MXene-based PEC sensors for environmental pollutant detection^a.

Working electrode	Analyte	LOD	Linear concentration range	Ref.
Ti3C2 MXene/SnS2	Cr(vi)	0.51 pM	1.0 pM∼0.1 mM	199
Ti3C2 MXene/BiVO4	Hg2+	1 pM	1 pM∼2 nM	200
CdS/Ti3C2 MXene	Cu2+	0.05 nM	0.1 nM∼10 μM	201
BiOBixI1−x/Ti3C2 MXene	Hg2+	42.1 pM	0.1 nM∼1000 nM	202
BiOI/Ti3C2 MXene	l-cysteine	0.005 nM	0.01 nM∼10 μM	203
TiO2(001)/Ti3C2 MXene	Dopamine	0.52 μM	1.0 μM∼1000 μM	204
BiVO4/Ti3C2 MXene	Oxytetracycline	0.03 nM	0.1 nM∼100 nM	205
g-C3N4/Ti3C2 MXene	Ciprofloxacin	0.13 nM	0.4 nM∼1000 nM	196
Ti3C2 MXene/Bi4VO8Br/TiO2	Ciprofloxacin	0.3 nM	1 nM∼1500 nM	206
AgBr/Ti3C2 MXene	Chlorpyrifos	0.33 pg L−1	0.001 pg L−1∼1 ng L−1	207
Bi4VO8Br/Ti3C2 MXene	Streptomycin	0.3 nM	1 nM∼1000 nM	208
Au@PtAg/TiO2-Ti3C2 MXene	Ochratoxin A	1.73 fg mL−1	5 fg mL−1∼10 ng mL−1	209
Anode: TiO2/S-Ti3C2 MXene	Microcystin-RR	0.034 fM	0.1 fM∼1 nM	210
Cathode: MoS2/S-Ti3C2 MXene	Aflatoxin B1	0.73 pg mL−1	0.01 pg mL−1∼1 μg mL−1	211
MoS2-Ti3C2Tx MXene
AgI/Ti3C2 MXene/GO	Sulfide	1.54 nM	5 nM∼200 μM	198

^aTiO₂₍₀₀₁₎: active surface (001 facet) TiO₂; AgI/Ti₃C₂ MXene/GO: AgI/3D porous Ti₃C₂ MXene/graphene aerogel.