Table 2.

Adsorbent performance for NRFX adsorption from aqueous media.

Adsorbent	${\mathit{Q}}_{\mathit{max}}$ (mg/g)	pH	Temp. (ºC)	SSA (m2/g)	Average pore volume (cm3/g)	Method of ${\mathit{q}}_{\mathit{max}}$ determination	Refs.
Graphene oxide/MOF based composite	1114.8	–	–	49.95	–	Langmuir	[83]
Magnesium oxide/Chitosan/Graphene oxide	1000.0	7.0	–	294.0	–	Langmuir	[92]
N-doped activated carbon from shaddock peel	798.40	–	45	2481	–	Langmuir	[102]
Trapa natans husk based AC	638.60	7.5	–	1274	1.087	Langmuir	[107]
Chitosan-hydroxyapatite nano-adsorbent	625.00	7.0	45	–	–	Langmuir	[6]
Pine needle based Fe/Cu oxides composite	609.86		40	27.80	0.093	Langmuir	[108]
Magnetic halloysite nanotubes/molecularly imprinted polymer composite	512.82	–	25	–	–	Langmuir	[109]
Lotus stalk-based activated carbon	456.18	5.5	–	1289	–	Langmuir	[110]
Fe-Cu oxide nanocomposite from Loquat leaf extract	453.70	–	40	13.38	0.055	Langmuir	[103]
Loofah based activated carbon	450.45	7.0	25	736.8	–	Experiments	[89]
Pre-treated barley straw	441.00	6.96	50	–	–	Experiments	[90]
Chromium based sulphonated MOF	408.20	7.0	30	1760	–	Langmuir	[99]
Pre-treated barley straw	396.00	7.0	25	1314	–	Experiments	[111]
Graphene oxide	374.90	7.0	31	67.00	–	Sips	[17]
Chromium based metal-organic framework (MOF)	360.00	–	30	–	–	Experiments	[99]
Raw barley straw	349.00	6.96	25	–	–	Experiments	[90]
Polydopamine microspheres	346.00	6.6	45	–	–	Langmuir	[80]
Iron-trimesic metal-organic framework	344.80	7.0	25	563.6	–	Experiments	[112]
Cattail fibres based activated carbon	310.70	–	–	907.0	1.00	Langmuir	[113]
Magnetic biochar derived from furfural residue	299.60	4.0	–	463.0	0.524	Langmuir	[114]
Amine-functionalized magnetic bamboo-based AC	293.20	–	–	923.2	0.51	Langmuir	[33]
Luffa sponge biochar	286.00	–	15	822.3	–	Langmuir	[3]
Animal hairs based activated carbon	285.40	–	–	514.0	0.243	Langmuir	[113]
Layered chalcogenide	271.10	4.0	40	–	–	Langmuir	[115]
Raw montmorillonite	255.44	5.0	25	–	–	Langmuir	[116]
Zr-based metal organic framework composite	253.16	–	–	–	–	Langmuir	[117]
3D peanut shell/graphene oxide	228.83	6.2	–	64.24	0.108	Experiments	[118]
Amino-functionalized Zr-based MOF	222.50	–	45	713.2	–	Langmuir	[9]
Surface-imprinted polymer microsphere	220.30	–	25	–	–	Langmuir	[119]
Salix mongolica based magnetic biochar	215.80	–	35	1348	0.59	Langmuir	[120]
Hypercross linked resin MN-202	196.10	7.0	45	1155	–	Langmuir	[121]
Alkali-modified fly ash	189.40	7.0	25	31.27	0.0773	Langmuir	[122]
Macroporous resin XAD-4	178.60	7.0	15	880.0	–	Langmuir	[121]
Magnetic bamboo-based AC	173.30	–	–	861.6	0.45	Langmuir	[33]
Montmorillonite	169.22	7.0	25	65.50	–	Langmuir	[2]
Aminated polystyrene resin MN-150	161.30	7.0	45	815.3	–	Langmuir	[121]
Albizia lebbeck seed pods based activated carbon	153.99	–	50	1824	–	Langmuir	[123]
Iron-based mesoporous material (Fe-MCM-41)	134.26	–	–	894.1	–	Langmuir	[101]
Acid-modified fly ash	129.70	7.0	25	18.37	0.0403	Langmuir	[122]
Urea N-doped cocoa shell biochar	120.30	–	25	8.450	0.016	Langmuir	[98]
Granular AC	112.86	7.0	25	1200	1.31	Langmuir	[124]
Nitrogen rich-modified Calotropis gigantean fiber	105.80	8.0	–	–	–	Langmuir	[125]
Sulphuric acid activated termite feces	104.40	–	55	81.30	–	Sips	[5]
Diammonium hydrogen orthophosphate activated Pomelo peel based AC	101.35	–	30	83.79	0.08	Langmuir	[126]
Mg/Fe layered bimetallic hydroxides	97.070	7.0	25	–	–	Experiments	[127]
Thermally treated montmorillonite	95.790	7.0	25	1.200	–	Langmuir	[2]
Chromium based aminated MOF	92.500	–	30	–	–	Experiments	[99]
Carboxylated multi-walled carbon nanotubes	89.300	7.0	45	160.0	–	Langmuir	[121]
Copper loaded SBA-15 type mesoporous silica	87.850	–	35	–	–	Langmuir	[128]
Acid activated, thermally treated montmorillonite	86.211	7.0	25	131.6	–	Langmuir	[2]
Magnetic pomelo peel-based biochar	85.080		45	20.73	0.110	Langmuir	[104]
Spent coffee ground biochar	69.800	7.0	–	46.32	–	Langmuir	[129]
Magnetic porous carbon from Fe3+-modified MOF-5	63.918	7.0	25	104.0	0.24	Dubinin-Astakhov	[91]
Molecularly imprinted polymer	62.500	–	–	7.950	0.34	Langmuir	[81]
MCM-41type mesoporous silica	61.400	7.0	–	–	–	Experiments	[130]
Fly ash	54.690	7.0	25	6.120	0.0233	Langmuir	[122]
2D copper-porphyrin metal-organic framework	50.000	5.0	–	342.7	0.256	Experiments	[131]
Iron loaded SBA-15 type mesoporous silica	46.720	–	15	–	–	Langmuir	[128]
Pomelo peel-based biochar	45.270		45	1.706	0.003	Langmuir	[104]
Molecularly non-imprinted polymer	44.600	–	–	5.850	0.29	Langmuir	[81]
Magnetic molecularly imprinted polymer composite	42.340	–	35	–	–	Experiments	[132]
Sawdust biochar/Al2(SO4)3-modified thermal kaolin	42.287	–	–	44.00	0.233	Langmuir	[1]
Iron/Zinc/H3PO4 – modified sludge biochar	39.300	–	–	39.10	0.129	Langmuir	[133]
Phosphoric acid activated Pomelo peel based AC	38.340	–	30	626.9	0.35	Langmuir	[126]
Coffee husk waste	33.560	–	–	1.217	–	Langmuir	[16]
Iron-doped activated alumina	32.580	6.5	–	140.6	–	Langmuir	[110]
Montmorillonite/wheat straw biochar composite	25.530	7.0	25	112.6	0.604	Langmuir	[100]
Reduced graphene oxide/ magnetite composite	23.260	6.2	25	–	–	Langmuir	[134]
Rice husk waste	20.120	–	–	0.902	–	Langmuir	[16]
Magnetic molecularly imprinted polymer	14.260	–	25	88.90	0.15	Langmuir	[85]
Iron ore waste	14.160	–	35	24.60	–	Langmuir	[15]
Nickel-Aluminium layered double hydroxide	12.990	7.0	25	60.83	0.099	Langmuir	[34]
Urea N-doped biochar	11.480	5.0	25	225.9	0.24	Experiments	[135]
Wheat straw biochar	10.580	7.0	25	20.10	0.138	Langmuir	[100]
Magnesium-aluminum layered double hydroxides	9.0660	–	–	37.30	–	Experiments	[136]
Pomelo peel-based biochar	7.4300	4.5	20	–	–	Experiments	[137]
Corn stalks based activated magnetic biochar	7.2469	–	–	760.7	0.3698	Langmuir	[78]
Magnetic potato stems and leaves biochar-based manganese oxide composite	6.9400	3.0	35	252.0	0.16	Langmuir	[138]
Willow branches activated magnetic biochar	6.2587	–	–	856.8	0.4007	Langmuir	[78]
Pyrite-reed straw biochar composite	5.9425	7.0	35	54.53	0.0532	Langmuir	[139]
Potato stems and leaves biochar	5.8200	3.0	53	99.43	0.078	Langmuir	[138]
Natural attapulgite – potato stem hybrid biochar	5.2400	6.1	35	90.40	0.1225	Langmuir	[10]
Hematite-reed straw biochar composite	4.4699	7.0	35	134.9	0.0857	Langmuir	[139]
Reed stalks based activated magnetic biochar	3.5139	–	–	777.5	0.3294	Langmuir	[78]
Montmorillonite	2.5530	6.5	25	148.3	0.202	Experiments	[100]
Molecularly imprinted silica polymer	2.2280	–	25	344.0	–	Experiments	[140]
Carbonized Moringa oleifera pod husks	2.0330	–	25	235.8	–	Langmuir	[141]
Mesoporous silica MCM-41	1.7400	7.0	25	918.4	0.752	Langmuir	[142]
Chemically treated Moringa oleifera pod husks	1.5170	–	25	182.4	–	Langmuir	[141]
Polystyrene microplastics	0.9240	–	35	–	−	Langmuir	[7]
Polybutylene succinate	0.8340	–	35	–	–	Langmuir	[7]
Polyethylene microplastics	0.5140	–	35	–	–	Langmuir	[7]