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- W3090631357 endingPage "1404" @default.
- W3090631357 startingPage "1388" @default.
- W3090631357 abstract "A new adsorbent material based on graphene oxide (GO) functionalized with magnetic cobalt ferrite nanoparticles (γCoFe2O4) was synthesized via ultrasonication to remove the endocrine-disrupting-chemical bisphenol A (BPA) from aqueous solutions. The synthesized material (GO-γCoFe2O4) was characterized by TEM, SEM, DRX and FTIR analysis. Magnetization measures proved that the adsorbent had superparamagnetic characteristics that facilitated its separation from the aqueous solution. The maximum adsorption capacity obtained was 30 mg g-1 with adsorbent concentration of 1 g L-1, temperature of 55°C and natural pH of the solution. The experimental data were better adjusted to the kinetic models of pseudo-second-order and Langmuir isotherm. The thermodynamic parameters showed that the BPA adsorption on GO-γCoFe2O4 was spontaneous, exothermic and thermodynamically favourable. Desorption kinetics was performed using 50% ethanol as solvent, resulting in an equilibrium time of 4 h with better adjustment to the pseudo-second order kinetic model. The adsorbent showed a high regeneration capacity maintaining adsorptive capacity above 75% after 6 cycles of reuse." @default.
- W3090631357 created "2020-10-08" @default.
- W3090631357 creator A5006420148 @default.
- W3090631357 creator A5017893884 @default.
- W3090631357 creator A5018232470 @default.
- W3090631357 creator A5024299125 @default.
- W3090631357 creator A5034655441 @default.
- W3090631357 creator A5077356914 @default.
- W3090631357 date "2020-10-02" @default.
- W3090631357 modified "2023-10-17" @default.
- W3090631357 title "Graphene oxide functionalized with cobalt ferrites applied to the removal of bisphenol A: ionic study, reuse capacity and desorption kinetics" @default.
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