Synthesis of Modified Chitosan Gel Beads and Adsorption Performance of Cu(II)

2020 ◽  
Vol 231 (6) ◽  
Author(s):  
Shan Liu ◽  
Xuanni Li ◽  
Tao Li ◽  
Lei Liao ◽  
Lei Cao ◽  
...  
Keyword(s):  
Modified Chitosan ◽  
Adsorption Performance ◽  
Gel Beads ◽  
Chitosan Gel

scholarly journals Equilibrium modeling of mono and binary sorption of Cu(II) and Zn(II) onto chitosan gel beads

2016 ◽  
Vol 37 (4) ◽  
pp. 485-501 ◽  
Author(s):  
Józef Nastaj ◽  
Małgorzata Tuligłowicz ◽  
Konrad Witkiewicz
Keyword(s):  
Metal Ion ◽  
Ph Value ◽  
Experimental Studies ◽  
Process Conditions ◽  
Optimal Process ◽  
Sorption Data ◽  
Gel Beads ◽  
Two Component ◽  
Equilibrium Data ◽  
Chitosan Gel

Abstract The objective of the work are in-depth experimental studies of Cu(II) and Zn(II) ion removal on chitosan gel beads from both one- and two-component water solutions at the temperature of 303 K. The optimal process conditions such as: pH value, dose of sorbent and contact time were determined. Based on the optimal process conditions, equilibrium and kinetic studies were carried out. The maximum sorption capacities equaled: 191.25 mg/g and 142.88 mg/g for Cu(II) and Zn(II) ions respectively, when the sorbent dose was 10 g/L and the pH of a solution was 5.0 for both heavy metal ions. One-component sorption equilibrium data were successfully presented for six of the most useful three-parameter equilibrium models: Langmuir-Freundlich, Redlich-Peterson, Sips, Koble-Corrigan, Hill and Toth. Extended forms of Langmuir-Freundlich, Koble-Corrigan and Sips models were also well fitted to the two-component equilibrium data obtained for different ratios of concentrations of Cu(II) and Zn(II) ions (1:1, 1:2, 2:1). Experimental sorption data were described by two kinetic models of the pseudo-first and pseudo-second order. Furthermore, an attempt to explain the mechanisms of the divalent metal ion sorption process on chitosan gel beads was undertaken.

Preparation of porous chitosan gel beads for copper(II) ion adsorption

2007 ◽  
Vol 147 (1-2) ◽  
pp. 67-73 ◽  
Author(s):  
F ZHAO ◽  
B YU ◽  
Z YUE ◽  
T WANG ◽  
X WEN ◽  
...  
Keyword(s):  
Ion Adsorption ◽  
Gel Beads ◽  
Porous Chitosan ◽  
Chitosan Gel

Adsorption of Methylene Orange on Embedding Carbon Nanotubes Sodium Alginate /Chitosan Gel Beads

2014 ◽  
Vol 58 (47) ◽  
pp. 33-43
Author(s):  
F.-C. Tsai ◽  
T.-C. Chiang ◽  
N. Ma ◽  
J.-J. Shi ◽  
X. Yue ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Sodium Alginate ◽  
Methylene Orange ◽  
Gel Beads ◽  
Chitosan Gel

Sulfasalazine release from alginate-N,O-carboxymethyl chitosan gel beads coated by chitosan

2009 ◽  
Vol 77 (2) ◽  
pp. 326-330 ◽  
Author(s):  
M. Tavakol ◽  
E. Vasheghani-Farahani ◽  
T. Dolatabadi-Farahani ◽  
S. Hashemi-Najafabadi
Keyword(s):  
Carboxymethyl Chitosan ◽  
Gel Beads ◽  
Chitosan Gel

The fabrication of a thiol-modified chitosan magnetic graphene oxide nanocomposite and its adsorption performance towards the illegal drug clenbuterol in pork samples

2020 ◽  
Vol 49 (18) ◽  
pp. 6097-6107
Author(s):  
Xu Jiang ◽  
Wenyue Pan ◽  
Mengying Chen ◽  
Yunxia Yuan ◽  
Longshan Zhao
Keyword(s):  
Graphene Oxide ◽  
Illegal Drug ◽  
Magnetic Graphene Oxide ◽  
Modified Chitosan ◽  
Adsorption Performance ◽  
Magnetic Graphene ◽  
Pork Samples

Thiol-modified chitosan magnetic graphene oxide as a novel MSPE adsorbent for enrichment and extraction of clenbuterol in pork samples.

Sign in / Sign up

Export Citation Format

Share Document