Table 3. An Overview of the Literature-Reported Nanomaterial-Based Approaches for Fluorometric Detection of Fe(III).

fluorophore	linearity range (ppm)	LOD (ppb)	ref
SUMOF-7II	0.92–9.3	927	(41)
MIL-53(Al)	0.168–11.2	50.3	(42)
boron-doped carbon dots	0.0–0.893	13.51	(43)
carbon polymer dots	0.011–0.558	5.58	(44)
nitrogen-doped and amino acid functionalized graphene quantum dots	0.027–27.92	5.58	(45)
nitrogen-doped graphene quantum dots	0.27–27.92	10,000	(46)
Gd(III)–5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin	0.027–5.58	5.47	(47)
3-fsa-MSNT sensor	0.0–0.56	17.2	this work
5-fsa-MSNT sensor	0.0–1.52	9.4