1974
DOI: 10.1016/0021-9797(74)90253-7
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A general treatment and classification of the solute adsorption isotherm part. II. Experimental interpretation

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Cited by 499 publications
(195 citation statements)
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“…In the S curves of the Giles classification system, the initial direction of the curvature shows that the adsorption is easier as the concentration rises. In practice, the S curve usually appear when three conditions are fulfilled: the solute molecule (a) is monofunctional, (b) has moderate intermolecular attraction, causing it to pack vertically in regular array in the adsorbed layer, and (c) meets strong competition, for substrate sites, from molecules of the solvent or of another absorbed species (Giles et al, 1960(Giles et al, , 1974.…”
Section: Adsorption Of Nicotine Onto Aam/ma Hydrogelmentioning
confidence: 99%
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“…In the S curves of the Giles classification system, the initial direction of the curvature shows that the adsorption is easier as the concentration rises. In practice, the S curve usually appear when three conditions are fulfilled: the solute molecule (a) is monofunctional, (b) has moderate intermolecular attraction, causing it to pack vertically in regular array in the adsorbed layer, and (c) meets strong competition, for substrate sites, from molecules of the solvent or of another absorbed species (Giles et al, 1960(Giles et al, , 1974.…”
Section: Adsorption Of Nicotine Onto Aam/ma Hydrogelmentioning
confidence: 99%
“…Once, the hydrogel is covered with a layer of adsorbed water; however, the adsorbent-adsorbate interaction would be virtually reduced to the weak dispersion energy of water with dyes, so that a S-type isotherm should result. In system that gives rise to an S-type isotherm, however, the multilayer is being built up on some parts of the surface whilst the monolayer is still incomplete on other parts (Giles et al, 1960(Giles et al, , 1974.…”
Section: Adsorption Of Nicotine Onto Aam/ma Hydrogelmentioning
confidence: 99%
“…Giles [25] је класификовао адсорпционе изотерме на основу њиховог иницијалног нагиба и облика. Све адсорпционе изотерме се могу поделити, према свом иницијалном нагибу на четири основне класе, S класу, код које је карактеристична вертикална оријентација адсорбованих молекула на површину, L класу (од "Langmuir"), код које се молекули равно адсорбују на површину или су понекад у питању адсорбовани јони са јаким интеракцијама, H ("high affinity") класа код које адсорбат има јак афинитет према адсорбенту и C класа ("constant partition") која има линеаран облик, при чему адсорбат дубоко продире у чврсти адсорбент.…”
Section: Giles-ова класификација адсорпционих изотермиunclassified
“…На пример, при адсорпцији p-нитрофенола из раствора бенезена на SiO2 добија се изотерма L типа. Ако су у бензену присутни трагови воде, молекули воде конкуришу са молекулима p-нитрофенола за расположиве адсорпционе центре и то смањује адсорпцију p-нитрофенола и L изотерма прелази у S изотерму [25].…”
Section: S изотермаunclassified
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