| Abstract [eng] |
This paper presents structure, morphology and adsorbtion capacity of activated carbons (SORBEX, CARBON, PAIRA and DAILY PHARMA) used in pharmacy. There were numerous of analysis methods applied to characterize these carbons including X-ray diffraction (XRD), thermogravimetry – differential scanning calorimetry (TG-DSC), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX), Fourrier transform infrared spetcroscopy (FTIR), UV-Vis spectroscopy and atomic adsorbtion spectroscopy (AAS). Nitrogen adsorbtion and desorbtion analysis was used to determine the surface area and pore parameters of activated carbons. Adsorbtion capacity of activated carbons was compared by using cobalt(II) ions adsorbtion from aqueous solutions. It was concluded that all examined activated carbons have mesopore structure, mostly consisting of about 4 nm diameter pores. SORBEX brand activated carbon has the largest surface area (>1000 m2/g) and adsorbtion capacity. The amount of adsorbed cobalt(II) ions depend on the surface area of activated carbon and increases in the following order: DAILY PHARMA < PAIRA < CARBON < SORBEX. |
