Adsorption of crystal violet on biomasses from pecan nutshell, para chestnut husk, araucaria bark and palm cactus: Experimental study and theoretical modeling via monolayer and double layer…

By Xuening Pang, L. Sellaoui, D. Franco, G. Dotto, J. Georgin, A. Bajahzar, H. Belmabrouk, A. B. Lamine, A. Bonilla-Petriciolet, Zichao Li. 2019

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Abstract Biomasses from pecan nutshell (PN), para chestnut husk (PCH), araucaria bark (AB) and palm cactus (PC) were employed to study the adsorption mechanism of a relevant textile pollutant namely crystal violet (CV). Experimental isotherm data performed at the best condition of pH showed that the temperature had no effect on the adsorption of CV on PN and PCH, while the CV dye removal with AB and PC was significant affected by this operating parameter. Monolayer and double layer adsorption models were applied to analyze and explain, based on statistical physics, the removal mechanism of CV using these adsorbents. The application of these statistical physics models allowed to deduce theoretically that the active sites of PN and PCH practically attracted the same number (i.e., 1.12

Subfields: Building and Construction, Food Science, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/56a6e0aacbee57b51efd1e3441993e3b681647e6