adsorbent vs adsorbent material

adsorbent and adsorbent material both are nouns.

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

As nouns, adsorbent and adsorbent material are synonyms defined as:

adsorbent and adsorbent material: a material having capacity or tendency to adsorb another substance

adsorbent (noun)	adsorbent material (noun)
a material having capacity or tendency to adsorb another substance	a material having capacity or tendency to adsorb another substance

adsorbent (adjective)	adsorbent material (adjective)
having capacity or tendency to adsorb or cause to accumulate on a surface