Adsorption kinetics of maxilon blue GRL onto sepiolite from aqueous solutions

2006 ◽  
Vol 124 (1-3) ◽  
pp. 89-101 ◽  
Author(s):  
Mehmet Doğan ◽  
Mahir Alkan ◽  
Özkan Demirbaş ◽  
Yasemin Özdemir ◽  
Cengiz Özmetin
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Kinetics Of

Adsorption Kinetics of Methylene Blue from Aqueous Solutions onto Palygorskite

2010 ◽  
Vol 80 (2) ◽  
pp. 236-242 ◽  
Author(s):  
PENG Shuchuan ◽  
WANG Shisheng ◽  
CHEN Tianhu ◽  
JIANG Shaotong ◽  
HUANG Chuanhui
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Kinetics Of

Adsorption Kinetics of Zn(II) from Aqueous Solutions onto Epichlorohydrin Crosslinked Chitosan

2012 ◽  
Vol 463-464 ◽  
pp. 7-11 ◽  
Author(s):  
Ming Yan Dang ◽  
Hong Min Guo ◽  
Yan Kun Tan
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Ph Value ◽  
Crosslinking Agent ◽  
Second Order ◽  
Order Model ◽  
Pseudo Second Order ◽  
Crosslinked Chitosan ◽  
Kinetics Of ◽  
Second Order Model

Chitosan was crosslinked using epichlorohydrin as crosslinking agent to prepare crosslinked chitosan which was used as an adsorbent for the removal of Zn(II) from aqueous solutions. The adsorption prosperities of Zn(II) on crosslinked chitosan were studied, including the influence of pH value and the adsorption kinetics. The kinetics of adsorption was discussed using two kinetic models, the pseudo first-order and the pseudo second-order model. Results reveal that the crosslinked chitosan is suitable as adsorbent to remove Zn(II) from dilute solution. The rate parameters for the Zn(II) by crosslinked chitosan were also determined. It was shown that the adsorption kinetics of Zn(II) could be best described by the pseudo second-order model and the adsorption process may involve a physical adsorption.

scholarly journals Influence of Ph on Adsorption Kinetics of Monochlorophenols From Aqueous Solutions on Granular Activated Carbon / Wpływ Ph Na Kinetykę Adsorpcji Monochlorofenoli Z Roztworów Wodnych Na Granulowanym Węglu Aktywnym

2015 ◽  
Vol 22 (1) ◽  
pp. 95-105 ◽  
Author(s):  
Krzysztof Kuśmierek ◽  
Andrzej Świątkowski
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Adsorption Kinetics ◽  
Granular Activated Carbon ◽  
Pka Values ◽  
Ph Values ◽  
Experimental Parameters ◽  
Acid And Base ◽  
Influence Of Ph ◽  
Kinetics Of

Abstract Adsorptive removal of 2-, 3- and 4-chlorophenol from aqueous solutions by granular activated carbon was studied. The influence of different experimental parameters like initial concentration, carbon dosage and pH on the adsorption of monochlorophenols were evaluated. The influence of type of acid and base used for water acidification or alkalization was also tested. The results indicate that acidic pH is favorable for the adsorption of chlorophenols; however the type of acid or alkali used for the change of pH has a little influence and did not significantly affect the adsorption efficiency. The pH played an important role in the adsorption kinetics of chlorophenols at pH values above the pKa values of the compounds, while little influence on adsorption rate was observed if pH was decreased below the pKa values

Adorption and Kinetics Studies of Baritite on Cr (VI) from Aqueous Solutions

2011 ◽  
Vol 347-353 ◽  
pp. 281-284
Author(s):  
Peng Ge ◽  
Li Juan Wan ◽  
Ya Jing Xu
Keyword(s):  
Experimental Data ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Adsorption Kinetics ◽  
Natural Zeolite ◽  
Second Order ◽  
Order Model ◽  
Kinetics Studies ◽  
Pseudo Second Order ◽  
Kinetics Of

Among the investigated clays and minerals (kaolinite, natural zeolite, manual zeolite, bentonite, sepiolite, sepiolite amianthus, tremolite amianthus, vermiculite and baritite), the baritite clay was selected as the optimal adsorbent for aqueous Cr (VI). The Cr (VI) adsorption capacity on baritite clay reached as high as 39.01 mg∙g−1 at 20°C. Then the adsorption kinetics of Cr (VI) by the baritite clay were investigated in details. Results showed that the pseudo-second-order model was a suitable description for the adsorption kinetics and fitted well with the experimental data.

Sign in / Sign up

Export Citation Format

Share Document