, K.; Mitrakas, M. (2014)
      This study evaluates the critical parameters of synthesizing nanocrystalline tetravalent Mn-feroxyhyte, a single-phase arsenic adsorbent equally efficient against As(III) and As(V). The production of such Fe/Mn oxy-hydroxides ...

    • A novel approach for arsenic adsorbents regeneration using MgO 

      Tresintsi, S.; Simeonidis, K.; Katsikini, M.; Paloura, E. C.; Bantsis, G.; Mitrakas, M. (2014)
      An integrated procedure for the regeneration of iron oxy-hydroxide arsenic adsorbents by granulated MgO is proposed in this study. A continuous recirculation configuration, with a NaOH solution flowing sequentially through ...

    • Occurrence of Cr(VI) in drinking water of Greece and relation to the geological background 

      Kaprara, E.; Kazakis, N.; Simeonidis, K.; Coles, S.; Zouboulis, A. I.; Samaras, P.; Mitrakas, M. (2015)
      This study provides a survey on potential Cr(VI) exposure attributed to drinking water in Greece. For this reason, a wide sampling and chemical analysis of tap waters from around 600 sites, supplied by groundwater resources, ...

    • Optimizing magnetic nanoparticles for drinking water technology: The case of Cr(VI) 

      Simeonidis, K.; Kaprara, E.; Samaras, T.; Angelakeris, M.; Pliatsikas, N.; Vourlias, G.; Mitrakas, M.; Andritsos, N. (2015)
      The potential of magnetite nanoparticles to be applied in drinking water treatment for the removal of hexavalent chromium is discussed. In this study, a method for their preparation which combines the use of low-cost iron ...

    • The role of SO42- surface distribution in arsenic removal by iron oxy-hydroxides 

      Tresintsi, S.; Simeonidis, K.; Pliatsikas, N.; Vourlias, G.; Patsalas, P.; Mitrakas, M. (2014)
      This study investigates the contribution of chemisorbed SO42- in improving arsenic removal properties of iron oxy-hydroxides through an ion-exchange mechanism. An analytical methodology was developed for the accurate ...

    • Tetravalent Manganese Feroxyhyte: A Novel Nanoadsorbent Equally Selective for As(III) and As(V) Removal from Drinking Water 

      Tresintsi, S.; Simeonidis, K.; Estrade, S.; Martinez-Boubeta, C.; Vourlias, G.; Pinakidou, F.; Katsikini, M.; Paloura, E. C.; Stavropoulos, G.; Mitrakas, M. (2013)
      The development of a single-phase Fe/Mn oxy-hydroxide (delta-Fe0.76Mn0.24OOH), highly efficient at adsorbing both As(III) and As(V), is reported. Its synthesis involves the coprecipitation of FeSO4 and KMnO4 in a kilogram-scale ...