Table 1 QD-sensitized photoelectrodes applied to PEC water decontamination

From: Role of quantum dots in photoelectrocatalytic technology

Photoelectrode

Preparation method

Achieved photocurrent density

Application

Reference

WO3/Ti3C2/In2S3

Hydrothermal

0.32 mA cm−2

Removal of bisphenol A and hexavalent chromium

107

B-Bi2Sn2O7-OV@Ni

Hydrothermal

18.9 µA cm−2

Sulfamethazine degradation

108

NCDs/TiO2 NA-VO

Simple immersion

0.56 mA cm−2

Tetracycline degradation

79

TiO2/g-C3N4/CQDs

Simple immersion

0.16 mA cm−2

1,4-dioxane degradation

110

CQDs/g-C3N4

Dip-coating

–

Methylene blue degradation

111

WO3/TiO2-CQDs

Dielectric barrier discharge

2.51 mA cm−2

Bisphenol A degradation

112

Bi2Sn2O7/TiO2

Hydrothermal

68.7 µA cm−2

Sulfamethazine degradation

55

PbS-Ti/TiO2

SILAR

1.25 mA cm−2

Decomposition of anticancer pharmaceutics

75

Bi2Te3/TiO2 Bi2Se3/TiO2

Spin-coating

0.86 mA cm−2 1.0 mA cm−2

Azo dye degradation

113

CdS/BiOI/WO3

SILAR

0.713 mA cm−2

Methylene blue degradation

76

  1. FTO fluorine-doped tin oxide, QDs quantum dots, OV and VO oxygen vacancies, NPs nanoparticles, NA nanoarrays, CQDs carbon quantum dots, SILAR successive ionic layer adsorption and reaction.
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