COFs	Covalent organic frameworks
PCs	Phenolic compounds
SSF	Stainless steel fiber
GS-SSF	Gully-like surface of stainless steel fiber
SPME	Solid-phase microextraction
DMF	N,N-dimethylformamide
TTA	4,4′,4″-(1,3,5-triazine-2,4,6-triyl) triphenylamine
TFPA	Tris(4-formylphenyl) amine
APTES	3-aminopropyltriethoxysilane
3-MP	M-cresol
2,6-DMP	2,6-dimethylphenol
2-NP	O-nitrophenol
2,4-DMP	2,4-dimethylphenol
2,4-DCP	2,4-dichlorophenol
GC	Gas chromatography
FID	Flame ionization detector
FT-IR	Fourier transform infrared
TGA	Thermogravimetric analysis
SEM	Scanning electron microscope
XRD	X-ray diffraction
LODs	Limits of detection
RSDs	Relative standard deviations
EFs	Enrichment factors