Anion Adsorption and clay-like swelling of Ti3C2Tz MXene multilayers

2021 ◽  
Author(s):  
Cooper Augustus Voigt
Keyword(s):  
Anion Adsorption

Impedance aspects of anion adsorption on gold single crystal electrodes

1996 ◽  
Vol 414 (2) ◽  
pp. 209-220 ◽  
Author(s):  
Tamás Pajkossy ◽  
Thomas Wandlowski ◽  
Dieter M. Kolb
Keyword(s):  
Single Crystal ◽  
Anion Adsorption

Self-assembly of Pd4L2 Supramolecular Cage and Permanganate Anion Adsorption Behavior in Water

2021 ◽  
Author(s):  
Bang-Lian Xia ◽  
Zhan-Peng Jiang ◽  
Ya-Hui Xuan ◽  
Ping Shang ◽  
Jia-Jun Zhu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Adsorption Behavior ◽  
Anion Adsorption

scholarly journals Solid Acids from Persulphated and Perchlorated Physical Mixtures of Zirconium and Titanium Hydroxides

2002 ◽  
Vol 20 (10) ◽  
pp. 977-993
Author(s):  
Gamal M.S. El Shafei ◽  
Christine A. Philip
Keyword(s):  
Tetragonal Phase ◽  
Anatase Phase ◽  
Nitrogen Adsorption ◽  
Rutile Phase ◽  
Acid Sites ◽  
Solid Acids ◽  
Monoclinic Zirconia ◽  
Anion Adsorption ◽  
Physical Mixtures ◽  
Structural Aspects

Calcination at 650°C of a physical mixture of zirconium and titanium hydroxides led to the formation of the corresponding oxides, monoclinic zirconia and anatase. The adsorption of perchlorate or persulphate anions (as 0.05, 0.1, 0.2 or 0.4 M aqueous solutions) before calcination did not inhibit crystallization; however, perchlorate anions activated the formation of rutile in addition to the predominant anatase phase. Indeed, the adsorption of perchlorated anions prior to calcination allowed the thermodynamically less stable tetragonal phase of zirconia to be detected in addition to monoclinic zirconia at ambient temperature. In contrast, the adsorption of persulphate anions before calcination stabilized the tetragonal phase with no rutile phase being detected in this case. Infrared spectroscopy showed that adsorbed S2O82– anions were held more strongly by the solid than ClO4− anions which tended to decompose when the solid was calcined. The acidities of the solid acids produced because of S2O82– or ClO4−anion adsorption were studied via the adsorption of pyridine (pKa = 5.3) from cyclohexane solution. The amounts and strengths of the acid sites formed during persulphate treatment were higher than those resulting from perchlorate adsorption. The strength of the acid sites formed on samples calcined before loading with S2O82– or ClO4− anions showed no significant differences. Variations detected in the structural aspects arising from S2O82– or ClO4− anion adsorption were reflected in the texture as assessed by nitrogen adsorption at −196°C.

Changes in Isoelectric Point as Affected by Anion Adsorption on Two Brazilian Oxisols

2006 ◽  
Vol 37 (9-10) ◽  
pp. 1357-1366 ◽  
Author(s):  
G. Marchi ◽  
L. R. G. Guilherme ◽  
A. C. Chang ◽  
N. Curi ◽  
M. C. Guerreiro
Keyword(s):  
Isoelectric Point ◽  
Anion Adsorption

Determination of Anion Adsorption by Clays

1963 ◽  
Vol 27 (6) ◽  
pp. 636-640 ◽  
Author(s):  
F. A. M. de Haan ◽  
G. H. Bolt
Keyword(s):  
Anion Adsorption
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