Heat of immersion of zinc oxide in organic liquids. 3. Immersion in benzene, toluene, and chlorobenzene

1985 ◽  
Vol 89 (22) ◽  
pp. 4881-4883 ◽  
Author(s):  
Tetsuo Morimoto ◽  
Mahiko Nagao ◽  
Yasuharu Suda
Keyword(s):  
Zinc Oxide ◽  
Organic Liquids ◽  
Heat Of Immersion ◽  
Benzene Toluene

Polymer composites as sensing materials for liquid organic solvents – preliminary results

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Stanislaw Frackowiak ◽  
Monika Maciejewska ◽  
Andrzej Szczurek ◽  
Marek Kozlowski
Keyword(s):  
Electrical Resistivity ◽  
Carbon Black ◽  
Polymer Composites ◽  
Percolation Theory ◽  
Liquid Mixtures ◽  
Organic Liquids ◽  
Volumetric Fraction ◽  
Factors Influencing ◽  
Benzene Toluene ◽  
Main Factors

AbstractCarbon black-filled polymer composites were investigated as sensing materials for organic liquids. Polypropylene and polystyrene which were selected as matrices and various amounts of carbon black were considered as the main factors influencing sensitivity of the composites in view of the percolation theory. Disposable filaments were produced of these materials. Change in their electrical resistivity was measured upon immersion in benzene, toluene, xylene, ethylbenzene and their mixtures. It has been found that studied materials were sensitive to the composition of liquid mixtures of organic solvent. Relationships between the filament response and volumetric fraction of the components were presented. The studied materials have shown promising sensing properties, which suggest their applicability for identification and quantification of multicomponent organic liquids.

Catalytic oxidation of benzene, toluene and p-xylene over colloidal gold supported on zinc oxide catalyst

2011 ◽  
Vol 12 (10) ◽  
pp. 859-865 ◽  
Author(s):  
Hongjing Wu ◽  
Liuding Wang ◽  
Jiaoqiang Zhang ◽  
Zhongyuan Shen ◽  
Jinghui Zhao
Keyword(s):  
Zinc Oxide ◽  
Catalytic Oxidation ◽  
Colloidal Gold ◽  
Oxide Catalyst ◽  
Benzene Toluene ◽  
Oxidation Of Benzene

The Swelling of Latex

1930 ◽  
Vol 3 (3) ◽  
pp. 361-369
Author(s):  
F. Evers
Keyword(s):  
Boundary Layer ◽  
Aromatic Hydrocarbons ◽  
Great Increase ◽  
The Other ◽  
Organic Liquids ◽  
Brownian Movement ◽  
Ammonia Content ◽  
Latex Particles ◽  
Benzene Toluene ◽  
The Individual

Abstract The swelling phenomena of latex in organic liquids such as benzene, toluene, or xylene were studied. As factors in the swelling power the following were observed: (1) the ammonia content of the latex; (2) the formation of a boundary layer in the surface of contact of both liquids. Ammonia-rich latex on contact with aromatic hydrocarbons forms a boundary layer which in turn swells, with a great increase in volume. Latex poor in ammonia forms no boundary layer and therefore does not swell. On the other hand, the hydrocarbon may diffuse into the latex without disturbing the Brownian movement. Subsequently the diffused hydrocarbon is able to bring about the swelling of the individual latex particles.

INTERACTION ENERGIES OF ORGANIC MOLECULES WITH RUTILE AND GRAPHON SURFACES FROM HEATS OF IMMERSION

1955 ◽  
Vol 33 (2) ◽  
pp. 251-258 ◽  
Author(s):  
J. J. Chessick ◽  
A. C. Zettlemoyer ◽  
F. H. Healey ◽  
G. J. Young
Keyword(s):  
Dipole Moment ◽  
Adsorption Energy ◽  
Organic Molecules ◽  
Average Distance ◽  
Van Der Waals ◽  
Surface Force ◽  
Organic Liquids ◽  
Heat Of Immersion ◽  
Heats Of Immersion ◽  
Wetting Liquid

The heats of immersion of rutile in a series of short chain organic liquids are found experimentally to be an approximate linear function of the dipole moment of the wetting liquid. The significance of the relation is discussed in terms of the polar van der Waals force contribution which is primarily dependent on dipole moment. The average distance of approach of a dipole to the rutile surface and the effective surface force field extending from the rutile surface are calculated.The net adsorption energy, which is calculated directly from heat of immersion data, is related to the energy contributions resulting from the various polar and nonpolar van der Waals forces active in the adsorption process: These energy contributions which make up the total adsorption energy are calculated for the interaction of an alcohol and a hydrocarbon with both a heteropolar (rutile) and a homopolar (Graphon) surface. On the basis of the results obtained, the effects of chain length and functionality of the liquids on the heat of immersion are discussed.

scholarly journals Heat of Immersion of Zinc Oxide

1970 ◽  
Vol 12 ◽  
pp. 142-145
Author(s):  
Toshio Sakurai ◽  
Heihachiro Okabe ◽  
Takeshi Isoda
Keyword(s):  
Zinc Oxide ◽  
Heat Of Immersion

scholarly journals Synthesis, Characterization and Application of Carbon Nanotubes Decorated with Zinc Oxide Nanoparticles for Removal of Benzene, Toluene and p-Xylene from Aqueous Solution

2021 ◽  
Vol 13 (21) ◽  
pp. 11716
Author(s):  
Basim Ahmed Abussaud
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Nitrogen Adsorption ◽  
Batch Adsorption ◽  
Oxide Nanoparticles ◽  
X Ray ◽  
Impregnation Technique ◽  
Benzene Toluene ◽  
Adsorption Desorption

The removal of benzene, toluene and p-xylene (BTX) from water is necessary to avoid various health and environmental concerns. Among various techniques, adsorption is suitable and widely used for the removal of BTX from water. In this study, the adsorption of BTX from water was performed using carbon nanotubes that were impregnated with zinc oxide nanoparticles. The impregnation was performed using the wet impregnation technique. The synthesized materials were characterized using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), X-ray diffraction (XRD) spectroscopy, thermogravimetric analysis (TGA) and nitrogen adsorption–desorption analysis. In batch adsorption experiments, the effect of adsorbent dosage, initial concentration, and contact time were investigated. The percentage removal for a given time and dosage was in the order of p-xylene > toluene > benzene. The kinetics models’ fitting revealed that the pseudo-second-order model fits well the adsorption of benzene, toluene and p-xylene with R2 > 99.4%. The results of adsorption isotherm fitting revealed the best fit with Sips isotherm model (R2 > 99.7%) and the adsorption capacity was p-xylene: 125 mg/g > toluene:105 mg/g > benzene: 70 mg/g. This behavior is observed probably due to a decrease in solubility and an increase in the molecular weight of BTX.

scholarly journals The heat of immersion of zinc oxide in water

1968 ◽  
Vol 226 (2) ◽  
pp. 188-188
Author(s):  
T. Morimoto ◽  
M. Nagao ◽  
M. Hirata
Keyword(s):  
Zinc Oxide ◽  
Heat Of Immersion
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