Removal of free and total glycerol from soybean biodiesel by adsorption on light e...
| Full text | |
| Author(s): |
Almeida, Flavio P.
;
Botelho, Moema B. S.
;
Doerenkamp, Carsten
;
Kessler, Elizaveta
;
Ferrari, Cynthia R.
;
Eckert, Hellmut
;
de Camargo, Andrea S. S.
Total Authors: 7
|
| Document type: | Journal article |
| Source: | Journal of Solid State Chemistry; v. 253, p. 406-413, SEP 2017. |
| Web of Science Citations: | 4 |
| Abstract | |
Mesoporous amorphous sodium-aluminosilicate host matrices of composition Si1-xAlxNaxO2, 0.1 <= x <= 0.33, obtained by sol-gel methodology, have been used as sequestrating agents for the cationic dye Rhodamine 6 G (Rh6G) in solution. Favorable adsorption kinetics and a wide pH working range (4-10) as well as high sorption capacities for Rh6G render these materials potentially useful reagents for effective dye removal from wastewaters. While the experimentally realized sorption capacities fall significantly below the theoretical limits, used materials can be thermally re-cycled by pyrolizing the sequestrated dye molecules. Solid state NMR and BET measurements show that this process occurs under preservation of the materials' structural integrity, allowing it to be re-used multiple times. (AU) | |
| FAPESP's process: | 13/07793-6 - CEPIV - Center for Teaching, Research and Innovation in Glass |
| Grantee: | Edgar Dutra Zanotto |
| Support type: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |