173 research outputs found
Bitkisel Yağ Hidrogenasyonunda Kullanılan Nikel Katalizör Atıklarından Nikelin Geri Kazanımı
Synthesis, characterization and applications of N-vinyl pyrrolidone and itaconic acid based hydrogels
Synthesis of Ionic-Imprinted Polymer for Selective Removal of Zn(II) from Aqueous Solutions
Investigation of adsorption of free- and bound-EDTA onto red muds for modelling the uptake of metal-organic complexes by hydrated oxides
Metakrilik asit içeren çapraz bağlı bir polimer Üzerinde Cu2+, Cd2+, Pb2+, Cr3+, Fe2+ ve Zn2+ iyonlarının sorpsiyonunun atomik absorpsiyon spektroskopisi ile incelenmesi
Nikel Esaslı Reforming Katalizör Atıklarından Nikelin Asidik Liçing İşlemi ile Geri kazanımı
Cr(III) REMOVAL FROM AQUEOUS SOLUTIONS BY ADSORPTION
The adsorption of Cr (III) on the adsorbent produced from lignite coal was studied as a function of time, amount of adsorbent, pH and temperature. Cr (III) adsorption data obeyed Freundlich, Langmuir and Lagergren equations. The values of ?H0, ?S0 and ?G0 were calculated. The results showed that adsorption is endothermic. The negative free energy values indicate that the process of Cr (III) adsorption is spontaneous and favoured at high temperatures. The adsorption of Cr (III) in the presence of different cations was also studied at 200 C. The results were correlated with the ionic potential of cations
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