adsorbent material vs sorbent

adsorbent material and sorbent both are nouns.

Word	Noun	Adjective	Verb	Adverb
adsorbent material	Yes	No	No	No
sorbent	Yes	No	No	No

As nouns, sorbent is a hypernym of adsorbent material; that is, sorbent is a word with a broader meaning than adsorbent material:

adsorbent material: a material having capacity or tendency to adsorb another substance
sorbent: a material that sorbs another substance; i.e. that has the capacity or tendency to take it up by either absorption or adsorption

Other hypernyms of adsorbent material include sorbent material.

adsorbent material (noun)	sorbent (noun)
a material having capacity or tendency to adsorb another substance	a material that sorbs another substance; i.e. that has the capacity or tendency to take it up by either absorption or adsorption