Results 251 to 260 of about 182,450 (308)
Effective extraction and determination of 9 β-lactams in water and milk samples by a novel magnetic covalent organic framework combined with UPLC-MS/MS. [PDF]
RSC AdvLi L +7 more
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Removal of Sr (II) from aqueous solutions by adsorption using amberlite XAD-7 resin impregnated with TOPO extractant. [PDF]
Sci RepKhani MH, Khamseh AAG.
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ChemPhysChem, 2015
AbstractA qualitative interpretation is proposed to interpret isosteric heats of adsorption by considering contributions from three general classes of interaction energy: fluid–fluid heat, fluid–solid heat, and fluid—high‐energy site (HES) heat. Multiple temperature adsorption isotherms are defined for nitrogen, T=(75, 77, 79) K, argon at T=(85, 87, 89)
S. Hadi Madani +3 more
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AbstractA qualitative interpretation is proposed to interpret isosteric heats of adsorption by considering contributions from three general classes of interaction energy: fluid–fluid heat, fluid–solid heat, and fluid—high‐energy site (HES) heat. Multiple temperature adsorption isotherms are defined for nitrogen, T=(75, 77, 79) K, argon at T=(85, 87, 89)
S. Hadi Madani +3 more
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Spectrochimica Acta Part A: Molecular Spectroscopy, 1987
Abstract CO is adsorbed at 298 K only on the (0001) faces of polycrystaltine αCr 2 0 3 with the appearance of a single i.r. peak whose frequency shifts from 2185 (θ ≈ 0) to 2170 cm -1 (θ max ). This shift is due to the building up of adsorbate-adsorbate interactions (dynamic and static). The dipole--dipole (dynamic) interaction has been measured by
SCARANO, Domenica, A. Zecchina
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Abstract CO is adsorbed at 298 K only on the (0001) faces of polycrystaltine αCr 2 0 3 with the appearance of a single i.r. peak whose frequency shifts from 2185 (θ ≈ 0) to 2170 cm -1 (θ max ). This shift is due to the building up of adsorbate-adsorbate interactions (dynamic and static). The dipole--dipole (dynamic) interaction has been measured by
SCARANO, Domenica, A. Zecchina
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Quantitative Determination of Adsorbate-Adsorbate Interactions
Physical Review Letters, 1999A new concept called configuration distribution analysis is introduced to extract quantitative information on adsorbate-adsorbate interactions from high-resolution scanning tunneling microscopy data. From atom-resolved nitrogen island configurations on an Fe(100) surface we show that the propensity to form small, compact $c(2\ifmmode\times\else ...
Österlund, L. +4 more
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Progress in Surface Science, 1994
Abstract We investigated the chemisorption of Na and K alkali-metal atoms on the Al(111) surface from very low coverages (Θ = 1 16 ) up to full a monolayer. The calculations predict site and bond-length changes of the adsorbate atoms, as well as a condensation into islands with increasing coverage. Some processes are activated which implies
Neugebauer, J., Scheffler, M.
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Abstract We investigated the chemisorption of Na and K alkali-metal atoms on the Al(111) surface from very low coverages (Θ = 1 16 ) up to full a monolayer. The calculations predict site and bond-length changes of the adsorbate atoms, as well as a condensation into islands with increasing coverage. Some processes are activated which implies
Neugebauer, J., Scheffler, M.
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Adsorbate-adsorbate association on a homogenous surface of a nonspecific adsorbent
Journal of Colloid and Interface Science, 1972Abstract Various methods for calculating the degree of association of molecules adsorbed on a homogeneous surface of an adsorbent have been examined. Equations for the isotherms and heats of adsorption and heat capacity of the adsorbate have been derived using a model of chain association of the molecules parallel to the surface in the first layer ...
G.I Berezin, A.V Kiselev
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Canadian Journal of Research, 1948
The apparent density of the adsorbate and the adsorption isotherm have been measured in the systems carbon tetrachloride – charcoal and diethyl ether – charcoal. In both, the apparent density of the adsorbate is lower than the normal liquid density. These abnormally low values cannot be explained on the basis of the coexistence of 'vapor' and 'liquid'
N G M, TUCK, R L, McINTOSH, O, MAASS
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The apparent density of the adsorbate and the adsorption isotherm have been measured in the systems carbon tetrachloride – charcoal and diethyl ether – charcoal. In both, the apparent density of the adsorbate is lower than the normal liquid density. These abnormally low values cannot be explained on the basis of the coexistence of 'vapor' and 'liquid'
N G M, TUCK, R L, McINTOSH, O, MAASS
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Environmental Pollution, 2016
Adsorption is an efficient method for removal of pharmaceuticals and personal care products (PPCPs). Magnetic resins are efficient adsorbents for water treatment and exhibit potential for PPCP removal. In this study, the magnetic hypercrosslinked resin Q100 was used for adsorption of PPCPs.
Zengyin, Zhu +4 more
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Adsorption is an efficient method for removal of pharmaceuticals and personal care products (PPCPs). Magnetic resins are efficient adsorbents for water treatment and exhibit potential for PPCP removal. In this study, the magnetic hypercrosslinked resin Q100 was used for adsorption of PPCPs.
Zengyin, Zhu +4 more
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Adsorbate–surface and adsorbate–adsorbate interactions and their role in surface reactions
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 1985By studying trends in the interaction energies of atoms and molecules with metal surfaces as the metal is changed or the surface is modified by adsorbed impurities, two important surface properties affecting the adsorption or catalytic activity have been uncovered.
J. K. No/rskov, S. Holloway, N. D. Lang
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