Table 3. Relative adsorbed amounts of three PPCPs over the three MOFs (MIL-101, MIL-101-OH and MIL-101-(OH)₂) after 12 h of adsorption (q_12 h).

PPCP (number/status of O species)	Functional group of PPCP*	MIL-101	MIL-101-OH	MIL-101-(OH)2
Naproxen (2O, 1O−)	-COO−, -O-	100	238	397
Ibuprofen (1O, 1O−)	-COO−	100	181	241
Oxybenzone (3O)	-OH, =O, -O-	100	216	341

^*At the condition of adsorption (pH: 5.4).

The q_12 h values are based on unit surface area and the q_12 h of MIL-101 was set 100 to check easily the effect of –OH of MOFs on the adsorbed amounts.