Table 2.

The hazardous metal ion detection ability and detection mechanisms of various LMOF-based sensors.

Entries	Analyte	MOF	Detection Limit	Detection Mechanism	Refs
Entry 1	Pb2+	[Tb(L)(H2O)5]n	10−7 M	QD	[70]
		{[Cd(BIPA)(IPA)]·DMF}n	7.5 × 10−7 M	QD	[71]
		{[Cd(BIPA)(HIPA)]·DMF}n	5.0 × 10−7 M
		Zn-TCPP-MOF	4.99 × 10−8 M	-	[73]
		SO3H-UiO-66(Zr)	25.2 ppm	QD	[74]
	Hg2+	UiO-66@butyne	10.9 nmol/L	QD	[79]
		NH2-MIL-53(Al)	0.15 μM	QD	[80]
		Zn2(NDC)2(DPTTZ)	-	FRET	[81]
		[Ni3(BTC)2(H2O)3]·(DMF)3(H2O)3	0.02 μM	QD	[83]
	Cd2+	Zr-based LMOF	0.002 μM	PET	[85]
		[Zn2(tdca)2(bppd)2]·2DMF	0.132 μM	PET	[86]
Entry 2	UO22+	Tb-MOF	0.9 μg/L	PET	[89]
		[Eu2(MTBC)(OH)2(DMF)3(H2O)4]·2DMF· 7H2O	309.2 μg/L	PET	[90]
		(CH3)2NH2[Ln2(BTC)(AC)3(FM)]	4.12 μM	QD	[91]
		[M(HBTC)(BMIOPE)·DMF·H2O]n	2.47 × 10−5 M	FRET	[93]
		Cd-MOF	8.5 μg/L	PET	[94]
	Th4+	[Eu2(FDC)3(DMA)2]·4H2O	3.49 × 10−5 mol/L	PET FRET	[95]
		[Ln2(NH2-BDC)2.5(CH3COO)(DMA)(H2O)]·DMA	3.40 μM	QD	[96]
	99TcO4−	[1H6(ReO4)](CF3-SO3)5·7H2O	-	PET	[97]
		Cd(II)-MOFs	0.68 × 104 M−1	-	[98]
	ReO4−	[Zr6O4(OH)4(NH3+-BDC)6]Cl6·xH2O (MOR-1)	0.36 ppm	PET	[99]
		H16[Zr6O16(H2PATP)4]Cl8·xH2O (MOR-2)	0.20 ppm
		[Ag(1,2,4,5-p4b)](SbF6) (TJNU-302)	-	FRET ESIPT	[100]