scholarly journals Adsorption Behavior of Metal Ions with ^|^beta;-Diketone Type Chelating Agents Supported on Hydrophobized Mesoporous Silicate MCM-41

2014 ◽  
Vol 25 (4) ◽  
pp. 130-135 ◽  
Author(s):  
Syunichi OSHIMA ◽  
Yusuke KUMAGAI ◽  
Yujiro WATANABE ◽  
Kaoru FUJINAGA ◽  
Geoffrey W. STEVENS ◽  
...  
Keyword(s):  
Metal Ions ◽  
Chelating Agents ◽  
Adsorption Behavior ◽  
Mesoporous Silicate ◽  
Mcm 41

scholarly journals Adsorption Behavior of Divalent Metal Ions onto Surface-functionalized Mesoporous Silicate MCM-41 Having Schiff Base Structure

2020 ◽  
Author(s):  
Syunichi OSHIMA ◽  
Hidekazu OHINATA ◽  
Takushi MATSUNO ◽  
Kenta TAKASAWA ◽  
Yujiro WATANABE ◽  
...  
Keyword(s):  
Schiff Base ◽  
Metal Ions ◽  
Divalent Metal ◽  
Adsorption Behavior ◽  
Divalent Metal Ions ◽  
Mesoporous Silicate ◽  
Mcm 41 ◽  
Base Structure

Modified Mesoporous Silicate MCM-41 for Zinc Ion Adsorption: Synthesis, Characterization and Its Adsorption Behavior

2009 ◽  
Vol 27 (11) ◽  
pp. 2171-2174 ◽  
Author(s):  
Hamid Sepehrian ◽  
Syed Waqif-husain ◽  
Farrokh Rakhshanderu ◽  
Leila Kamel
Keyword(s):  
Zinc Ion ◽  
Adsorption Behavior ◽  
Ion Adsorption ◽  
Mesoporous Silicate ◽  
Mcm 41

Adsorption Behavior of Cadmium(II) and Lead(II) on Mesoporous Silicate MCM‐41

2006 ◽  
Vol 41 (8) ◽  
pp. 1635-1643 ◽  
Author(s):  
Syunichi Oshima ◽  
Jilska M. Perera ◽  
Kathy A. Northcott ◽  
Hisao Kokusen ◽  
Geoffrey W. Stevens ◽  
...  
Keyword(s):  
Adsorption Behavior ◽  
Mesoporous Silicate ◽  
Mcm 41

scholarly journals Primary Study on Capturing Behavior for Transition Metal Ions on Mesoporous Silicate (MCM-41)

2003 ◽  
Vol 14 (Supplement) ◽  
pp. 173-176 ◽  
Author(s):  
Akiko HOKURA ◽  
Izumi NAKAI ◽  
Hirohisa YAMADA ◽  
Andrea J. O'CONNOR ◽  
Jilska M. PERERA ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Transition Metal Ions ◽  
Primary Study ◽  
Mesoporous Silicate ◽  
Mcm 41

Study on desorption of Mn, Fe, and Mg from TMP and evaluation of the complexing strength of different chelating agents using side reaction coefficients 10th EWLP, Stockholm, Sweden, August 25–28, 2008

Holzforschung ◽  
2009 ◽  
Vol 63 (6) ◽  
Author(s):  
Kim Granholm ◽  
Pingping Su ◽  
Leo Harju ◽  
Ari Ivaska
Keyword(s):  
Citric Acid ◽  
Metal Ions ◽  
Chelating Agents ◽  
Side Reaction ◽  
Sodium Dithionite ◽  
Thermomechanical Pulp ◽  
Peroxide Bleaching ◽  
Ph Values ◽  
Reducing Environment ◽  
Ph Range

Abstract Chelation of thermomechanical pulp (TMP) was studied in this work. The desorption of Mn, Fe, and Mg due to their impact on peroxide bleaching was investigated. The desorption experiments were performed with EDTA, citric acid, oxalic acid, and formic acid as chelating agents at different pH. Chelation experiments with EDTA were carried out at pH 3–11. Sodium dithionite was used as the reducing agent in studying chelation with EDTA in a reducing environment. Mn was very effectively desorbed with EDTA from TMP at pH <10 and the reducing environment further improved the removal of all the studied metal ions from TMP with EDTA. Citric acid also removed Mn effectively from TMP at pH 5. The thermodynamic stability constants of different metal chelates do not present the correct picture of how strongly the metal ions are bound by the chelating agents in different conditions. But by means of the side reaction coefficients (α M(L)-coefficients) it is also theoretically possible to evaluate and compare the real binding strengths between the metal ions and different chelating agents at varying pH values and other solution conditions. In this study, a theory is given for the calculation of side reaction coefficients. Values of the α M(L)-coefficients, for the pH range 0–14, are presented for EDTA, DTPA, and also for some other new potential environmentally friendly chelating agents.

Competition between Cd(II) and other divalent transition metal ions during complex formation with amino acids, peptides, and chelating agents

2016 ◽  
Vol 327-328 ◽  
pp. 55-69 ◽  
Author(s):  
Maurizio Remelli ◽  
Valeria M. Nurchi ◽  
Joanna I. Lachowicz ◽  
Serenella Medici ◽  
M. Antonietta Zoroddu ◽  
...  
Keyword(s):  
Amino Acids ◽  
Complex Formation ◽  
Transition Metal ◽  
Metal Ions ◽  
Chelating Agents ◽  
Transition Metal Ions
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