Removal of Indigo Carmine by a Ni Nanoscale Oxides/Schoenoplectus acutus Composite in Batch and Fixed Bed Column Systems

S Sánchez-Rodríguez, J Trujillo-Reyes… - Separation Science …, 2015 - Taylor & Francis
S Sánchez-Rodríguez, J Trujillo-Reyes, E Gutiérrez-Segura, M Solache-Ríos, A Colín-Cruz
Separation Science and Technology, 2015Taylor & Francis
Removal behavior of indigo carmine by Schoenoplectus acutus and Ni nanoscale oxides/
Schoenoplectus acutus composite was determined. The characterization of both materials
was done by TEM, SEM/EDS, DRX, and BET. Experimental data were best fitted to pseudo
second order and Langmuir-Freundlich models for kinetics and isotherm, respectively; these
results indicate a chemisorption mechanism on heterogeneous materials. Adsorption
capacity of Ni nanoscale oxides/Schoenoplectus acutus composite was high in comparison …
Removal behavior of indigo carmine by Schoenoplectus acutus and Ni nanoscale oxides/Schoenoplectus acutus composite was determined. The characterization of both materials was done by TEM, SEM/EDS, DRX, and BET. Experimental data were best fitted to pseudo second order and Langmuir-Freundlich models for kinetics and isotherm, respectively; these results indicate a chemisorption mechanism on heterogeneous materials. Adsorption capacity of Ni nanoscale oxides/Schoenoplectus acutus composite was high in comparison with other adsorbents (760 mg/g). Adsorption of dye is not affected by pH (3 to 9). Metal nanoparticles supported on cheap and eco-friendly adsorbents are an alternative for the removal of dyes from wastewater.
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