Table 1.

The application of COMs in water treatment.

Materials	Application	Performance	Ref.
CF@TpTph	Removal of Cd2+	84.1 mg/g	[91]
TFN HF NF membrane	Heavy metal separation	95.4% for Cr2(SO4)3 94.3% for CuSO4 91.7% for ZnSO4 90.9% for MnSO4	[89]
	Dye solution separation	98.7% for rose bengal 97.2% for coomassie brilliant blue; 93.5% for indigo carmine 90.8% for safranine T
TpPa-SO3Na	Dye separation	96% for cationic dyes	[93]
TpTAPA/HPAN	Dye separation	>92.0%	[92]
TAPB-PDA COF pellet	Dye separation	100% for rhodamine B	[94]
TPB-DMTP-COF	Iodine adsorption	6.37 g/g	[37]
[NH4]+[COFSO3−]/SPES MMMs	Uranium extraction	99.4 mg/g	[95]
TaPa-SO3H nanosheets	Seawater desalination	rejection of NaCl 99.91%, water flux of 267 kg/(m2·h)	[41]
TpHz	Desalination	Na2SO4 rejection of 58.3% water permeance of 40.5 L/(m2·h·MPa)	[66]
COF@SSN	Oil–water separation	99.5%, permeation flux of 2.84 ​× ​105 L/(m2·h)	[49]

CF, carbon fiber; DMTP, dimethoxyterephthaldehyde; HPAN, hydrolyzed polyacrylonitrile; MMMs, mixed matrix membranes; SPES, sulfonated-polyethersulfone; TAPA, tris(4-aminophenyl)amine; TAPB, 1,3,5-tris(4-aminophenyl)benzene; TFN HF NF, thin film nanocomposite hollow fiber nanofiltration; Tp, 1,3,5-triformylphloroglucinol; TPB, triphenylbenzene.