Advanced oxidation processes: Performance, advantages, and scale-up of emerging technologies

Priyadarshini, Monali; Das, Indrasis; Ghangrekar, Makarand M.; Blaney, Lee

doi:10.1016/j.jenvman.2022.115295

Cited by 203 publications

(73 citation statements)

References 223 publications

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“…Photocatalysts with desired band gap energy can effectively harvest sunlight with a decrease of electron and hole (e – –h + ) pair recombination rate to enhance photocatalysis reactions. − High reactive species (HRS) such as hydroxyl ( • OH), hydroperoxyl ( • O 2 H – ), and superoxide ( • O 2 – ) radicals could be formed during photocatalysis for oxidation of organic wastewater. , A superoxide radical is an important intermediate for photocatalytic H 2 O 2 generation that may form HRS (such as • OH and • O 2 H – radicals) for oxidation of organic pollutants in wastewater …”

Section: Introductionmentioning

confidence: 99%

“…9−13 High reactive species (HRS) such as hydroxyl ( • OH), hydroperoxyl ( • O 2 H − ), and superoxide ( • O 2 − ) radicals could be formed during photocatalysis for oxidation of organic wastewater. 14,15 A superoxide radical is an important intermediate for photocatalytic H 2 O 2 generation that may form HRS (such as • OH and • O 2 H − radicals) for oxidation of organic pollutants in wastewater. 16 Many semiconductors including TiO 2 , ZnO, and SnO 2 have been investigated for photocatalytic H 2 O-to-H 2 O 2 oxidation.…”

Section: ■ Introductionmentioning

confidence: 99%

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Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation

Wei

Liu

Wang

2022

ACS Appl. Nano Mater.

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Photocatalytic H 2 O 2 generation using unlimited solar energy for in situ oxidation of organic pollutants in wastewater has been environmentally attractive. Photocatalytic H 2 O-to-H 2 O 2(aq) reaction by BiVO 4 , however, suffered from relatively low yields (e.g., 24 μM h −1 ) under visible-light irradiation, mainly due to its high recombination rate of charge carriers. Herein, nanostructured NiCo 2 O 4 /BiVO 4 Z-scheme heterojunctions were prepared to increase the oxygen reduction reaction for a higher H 2 O 2 yield rate (than BiVO 4 by 16 times approximately). Additionally, highly reactive superoxide ( • O 2 − ) and hydroxyl ( • OH) radicals from the photocatalytic H 2 O-to-H 2 O 2 process enhanced oxidation of a representative organic pollutant (i.e., methylene blue) under visiblelight irradiation. The photocatalytic oxidation rate constant was as high as 2 × 10 −7 M −1 s −1 . This visible-light photocatalytic H 2 O-to-H 2 O 2 synchronized oxidation of an organic pollutant by the nanostructured NiCo 2 O 4 /BiVO 4 heterojunctions demonstrates the possibility for a potential energy self-sufficient organic wastewater treatment process.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation

Wei

Liu

Wang

2022

ACS Appl. Nano Mater.

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“…AOPs are methods capable of processing high organic loads and causing less secondary pollution compared to traditional treatment methods [ 8 ]. These methods use the in-situ formation of highly reactive oxidizing species that are capable of promoting the mineralization of various organic pollutants, originating substances with low toxic potential [ 9 , 10 ]. The generation of these reactive species can be obtained through several processes, such as electrocatalysis, photocatalysis, and photoelectrocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

et al. 2022

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Indigo Blue (IB) is a dye widely used by the textile sector for dyeing cellulose cotton fibers and jeans, being considered a recalcitrant substance, and therefore resistant to traditional treatments. Several methodologies are reported in the literature for the removal or degradation of dyes from the aqueous medium, among which photoelectrocatalysis stands out, which presents promising results in the degradation of dyes when a dimensionally stable anode (DSA) is used as a photoanode. In the present work, we sought to investigate the efficiency of a Ti/RuO2-TiO2 DSA modified with tin and tantalum for the degradation of indigo blue dye by photoelectrocatalysis. For this, electrodes were prepared by the thermal decomposition method and then a physical–chemical and electrochemical analysis of the material was carried out. The composition Ti/RuO2-TiO2-SnO2Ta2O5 (30:40:10:20) was compared to Ti/RuO2-TiO2 (30:70) in the photocatalysis, electrocatalysis, and photoelectrocatalysis tests. The photocatalysis was able to degrade only 63% of the IB at a concentration of 100 mg L−1 in 3 h, whereas the electrocatalysis and photoelectrocatalysis were able to degrade 100% of the IB at the same initial concentration in 65 and 60 min, respectively.

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“…Despite their considerable performances, these methods have not been commercialized due to 1) their high cost of large-scale implementation in fruit packaging plants, 2) problems associated with the generation of intermediate metabolites of unknown toxicity, and 3) the fact that their efficiencies have been demonstrated at low TBZ concentrations that are below TBZ levels in wastewater. More information regarding the relative advantages and disadvantages of each technology are discussed in Priyadarshini et al (2022). This lack of available options has forced industries in the fruit and vegetable packing sector to discharge their effluent either in municipal treatment plants or at adjacent field sites (Papadopoulou et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Tunisian hypersaline sediments to set up suitable halotolerant microbial bioanodes for electrostimulated biodegradation of thiabendazole

et al. 2022

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This study investigated for the first time the performance of microbial halotolerant bioanodes designed from two Tunisian Hypersaline Sediments (THS) for simultaneous electrostimulated biodegradation of synthetic fruit packaging wastewater containing thiabendazole (TBZ), and recovery of an anodic current signal. Halotolerant bioanodes formation has been conducted on 6 cm2 carbon felt electrodes polarized at −0.1Vvs Saturated Calomel Electrode (SCE), inoculated with 80% (v:v) of synthetic wastewater containing 50 ppm of irradiated or not irradiated TBZ and 20% (v:v) of THS for a period of 7 days. Microbial bioanodes, and the corresponding anolytes, i.e., synthetic wastewater, were studied comparatively by electrochemical, microscopic, spectroscopic, molecular and microbial ecology tools. Despite the low maximum current densities recorded in the 50 ppm TBZ runs (3.66 mA/m2), more than 80% of the TBZ was degraded when non-irradiated TBZ (nTBZ) was used as the sole carbon energy by the microorganisms. Nevertheless, the degradation in the presence of irradiated TBZ (iTBZ) was greatly reduced by increasing the irradiation dose with maximum current density of 0.95 mA/m2 and a degradation rate less than 50% of iTBZ. In addition, chemical changes were observed in TBZ as a result of gamma irradiation and bioelectrochemical degradation. FT-IR and UV-Vis techniques confirmed the degradation of TBZ structural bonds producing novel functional groups. Culture-dependent approach and 16S ribosomal RNA sequencing demonstrated that bacterial community of halotolerant bioanodes formed with nTBZ were dominated by Proteobacteria (75%) and Firmicutes (25%). At species level, enrichment of Halomonas smyrnensis, Halomonas halophila, Halomonas salina, Halomonasor ganivorans and Halomonas koreensis on carbon felt electrodes were correlated with maximal current production and nTBZ degradation. As a result, THS halotolerant bacteria, and specifically those from Chott El Djerid (CJ) site certainly have well established application for the electrostimulated microbial biodegradation of fungicide in the real fruit and vegetable processing industries.

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Advanced oxidation processes: Performance, advantages, and scale-up of emerging technologies

Cited by 203 publications

References 223 publications

Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation

Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

Tunisian hypersaline sediments to set up suitable halotolerant microbial bioanodes for electrostimulated biodegradation of thiabendazole

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Advanced oxidation processes: Performance, advantages, and scale-up of emerging technologies

Cited by 203 publications

References 223 publications

Nanostructured NiCo2O4/BiVO4 Heterojunctions for Visible-Light Photocatalytic H2O-to-H2O2 Synchronized Organic Pollutant Oxidation

Nanostructured NiCo2O4/BiVO4 Heterojunctions for Visible-Light Photocatalytic H2O-to-H2O2 Synchronized Organic Pollutant Oxidation

Evaluation of Photoelectrocatalysis with Electrode Based on Ti/RuO2-TiO2 Modified with Tin and Tantalum Oxides for the Degradation of Indigo Blue Dye

Tunisian hypersaline sediments to set up suitable halotolerant microbial bioanodes for electrostimulated biodegradation of thiabendazole

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Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation

Nanostructured NiCo₂O₄/BiVO₄ Heterojunctions for Visible-Light Photocatalytic H₂O-to-H₂O₂ Synchronized Organic Pollutant Oxidation