Adsorption of lead(II) ions from aqueous solutions by activated carbon prepared from biomass plant material of Euphorbia rigida
| Autor: | H. Ferdi Gerçel, Özgül Gerçel |
|---|---|
| Přispěvatelé: | Anadolu Üniversitesi, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü, Gerçel, Özgül |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
General Chemical Engineering
Inorganic chemistry Industrial and Manufacturing Engineering Ion symbols.namesake Adsorption Reaction rate constant medicine Environmental Chemistry Diffusion (business) Isotherm Aqueous solution Chromatography biology Chemistry Langmuir adsorption model General Chemistry biology.organism_classification Euphorbia Rigida Kinetics Euphorbia rigida Lead symbols Activated carbon medicine.drug |
| Popis: | WOS: 000247716600029 Adsorption of lead(II) ions onto activated carbon prepared from renewable plant material, which is Euphorbia rigida, was investigated with the variation in the parameters of pH, contact time, the amounts of adsorbent, lead(II) ions concentration and temperature. Adsorption data of lead(II) ions onto activated carbon by E. rigida obeys the Langmuir isotherm model. Maximum adsorption capacity (q(max)) of lead(II) ions onto adsorbent was 1.35 x 10(-3) mol g(-1) or 279.72 mg g(-1) at 40 degrees C. Three kinetic models are the first-order, pseudo- second-order and intraparticle diffusion equations. were selected to interpret the adsorption data. Kinetic parameters such as the rate constants, equilibrium adsorption capacities and related correlation coefficients, for each kinetic model were calculated and discussed. It was indicated that the adsorption of lead(II) ions onto activated carbon by E. rigida could be described by the pseudo-second-order kinetic model and also followed the simple external diffusion model the initial 10 min and then by intraparticle diffusion model up to 50 min |
| Databáze: | OpenAIRE |
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