Diseño de un material adsorbente a partir del Cuncho de café doméstico para la remoción de Carboxin.

Abstract

In order to find solutions that are favorable to the environment to the problem of waste generation, the coffee grounds were used to perform an activation process, carried out with sodium hydroxide, hydrochloric acid, sulfuric acid and hydrogen peroxide, carrying out gravimetric monitoring, by ATR-FTIR and Carboxin removal capacity by UV-Vis, which allowed to demonstrate that the loss of mass after each treatment is around 10%, with differentiable changes in the functional groups in the activated solid. by PCA and K-means clustering. Additionally, it was found that the maximum removal capacity was 125.3 = 0.2 mg retained for each gram of adsorbent, this property is not affected by the type of substance used to activate the coffee grounds, nor by the temperature. It was verified by means of the adjustment to the langmuir isotherm that the process corresponds to a physisorption. Finally, the formation of a mesoporous solid was verified.