Zirconia-based nanomaterials as adsorbents.

Adsorption activity	Zirconia nanomaterial type	Experimental conditions (temperature, pH, and equilibrium time)	Adsorption capacity	Isotherm	Ref.
Tetracycline from wastewater	ZrO2	–, 6, 15 min	526.32 mg g−1	Langmuir isotherm	66
Phosphate in treated wastewater	PANI-ZrO2	–, 25 °C, 6.9, –	32.4 mg g−1	Langmuir isotherm	106
Phospholipid adsorption from jatropha oil used for biofuel	ZrO2	—	13.92 mg g−1	Langmuir isotherm	77
Adsorption of methylene blue and tetracycline hydrochloride from water	UiO-66-(OH)2/graphene oxide (GO)	298 K, 9, –	99.96% and 94.88%, respectively	Langmuir, Freundlich, Sips isotherm	116
Adsorption of arsenic(iii) from the water	Ceria incorporated zirconia nanocomposites	303 K, 7.0, –	17.07 mg g−1	Langmuir isotherm	115
Adsorption of chromium and dyes RB-21, RR-141, and Rh-6 G	Chitosan-zirconium phosphate nanostructures	303 K, –, –	311.53 mg g−1, 457 mg g−1, 435.1 mg g−1 and 438.596 mg g−1 respectively	Langmuir isotherm	117
Adsorption of vanadium ion	CNZ@NCT/Zr	298 K, <5, –	277.75 mg g−1	Langmuir isotherm	118
Adsorption of phosphate from water	ZrO2/Fe3O4	–, neutral, –	29.5 mg g−1	Langmuir isotherm	119
Adsorption of norfloxacin in water	UiO-66-NH2	298 K, 6–8.5, 6 h	222.5 mg g−1	Langmuir isotherm	120
Adsorption of toxic arsenite (As(iii)) and arsenate (As(v)) from aqueous solutions	Mesoporous zirconia nanostructure	–, neutral, –	105.03 and 110.29 mg g−1, respectively	Langmuir isotherm	121