We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Sorção de chumbo numa sílica modificada obtida da crisotila: aplicação de isotermas.
- Authors
da Silva Filho, Edson Cavalcanti; Fortes, Antônio Wuiston Martins; da Silva Reis, Luizângela; Chaves Santos, Maria Rita de Morais; Santos Júnior, Luiz de Sousa; da Fonseca, Maria Gardênnia
- Abstract
A silica was modified with three alcoxysilanes with different quantities of nitrogen, whose the silica obtained from chrysotile acid leaching. The modified silicas were applied in lead removal from aqueous solution, obtained the following capacities: 1.41, 0.78 e 0.60 mmol g-1 for the materials containing 3, 1 and 2 nitrogen in organic chains, respectively. The isotherms were adjusted using different models, and each material showed affinity to a model. The interactions were favorable and spontaneous from Freundlich model and Gibbs free energy, respectively.
- Subjects
LEAD; LEAD removal (Water purification); SILICA; CHRYSOTILE; ATMOSPHERIC temperature; SOIL leaching; SOIL absorption &; adsorption
- Publication
Comunicata Scientiae, 2010, Vol 1, Issue 1, p15
- ISSN
2176-9079
- Publication type
Article