| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000400418 |
| ISSN: | 0001-3765 |
| Authors: | Pinto, Thais F1 Bezerra, Cicero W.B1 Silva, Domingos S.A1 Silva-Filho, Edson C. da2 Vieira, Adriana P3 Airoldi, Claudio3 Melo, Julio C.P. de3 Silva, Hildo A.S1 Santana, Sirlane A.A1 |
| Institutions: | 1Universidade Federal do Maranhao, Centro de Ciencias Exatas e Tecnologia, Sao Luis, Maranhao. Brasil 2Universidade Federal do Piaui, Centro de Ciencias da Natureza, Teresina, Piaui. Brasil 3Universidade Estadual de Campinas, Instituto de Quimica, Campinas, Sao Paulo. Brasil |
| Year: | 2016 |
| Season: | Sep |
| Volumen: | 88 |
| Number: | 3 |
| Pages: | 1211-1220 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The adsorption of Violet Remazol 5R (VR 5) on wood sawdust modified with succinic anhydride (SSA) as a function of contact time, pH, and initial dye concentrations was investigated using a batch technique under ambient conditions. The SSA obtained was confirmed by IR spectroscopy, thermogravimetry and 13C NMR, and degrees of substitution (DS) were calculated. A study on the effect of the pH on the adsorption of VR 5 showed that the optimum pH was 2.0. The interactions were assayed with respect to the pseudo-first-order and pseudo-second-order kinetic models, and were found to follow closely the pseudo-second-order. The isotherm was adjusted to the Langmuir, the Freundlich and the Temkin sorption models. SSA is a promising material for the removal of dye textile from aqueous solutions, and under conditions studied the removal percentage achieved was 51.7% |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería ambiental, Ingeniería química, Colorantes textiles, Adsorción, Aserrín, Anhídrido succínico |
| Keyword: | Engineering, Chemical engineering, Environmental engineering, Textile dyes, Adsorption, Sawdust, Succinic anhydride |
| Full text: | Texto completo (Ver HTML) |
