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International Journal of Nanomaterials and Chemistry
An International Journal
               
 
 
 
 
 
 
 
 
 
 
 
 

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Volumes > Volume 3 > No. 2

 
   

Efficient Adsorption and Photocatalytic Degradation of Malachite Green Dye Using Bentonite Natural Adsorbent

PP: 33-37
Author(s)
Shailesh J. Vajapara, Sweety J. Patel, C. P. Bhasin,
Abstract
Removal of dyes which are toxic in nature from industrial wastewaters is currently of great interest. For this purpose, the use of Bentonite for the removal of Malachite green dye from aqueous solutions at different contact times, pH and dye concentration was investigated. Bentonite has a high potential to adsorb reactive dyes from aqueous solutions according to TEM image. The extent of dye removal increased with increasing adsorbent concentration, contact time, pH and dye concentration. The kinetics of the adsorption process was tested for the pseudo-first order and pseudo-second order reaction models. The rate constant of adsorption was obtained for the pseudo-second order kinetic model. The adsorption capacity of the Bentonite is comparable to the other available adsorbents, and it is quite cheaper. Itís easily available in market.

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