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Adsorption of Pb2+ by heat-treated and sulfurized activated carbon by A. Macías-García; C. Valenzuela-Calahorro; V. Gómez-Serrano; A. Espínosa-Mansilla is a Materials Science article available to read on EtoBox.
What is Adsorption of Pb2+ by heat-treated and sulfurized activated carbon about?
Using activated carbon (AC) and samples obtained by heat and sulfurizing treatments of the material, the adsorption of Pb\*+ from aqueous solution was studied at two pH values and at three temperatures in the range 2%45°C. Adsorbents were prepared either by heat treatment of AC from 30 to 900°C in Nr or HrS, or by treatment of the material first at 30°C successively in SOr and HrS, and then at 200°C in N,. Their characterization was in terms oftextural properties and surface chemistry. Techniques used were gas adsorption (Nr, -196"C), mercury porosimetry, density measurements (He, 3O"C), and FT-IR spectroscopy. The treatments effected on AC originated a great increase in the adsorption of Pbr', but only when it occurred from solutions of metallic ion at unchanged pH and at 25°C. Adsorption decreased strongly by pH and temperature variations, except for AC. The adsorption rate depended on the adsorbent, pH, and temperature.
Who reads Adsorption of Pb2+ by heat-treated and sulfurized activated carbon?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- A. Macías-García; C. Valenzuela-Calahorro; V. Gómez-Serrano; A. Espínosa-Mansilla
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0008-6223)
- Published
- 1993
- Language
- EN
- Field
- Materials Science (Physical Sciences)