Mesoporous aluminosilicate glasses: Potential materials for dye removal from wastewater effluents

Almeida, Flavio P.; Botelho, Moema B. S.; Doerenkamp, Carsten; Kessler, Elizaveta; Ferrari, Cynthia R.; Eckert, Hellmut; de Camargo, Andrea S. S.

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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Mesoporous aluminosilicate glasses: Potential materials for dye removal from wastewater effluents

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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:	6
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 Opportunities:	Research Grants - Research, Innovation and Dissemination Centers - RIDC

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