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Preparation of carbon materials from chromium-tanned leather shavings for the removal of dyes from aqueous solution
Javier Antonio Arcibar Orozco
BERTHA SILVIA BARAJAS ELIAS
Hazael Baltazar Campos
JOSE RENE RANGEL MENDEZ
Acceso Abierto
Atribución-NoComercial-SinDerivadas
https://doi.org/10.1007/s13201-022-01734-z
Chromium-tanned leather shavings
Carbon materials
Adsorption
Dye removal
Revalorization
"Chromium-Tanned Leather Shavings are hazardous residues generated during leather processing. Since they contain considerable amounts of chromium, they represent a threat to life and the environment if managed improperly. The present study examines the transformation of such residues into carbon adsorbents and their use in the removal of azo dyes (methylene blue, Congo red and acid black 210) from water. The effects of temperature, holding time and the presence of an activating agent were studied, and basic characterization of the produced materials was performed. Carbon materials contain a low amount of chromium and an improved surface area that was only developed when high temperatures and an activating agent were employed. Depending on the synthesis conditions, the adsorbents’ surface charge was positive or negative, which impacts the dye uptake from aqueous solution. Both the chemical speciation of the dye and the material´s pore volume played a critical role during the adsorption process. It is possible to obtain carbon materials from Chromium-Tanned Leather Shavings, containing no hazardous chromium(VI) particles, that are capable of removing polluting dyes from water."
Springer Nature
2022
Artículo
Arcibar-Orozco, J.A., Barajas-Elías, B.S., Baltazar-Campos, H. et al. Preparation of carbon materials from chromium-tanned leather shavings for the removal of dyes from aqueous solution. Appl Water Sci 12, 213 (2022). https://doi.org/10.1007/s13201-022-01734-z
HIDROLOGÍA
Versión publicada
publishedVersion - Versión publicada
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