Preparação e caracterização de carvão ativado quimicamente a partir da casca de arroz
| dc.date.accessioned | 2011-02-10T16:33:32Z | |
| dc.date.available | 2011-02-10T16:33:32Z | |
| dc.identifier.citation | SCHETTINO JR., Miguel A. et al. Preparação e caracterização de carvão ativado quimicamente a partir da casca de arroz. Quím. Nova, São Paulo, v. 30, n. 7, p. 1663-1668, 2007. Disponível em: <http://www.scielo.br/pdf/qn/v30n7/30.pdf>. Acesso em: 10 fev. 2011. | por |
| dc.identifier.doi | 10.1590/S0100-40422007000700031 | |
| dc.identifier.issn | 0100-4042 | |
| dc.identifier.uri | http://repositorio.ufes.br/handle/10/588 | |
| dc.rights | open access | en |
| dc.title | Preparação e caracterização de carvão ativado quimicamente a partir da casca de arroz | por |
| dc.type | article | en |
| dcterms.abstract | This work consists in a study about the chemical activation of charred rice hulls using NaOH as the activation agent. The influence of the naturally-occurring silica was particularly evidenced. X-ray diffraction patterns showed the formation of sodium carbonate and silicates in the activated samples, whereas thermogravimetric curves revealed a strong reduction in the ash content of these samples after washing with water. Nitrogen adsorption data indicated a microporosity development only in the washed samples, with BET surface area values of 450 and 1380 m2/g achieved for the samples activated at 800 °C starting from the precursor with or without silica, respectively. | eng |
| dcterms.alternative | Preparation and characterization of chemically activated carbon from rice hulls | por |
| dcterms.creator | Schettino Junior, Miguel Angelo | |
| dcterms.creator | Freitas, Jair Carlos Checon de | |
| dcterms.creator | Cunha, Alfredo G. | |
| dcterms.creator | Emmerich, Francisco Guilherme | |
| dcterms.creator | Soares, Ana B. | |
| dcterms.creator | Silva, Paulo R. N. | |
| dcterms.issued | 2007 | |
| dcterms.language | por | en |
| dcterms.subject | Carbono ativado | por |
| dcterms.subject | Casca de arroz | por |
| dcterms.subject | Activated carbons | eng |
| dcterms.subject | Rice hulls | eng |
| dcterms.subject | Chemical activation | eng |