different between photodesorption vs photoadsorption

English

photo- +? desorption

photodesorption (plural photodesorptions)

(physics, chemistry) An increase in the desorption of a substance from an interface in the presence of light.

photo- +? adsorption

photoadsorption (countable and uncountable, plural photoadsorptions)

(physics, chemistry) An increase in the adsorption of a substance at an interface in the presence of light.

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