Study on Adsorption and Desorption Performance of Reactive Dyes on Anionic Exchange Membrane

2011 ◽  
Vol 332-334 ◽  
pp. 168-172 ◽  
Author(s):  
Tie Ling Xing ◽  
Hu Kai ◽  
Guo Qiang Chen
Keyword(s):  
Water Solution ◽  
Adsorption Model ◽  
Dynamics Model ◽  
Adsorption And Desorption ◽  
Langmuir Adsorption ◽  
Anionic Exchange ◽  
Adsorption Processes ◽  
Adsorption And Desorption Performance ◽  
Exchange Membrane ◽  
Anionic Exchange Membrane

The adsorption and desorption performance of Reactive Brilliant Red K-2BP and Reactive Brilliant Red K-2G on anionic exchange membrane were studied. The adsorption and desorption performances of anionic exchange membrane under different conditions were compared. The results showed that the adsorption accords with the pseudo-second dynamics model. Langmuir adsorption model could well describe adsorption processes. The addition of inorganic salt Na2SO4 in the dye solution had certain influence on the adsorption. The desorption percentage could reach above 80% using the mixture of ethanol, sodium chloride and water solution as desorbent, and the anionic exchange membrane could be reused.

Study on Adsorption and Desorption Performance of Direct Dyes on Anionic Exchange Membrane

2012 ◽  
Vol 550-553 ◽  
pp. 648-652
Author(s):  
Kai Hu ◽  
Jie Xu ◽  
Tie Ling Xing ◽  
Guo Qiang Chen
Keyword(s):  
Water Solution ◽  
Adsorption Model ◽  
Direct Dyes ◽  
Adsorption And Desorption ◽  
Direct Blue ◽  
Anionic Exchange ◽  
Adsorption Processes ◽  
Adsorption And Desorption Performance ◽  
Exchange Membrane ◽  
Anionic Exchange Membrane

The adsorption and desorption performance of C.I. Direct Red 13 and C.I. Direct Blue 6 on anionic exchange membrane were studied. The adsorption and desorption performances of anionic exchange membrane under different conditions were compared. The results showed that the adsorption accords with the pseudo-second dynamics model. Langmuir adsorption model could well describe adsorption processes. The addition of inorganic salt Na2SO4 in the dye solution had certain influence on the adsorption. The desorption percentage could reach above 80% using the mixture of ethanol, sodium chloride and water solution as desorbent, and the anionic exchange membrane could be reused.

scholarly journals Preparation of PVDF anionic exchange membrane by chemical grafting of GMA onto PVDF macromolecule

2016 ◽  
Vol 293 ◽  
pp. 56-63 ◽  
Author(s):  
Bo Tian ◽  
Xin-Yi Wang ◽  
Lin-Nan Zhang ◽  
Fa-Nian Shi ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Chemical Grafting ◽  
Anionic Exchange ◽  
Exchange Membrane ◽  
Anionic Exchange Membrane

scholarly journals The Effect of Deposition Time on the Surface Coverage of Sublimation Deposited Solid-Phase Glycine and Proline Molecules Measured by Scanning Tunneling Microscopy

Molecules ◽  
2020 ◽  
Vol 25 (13) ◽  
pp. 2962
Author(s):  
Young-Sang Youn
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Room Temperature ◽  
Deposition Time ◽  
Surface Coverage ◽  
Solid Phase ◽  
Scanning Tunneling ◽  
Adsorption Model ◽  
Tunneling Microscopy ◽  
Langmuir Adsorption ◽  
Stm Images

The effect of deposition time on the surface coverage of sublimation deposited solid-phase glycine and proline molecules onto a Ge(100) surface was studied at room temperature using scanning tunneling microscopy (STM). The STM images obtained at various coverages of glycine and proline adsorbed on the Ge(100) surface showed that (i) the adsorption rate for both molecules gradually decreased with increasing deposition time, obeying the Langmuir adsorption model, and (ii) the coverage of glycine on the Ge(100) surface is higher than that of proline under the same deposition conditions, which may be due to the differences in their molecular weight or molecular sticking probability.

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