Assertion: gallic acid's group | /r/HasAspect | intensive absorption band
Facets:
value: due to the presence of moisture
type: CAUSE
value: between 3200
type: LOCATION
value: between 3700
type: LOCATION
Source sentences:
text: Hydroxyl (OH) groups have an intensive absorption band between 3200 and 3700 cm−1, due to the presence of moisture intercalated within hydrophilic GO sheets30.