Immersion enthalpy variation of surface-modified mineral activated carbon in lead (II) aqueous solution adsorption: the relation between immersion enthalpy and adsorption capacity
An activated carbon was obtained by chemical activation with phosphoric acid, CM, from a mineral carbon. Afterwards, the carbon was modified with 2 and 5 molL-1, CMox2 and CMox5 nitric acid solutions to increase the surface acid group contents. Immersion enthalpy at pH 4 values and Pb2+ adsorption i...
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| Format: | article |
| Language: | eng |
| Published: |
2006
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46702006000400002 |
| Country: | Brazil |
| Oai: | oai:scielo:S0100-46702006000400002 |