Diethylenetriaminepentaacetic acid–thiourea-modified magnetic chitosan for adsorption of hexavalent chromium from aqueous solutions

2021 ◽  
pp. 118555
Author(s):  
Shejiang Liu ◽  
Jing Gao ◽  
Li Zhang ◽  
Yongkui Yang ◽  
Xiuli Liu
Keyword(s):  
Aqueous Solutions ◽  
Hexavalent Chromium ◽  
Diethylenetriaminepentaacetic Acid ◽  
Magnetic Chitosan

Magnetic chitosan composite particles: Evaluation of thorium and uranyl ion adsorption from aqueous solutions

2012 ◽  
Vol 87 (2) ◽  
pp. 1185-1191 ◽  
Author(s):  
Doina Hritcu ◽  
Doina Humelnicu ◽  
Gianina Dodi ◽  
Marcel Ionel Popa
Keyword(s):  
Aqueous Solutions ◽  
Uranyl Ion ◽  
Composite Particles ◽  
Ion Adsorption ◽  
Magnetic Chitosan ◽  
Chitosan Composite

scholarly journals Removal of Hexavalent Chromium Ions from Aqueous Solutions by an Anion-Exchange Resin

2008 ◽  
Vol 26 (9) ◽  
pp. 693-703 ◽  
Author(s):  
P. Senthil Kumar ◽  
K. Kirthika ◽  
K. Sathish Kumar
Keyword(s):  
Aqueous Solutions ◽  
Anion Exchange ◽  
Hexavalent Chromium ◽  
Exchange Resin ◽  
Ph Value ◽  
Anion Exchange Resin ◽  
Freundlich Isotherm ◽  
Sorption Process ◽  
Isotherm Models ◽  
Exchange Resins

The removal of hexavalent chromium, Cr(VI), from aqueous solutions under different conditions using an anion-exchange resin (AXR) as an adsorbent was investigated under batch conditions. Such studies indicated that the percentage adsorption decreased with increasing initial Cr(VI) concentration, with the maximum removal of such ions occurred at a pH value of ca. 2.0. Both the Langmuir and Freundlich isotherm models were capable of reproducing the isotherms obtained experimentally. The sorption process was rapid during the first 20 min with equilibrium being attained within 30 min. The process followed first-order kinetics. The results demonstrate that such anion-exchange resins can be used for the efficient removal of Cr(VI) ions from water and wastewater.

Magnetic chitosan microspheres for the removal of methyl violet 2B from aqueous solutions

2021 ◽  
pp. 1-13
Author(s):  
Luciane Torezan ◽  
Jordana Bortoluz ◽  
Nayrim Brizuela Guerra ◽  
Fabrício Ferrarini ◽  
Luis Rafael Bonetto ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Methyl Violet ◽  
Magnetic Chitosan ◽  
Chitosan Microspheres ◽  
Methyl Violet 2B ◽  
Magnetic Chitosan Microspheres
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