Adsorptive removal of crystal violet from aqueous solution by cross-linked chitosan coated bentonite

2020 ◽  
Vol 29 ◽  
pp. 1025-1032
Author(s):  
Sarika H. Vithalkar ◽  
Ravin M. Jugade
2017 ◽  
Vol 494 ◽  
pp. 223-241 ◽  
Author(s):  
Luide Rodrigo Martins ◽  
Josilene Aparecida Vieira Rodrigues ◽  
Oscar Fernando Herrera Adarme ◽  
Tânia Márcia Sacramento Melo ◽  
Leandro Vinícius Alves Gurgel ◽  
...  

2015 ◽  
Vol 65 ◽  
pp. 521-534 ◽  
Author(s):  
Bruno Christiano Silva Ferreira ◽  
Filipe Simões Teodoro ◽  
Aparecida Barbosa Mageste ◽  
Laurent Frédéric Gil ◽  
Rossimiriam Pereira de Freitas ◽  
...  

2011 ◽  
Vol 236-238 ◽  
pp. 125-129
Author(s):  
Run Fang ◽  
Xian Su Cheng

This study evaluated the potential application of a biomass material, corncob lignocellulose (CL), as a novel adsorbent for the removal of basic dyes from aqueous solutions. The adsorption behavior and mechanism of basic dyes on CL was investigated via batch experiments. Both adsorption and desorption studies showed that the attachment of basic dyes onto CL was ascribed to a combined interaction involving electrostatic attraction and chemisorption. The decolorization efficiency of CL increased with increasing solution pH and temperature. Thermodynamic parameters demonstrated the spontaneous and endothermic nature of the adsorption. The dye uptake process was best described by the Langmuir isotherm. The adsorption capacity of CL for Methylene blue, Crystal Violet and Malachite Green at 30°C was calculated to be 145.8, 121.8 and 65.7 mg/g, respectively.


2012 ◽  
Vol 550-553 ◽  
pp. 2420-2423 ◽  
Author(s):  
Run Fang

This study presents the preparation of corncob-based bio-char and its application in adsorptive removal of three basic dyes (methylene blue, crystal violet and basic fuchsin) from aqueous solution. The adsorption behavior of basic dyes on bio-char was investigated via batch experiments. Experimental results showed that the adsorption efficiency of bio-char increased with increasing solution pH and temperature. Thermodynamic parameters demonstrated the spontaneous and endothermic nature of the adsorption. The dye removal process fitted the Langmuir isotherm well. The adsorption capacity of bio-char for methylene blue, crystal Violet and basic fuchsin at 25°C was calculated to be 126.58, 81.96 and 75.18 mg/g, respectively.


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