Simultaneous removal of organic pollutants and heavy metals in wastewater by photoelectrocatalysis: A review

Ye, Shangshi; Chen, Yingxu; Yao, Xiaoling; Zhang, Jingdong

doi:10.1016/j.chemosphere.2020.128503

Cited by 114 publications

(33 citation statements)

References 107 publications

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“…84 Compared with photocatalytic oxidation, the bias potential can promote the oxidation of organic pollutants on the photoanode remarkably by suppressing the recombination of photogenerated electron–hole pairs and extending the lifetime of photogenerated holes. 85 In addition, the decomplexation and deposition of heavy metal were carried out simultaneously by photoelectrocatalysis. 86…”

Section: Pretreatment Methods Of Impurities In Electroplating Wastewatermentioning

confidence: 99%

Resource utilization of electroplating wastewater: obstacles and solutions

Dai

et al. 2022

Environ. Sci.: Water Res. Technol.

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Section: Pretreatment Methods Of Impurities In Electroplating Wastewatermentioning

confidence: 99%

Resource utilization of electroplating wastewater: obstacles and solutions

Dai

et al. 2022

Environ. Sci.: Water Res. Technol.

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“…The release of organic contaminants from industries into wastewater contributes to water pollution. 1 Some of these organic contaminants include organic dyes such as methylene blue (MB), methyl orange (MO), and Rhodamine B, to mention a few. These organic dyes are used as coloring agents from various industries such as textile, paper printing, cosmetics, and pharmaceuticals and thus are mostly common in industrial waste water.…”

Section: Introductionmentioning

confidence: 99%

Thin Films (FTO/BaTiO₃/AgNPs) for Enhanced Piezo-Photocatalytic Degradation of Methylene Blue and Ciprofloxacin in Wastewater

Masekela

Hintsho‐Mbita

Ntsendwana³

et al. 2022

ACS Omega

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In this study, we investigate the ability of barium titanate/silver nanoparticles (BaTiO 3 /AgNPs) composites deposited on a fluorine-doped tin oxide (FTO) glass using tape-casting method to produce piezoelectric thin film (FTO/BaTiO 3 /AgNPs) for piezocatalytic, photocatalytic, and piezo-photocatalytic degradation of methylene blue (MB) and ciprofloxacin (CIP) in wastewater. The prepared piezoelectric materials (BaTiO 3 and BaTiO 3 /AgNPs) were characterized using XRD, SEM, TEM, EDS, UV-DRS, TGA, PL, BET, EIS, and chronoamperometry. The UV-DRS showed the surface plasmon resonance (SPR) of Ag nanoparticles on the surface of BaTiO 3 at a wavelength of 505 nm. The TEM images revealed the average Ag nanoparticle size deposited on the surface of BaTiO 3 to be in the range of 10–15 nm. The chronoamperometry showed that the photoreduction of silver nanoparticles (AgNPs) onto BaTiO 3 (BTO) resulted in a piezo-electrochemical current enhancement from 0.24 to 0.38 mA. The composites (FTO/BaTiO 3 /AgNPs) achieved a higher degradation of MB and CIP when the photocatalysis and piezocatalysis processes were merged. Under both ultrasonic vibration and UV light exposure, FTO/BTO/AgNPs degraded about 72 and 98% of CIP and MB from wastewater, respectively. These piezoelectric thin films were shown to be efficient and reusable even after five cycles, suggesting that they are highly stable. Furthermore, the reactive oxygen species studies demonstrated that hydroxyl radicals (·OH) were the most effective species during degradation of MB, with minor superoxide radicals (·O 2 – ) and holes (h + ). From this study, we were able to show that these materials can be used as multifunctional materials as they were able to degrade both the dye and pharmaceutical pollutants. Moreover, they were more efficient through the piezo-photocatalytic process.

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“…Indeed, PEC avoids electron and hole recombination events (that strongly limit the photocatalysis efficiency) by applying an external bias on a photoanode such as a TiO 2 -based substrate. When the photoanode is irradiated, the applied bias promotes the transfer of the photogenerated electrons from the anode to the cathode through an external circuit [7].…”

Section: Introductionmentioning

confidence: 99%

Nanomaterials in Photo (Electro) Catalysis

Petronella

Comparelli

2021

Catalysts

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Simultaneous removal of organic pollutants and heavy metals in wastewater by photoelectrocatalysis: A review

Cited by 114 publications

References 107 publications

Resource utilization of electroplating wastewater: obstacles and solutions

Resource utilization of electroplating wastewater: obstacles and solutions

Thin Films (FTO/BaTiO₃/AgNPs) for Enhanced Piezo-Photocatalytic Degradation of Methylene Blue and Ciprofloxacin in Wastewater

Nanomaterials in Photo (Electro) Catalysis

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Simultaneous removal of organic pollutants and heavy metals in wastewater by photoelectrocatalysis: A review

Cited by 114 publications

References 107 publications

Resource utilization of electroplating wastewater: obstacles and solutions

Resource utilization of electroplating wastewater: obstacles and solutions

Thin Films (FTO/BaTiO3/AgNPs) for Enhanced Piezo-Photocatalytic Degradation of Methylene Blue and Ciprofloxacin in Wastewater

Nanomaterials in Photo (Electro) Catalysis

Contact Info

Product

Resources

About

Thin Films (FTO/BaTiO₃/AgNPs) for Enhanced Piezo-Photocatalytic Degradation of Methylene Blue and Ciprofloxacin in Wastewater