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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Eren, E. Onal, Y. Afsin, B. |
| Description | Country affiliation: Turkey Author Affiliation: Eren E ( Ahi Evran University, Faculty of Arts and Science, Department of Chemistry, 40100 Kirsehir, Turkey. erdalern@omu.edu.tr) |
| Abstract | This paper presents the adsorption of Pb(II) from aqua solutions onto Unye (Turkey) bentonite in raw (RB), acid activated (AAB) and manganese oxide-coated (MCB) forms. Adsorption of Pb(II) by RB, AAB and MCB sample was investigated as a function of the initial Pb(II) concentration, solution pH, ionic strength, temperature and inorganic ligand (Cl(-)). Changes in the surfaces and structure were characterized by means of XRD, IR and potentiometric titration. The Langmuir monolayer adsorption capacities of RB, AAB and MCB in 0.1M KNO(3) solution were estimated as 16.70, 8.92 and 58.88 mg/g, respectively. The spontaneity of the adsorption process is established by decrease in DeltaG which varied from -21.60 to -28.60 kJ/mol (RB), -22.63 to -29.98 kJ/mol (AAB) and -19.57 to -26.22 (MCB) in temperature range 303-338 K. |
| ISSN | 03043894 |
| Issue Number | 2-3 |
| Volume Number | 161 |
| e-ISSN | 18733336 |
| Journal | Journal of Hazardous Materials |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2009-01-30 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Bentonite Chemistry Lead Isolation & Purification Manganese Compounds Oxides Water Purification Methods Adsorption Hydrogen-ion Concentration Ions Ligands Models, Statistical Nitrates Potassium Compounds Potentiometry Spectrophotometry, Infrared Temperature Thermodynamics X-ray Diffraction Journal Article Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Waste Management and Disposal Health, Toxicology and Mutagenesis Environmental Engineering |
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