scholarly journals Removal of Chromium(VI) from Aqueous Solutions Using Fe3O4 Magnetic Polymer Microspheres Functionalized with Amino Groups

Materials ◽  
2015 ◽  
Vol 8 (12) ◽  
pp. 8378-8391 ◽  
Author(s):  
Kai Wang ◽  
Guangming Qiu ◽  
Hongyu Cao ◽  
Ruifa Jin
Keyword(s):  
Aqueous Solutions ◽  
Polymer Microspheres ◽  
Amino Groups ◽  
Chromium Vi

scholarly journals Polyethylenimine-functionalized cellulose aerogel beads for efficient dynamic removal of chromium(vi) from aqueous solution

RSC Advances ◽  
2017 ◽  
Vol 7 (85) ◽  
pp. 54039-54052 ◽  
Author(s):  
Dong-Mei Guo ◽  
Qing-Da An ◽  
Zuo-Yi Xiao ◽  
Shang-Ru Zhai ◽  
Zhan Shi
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Cross Linking ◽  
Amino Groups ◽  
Chromium Vi ◽  
Cellulose Aerogel

Cellulose aerogel beads with high a density of reactive amino groups were facilely prepared via a cross-linking reaction for efficient dynamic removal of Cr(vi) from aqueous solutions.

scholarly journals Amberlite IRC-718 ion chelating resin extraction of hazardous metal Cr (VI) from aqueous solutions: equilibrium and theoretical modeling

2021 ◽  
Author(s):  
Abdelhamid Addala ◽  
Moussa Boudiaf ◽  
Maria Elektorowicz ◽  
Embarek Bentouhami ◽  
Yacine Bengeurba
Keyword(s):  
Ion Exchange ◽  
Aqueous Solutions ◽  
Exchange Process ◽  
Ion Exchange Resin ◽  
Exchange Capacity ◽  
Chelating Resin ◽  
Exchange Potential ◽  
Chromium Vi ◽  
Ion Exchange Process ◽  
Hazardous Metal

Abstract Under varied conditions, the IRC 718 ion-exchange resin is used to extract chromium (VI) ions from aqueous solutions. On chromium (VI) removal effectiveness, the effects of adsorption dosage, contact time, beginning metal concentration, and pH were examined. The batch ion exchange process reached equilibrium after around 90 minutes of interaction. With an initial chromium (VI) concentration of 0.5 mg/dm3, the pH-dependent ion-exchange mechanism revealed maximal removal in the pH 2.0–10 range . The adsorption mechanism occurs between Cr(VI) determined as the electron acceptor, and IRC 718 determined as the electron donor. The equilibrium ion-exchange potential and ion transfer quantities for Amberlite IRC 718 were calculated using the Langmuir adsorption isotherm model. The overall ion exchange capacity of the resin was determined to be 187.72 mg of chromium (VI)/g of resin at an ideal pH of 6.0.

Preparation of polymer microspheres with reactive epoxy group and amino groups as stabilizers for gold nanocolloids with recoverable catalysis

2014 ◽  
Vol 293 (1) ◽  
pp. 187-197 ◽  
Author(s):  
Tao Song ◽  
Meijun Zhou ◽  
Wei Liu ◽  
Guomin Bian ◽  
Yonglin Qi ◽  
...  
Keyword(s):  
Epoxy Group ◽  
Polymer Microspheres ◽  
Amino Groups

Chromium VI and cadmium II removal from aqueous solutions by olive stones

2010 ◽  
Vol 16 (1-3) ◽  
pp. 393-401 ◽  
Author(s):  
K. Rouibah ◽  
A.-H. Meniai ◽  
L. Deffous ◽  
M. Bencheikh Lehocine
Keyword(s):  
Aqueous Solutions ◽  
Chromium Vi ◽  
Olive Stones

scholarly journals Biosorption of Chromium (VI) from Aqueous Solutions onto Fungal Biomass

2004 ◽  
Vol 2 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Ismael Acosta R. ◽  
Xöchitl Rodríguez ◽  
Conrado Gutiérrez ◽  
Ma. de Guadalupe Moctezuma
Keyword(s):  
Aqueous Solutions ◽  
Fungal Biomass ◽  
Chromium Vi
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