Definition of adsorb in English:

adsorb

verb

[WITH OBJECT]Chemistry
  • (of a solid) hold (molecules of a gas or liquid or solute) as a thin film on the outside surface or on internal surfaces within the material.

    ‘the dye is adsorbed on to the fibre’
    • ‘This is because a certain number of molecules are needed to adsorb at the surface to affect the surface tension.’
    • ‘In the open atmosphere many solid materials are covered by a layer of molecules adsorbed from the gas.’
    • ‘In typical experiments, these condensates are adsorbed to surfaces.’
    • ‘These species may be metal ions, surface defects, or adsorbed molecules or ions with one or more unpaired electrons.’
    • ‘The pretreatment by transition metal cations helps to adsorb DNA on mica because it neutralizes the mica surface charge and then weakens the repulsive pressure.’
    • ‘This should not be taken to mean that the steel surface must be awash in water; a very thin adsorbed film of water is all that is required.’
    • ‘The catalyst adsorbs both the carbon compound and the hydrogen gas on its surface, in such a way that the molecules are arranged in just the right position for addition to occur.’
    • ‘The solute is generally a charged ion which can be adsorbed to the surface, absorbed into the surface, or undergo ion exchange with ions in the mineral.’
    • ‘During this time the dissolved protein molecules are spontaneously adsorbed on the quartz surface.’
    • ‘Thus, the adsorption and affinity of each protein studied should be quite different when they are adsorbed on a hydrophobic surface.’
    • ‘It has also shed light on how the rhodium metal surface adsorbs and removes carbon monoxide and nitrogen oxide gases in car exhaust converters.’
    • ‘Very fine particles adsorb toxic gases and liquids onto their surfaces.’
    • ‘Second, the system will not work for materials that are strongly adsorbed by, or react with, the system components.’
    • ‘Each type of material will move down the column at a different rate, depending on the its solubility and its tendency to be adsorbed.’
    • ‘In nuclear reactors, control rods adsorb atomic particles and control the power of the reactor.’
    • ‘However, the addition of solid phosphate was not used in subsequent experiments in view of the tendency of flavonoids to adsorb onto solid surfaces.’
    • ‘He experimented by exposing paraffin wax to crushed Salvia leaves and found the solid wax readily adsorbed the volatile terpenes from the air.’
    • ‘This procedure leaves for measurements only these molecules that are strongly adsorbed to the glass surface.’
    • ‘A hydrophilic ion which adsorbs effectively to the surface of the bilayer must necessarily shed its water.’
    • ‘This is most likely to be due to variation in Fe distribution within and adsorbed by plant tissues, and it was particularly evident in the root samples.’

Origin

Late 19th century: blend of ad- (expressing adherence) + absorb.

Pronunciation

adsorb

/ədˈsɔːb//ədˈzɔːb/