Preparation, characterization and adsorption properties of a novel 3-aminopropyltriethoxysilane functionalized sodium alginate porous membrane adsorbent for Cr(III) ions

2013 ◽  
Vol 248-249 ◽  
pp. 285-294 ◽  
Author(s):  
Jian Hua Chen ◽  
Hai Tao Xing ◽  
Hong Xu Guo ◽  
Guo Ping Li ◽  
Wen Weng ◽  
...  
Keyword(s):  
Sodium Alginate ◽  
Porous Membrane ◽  
Adsorption Properties ◽  
Membrane Adsorbent

Recovery and investigation of Cu(II) ions by tannin immobilized porous membrane adsorbent from aqueous solution

2015 ◽  
Vol 273 ◽  
pp. 19-27 ◽  
Author(s):  
Jian Hua Chen ◽  
Xue Sun ◽  
Wen Weng ◽  
Hong Xu Guo ◽  
Shi Rong Hu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Porous Membrane ◽  
Membrane Adsorbent

Preparation of microgel/sodium alginate composite granular hydrogels and their Cu2+adsorption properties

RSC Advances ◽  
2016 ◽  
Vol 6 (102) ◽  
pp. 100511-100518 ◽  
Author(s):  
Fang Zhao ◽  
Xuping Qin ◽  
Shengyu Feng
Keyword(s):  
Sodium Alginate ◽  
Adsorption Properties ◽  
Schematic Diagram ◽  
Hydrogel Formation ◽  
Granular Hydrogel

Schematic diagram of microgel/SA composite spherical granular hydrogel formation.

Preparation and Investigation on the Adsorption Behavior of Polyethylene Glycol Modified Sodium Alginate Porous Membrane Adsorbent for Cr(III) Ions

2012 ◽  
Vol 455-456 ◽  
pp. 786-795
Author(s):  
Jian Hua Chen
Keyword(s):  
Polyethylene Glycol ◽  
Sodium Alginate ◽  
Low Cost ◽  
Freundlich Isotherm ◽  
Porous Membrane ◽  
Order Kinetic ◽  
Kinetic Experiment ◽  
Isotherm Equation ◽  
Adsorption Processes ◽  
Isotherm Equations

- In this study, sodium alginate based porous membrane adsorbents (GA/SA) were prepared by using polyethylene glycol (PEG) as porogen and glutaraldehyde (GA) as cross-linking agent. The prepared GA/SA were used to remove Cr (III) ions from wastewater to test its adsorption performance. The proposed technique is very convenient for operation. The batch experiments were performed to investigate the adsorption kinetics of Cr (III) ions from aqueous solution under different conditions, such as the amount of PEG in the GA/SA, pH of solution, initial Cr (III) ions concentration, adsorbent dose and contact time. The GA/SA exhibited the maximum uptake capacity of 57.4 mg/g under the optimal condition. The experiment results show that the adsorption is high pH-dependent. Various kinetic models were applied to examine the mechanism of adsorption processes. Pseudo-second-order kinetic model exhibits the best correlation with experimental data. The kinetic experiment results show that the adsorption of Cr (III) ions is a multistep limited adsorption process. Out of Langmuir and Freundlich isotherm equations, the batch equilibrium data are better described by the Freundlich isotherm equation. The prepared GA/SA could be considered as a potential low-cost and high-effective bio-sorbent for removing and recovering Cr (III) ions from the aqueous solutions.

scholarly journals Preparation of cellulose/sodium alginate/sepiolite porous microspheres and their adsorption properties for methylene blue

2021 ◽  
Vol 1790 (1) ◽  
pp. 012088
Author(s):  
Tingting Li ◽  
Ruixue Li ◽  
Zheng Ma ◽  
Anting Yang ◽  
Chenlu Jiao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Sodium Alginate ◽  
Adsorption Properties ◽  
Porous Microspheres
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