Photo-electrochemical degradation of wastewaters containing organics catalysed by phosphate-based materials: a review

Amaterz, Elhassan; Tara, A.; Bouddouch, A.; Taoufyq, A.; Bakiz, B.; Benlhachemi, A.; Jbara, O.

doi:10.1007/s11157-020-09547-9

Cited by 38 publications

(10 citation statements)

References 239 publications

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“…Converting solar energy into electricity and fuel has been regarded as one of the most promising pathways toward clean and sustainable energy 2 . A variety of solar energy conversion devices have been devised for various functions, such as photovoltaic cells that generate electricity and photoelectrochemical cells or photocatalysts that produce hydrogen fuel and added‐value chemical products or degrade organic pollutant 3–8 . Research during the past few decades has led to the ascending performance of solar energy devices step by step.…”

Section: Introductionmentioning

confidence: 99%

Application of ultrathin TiO₂ layers in solar energy conversion devices

Zhou

Stacchiola

et al. 2022

Energy Science & Engineering

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A vital pursuit in solar energy research is to achieve high efficiency and long‐term stability in energy conversion devices. Coating or sandwiching an ultrathin layer of TiO2 onto active solar components has been demonstrated to be a remarkably effective and facile strategy to improve their stability. The TiO2 film acts as a protection layer and enhances solar energy conversion efficiency by passivating surface recombination sites or facilitating electron transport. To date, numerous efforts have been devoted to applying ultrathin TiO2 layers in various kinds of solar energy conversion devices. In this study, we review deposition techniques, characterization methods of the resulting ultrathin TiO2 layer, as well as its applications in dye‐sensitized solar cells, organic–inorganic hybrid solar cells, and photoelectrochemical cells.

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Section: Introductionmentioning

confidence: 99%

Application of ultrathin TiO₂ layers in solar energy conversion devices

Zhou

Stacchiola

et al. 2022

Energy Science & Engineering

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“…Photocatalysis provides a powerful oxidation via the generation of highly oxidizing species, e.g., radicals OH• [6][7][8][9]. These latter are non-selective and can lead to a good removal of all types of non-biodegradable organic contaminants including dyes, pesticides and pharmaceuticals [10][11][12][13][14][15]. Unlike conventional techniques, such as the adsorption method on activated carbon or biological treatments, photocatalysis has been considered as a cost-effective method to completely convert organics into CO 2 and H 2 O without the production of large quantities of sludge [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Phase Transformation, Photocatalytic and Photoluminescent Properties of BiPO4 Catalysts Prepared by Solid-State Reaction: Degradation of Rhodamine B

et al. 2021

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Polycrystalline bismuth phosphate BiPO4 was synthesized by solid-state reaction at different temperatures varying from 500 to 900 °C. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDS) and Raman spectroscopy. The low-temperature phase of BiPO4 has monoclinic structure with a space group P21/n, and was transformed into the monoclinic phase P21/m with a slight distortion of monoclinic lattice when it was heated above 500 °C. The effect of the transformation on the structure, morphology and photocatalytic properties was examined. The photocatalytic activity of each sample, in presence of Rhodamine B (RhB) in aqueous solution, was carried out and analyzed under UV light irradiation. Photoexperiments showed that the material prepared at 500 °C is the best catalyst with degradation efficiency of the order of 96% after 12 min of reaction time under UV light irradiation. This high photocatalytic efficiency could be due to their structural and morphological changes. The photocatalytic degradation mechanism of RhB in the presence of the best photocatalyst BiP-500 °C is proposed. The stability of the catalyst was also examined by carrying out four successive tests of the degradation in the presence of BiP-500 °C. Total organic carbon (TOC) was used to further estimate the rate of mineralization in the presence of BiP-500 °C (83% TOC removal). Photoluminescence experiments performed under UV-laser light irradiation revealed emissions in the green-orange range, with optimal intensities for the mix systems observed at 550 °C.

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“…Electronic structure calculations of BiPO 4 (P2 1 /n) were executed by the QUANTUM ESPRESSO program [29], with exchange and correlation treated by generalized gradient approximation (GGA) with the Perdew-Burke-Ernzerhof (PBE) function [30], using a normconserving pseudo potential for the Bi atom and ultra-soft pseudo potentials for P and O atoms. The atomic configurations of the Bi, P and O atoms are Bi, [Xe]4f 14 5d 10 6s 2 6p 3 ; P, [Ne]3s 2 3p 3 ; and O, [He]2s 2 2p 4 . All calculations were performed with kinetic energy cutoffs of 80 and 720 Ry for wave functions and charge density, respectively, and with a 4 × 4 × 4 as Monkhorst−Pack k-point [31].…”

Section: Calculation Methodsmentioning

confidence: 99%

“…In recent works [1][2][3][4][5][6][7][8][9], innovative approaches allowing the photodegradation of organic pollutants in aqueous medium using new photocatalysts were described. Indeed, various advanced oxidation techniques for the degradation of gaseous or aqueous pollutants already exist.…”

Section: Introductionmentioning

confidence: 99%

Photodegradation under UV Light Irradiation of Various Types and Systems of Organic Pollutants in the Presence of a Performant BiPO4 Photocatalyst

et al. 2022

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In this study, we prepared spheroid microstructures of monoclinic bismuth phosphate BiPO4 by a facile solid-state reaction at 500 °C. The crystal structure was refined using the Rietveld method, where the crystal cell was resolved using a monoclinic system (parameters a, b, c, β) with space group P21/n. SEM images showed that the solid catalyst presented homogeneous morphologies. These BiPO4 microparticles (BiP-500) have been used as photocatalysts to photodegrade, under UV light irradiation, three cationic dyes (Rhodamine B, RhB; Methylene Blue, MB; and Toluidine Blue, TB), three anionic dyes (Congo Red, CR; Orange G, OG; and Methyl Orange, MO) and mixtures of RhB-MB, RhB-OG and MO-OG organic dyes. The photodegradation efficiency of these BiP-500 microparticles is found to be optimal in the case of RhB solutions, RhB-MB and RhB-OG binary mixtures. The BiP-500 catalyst shows a high selectivity for the conversion of the mixture of dyes into CO2 and H2O. Total organic carbon analysis of an anionic dye and a cationic dye (RhB, OG and RhB-MB) confirms the mineralization of the pollutants in the presence of BiP-500 particles. The photocatalytic efficiency of our BiP-500 photocatalyst has been confirmed, with a view to facilitate applications in the field of the depollution of wastewater in the agricultural environment by the degradation of parathion-methyl (PM) as a pollutant.

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Photo-electrochemical degradation of wastewaters containing organics catalysed by phosphate-based materials: a review

Cited by 38 publications

References 239 publications

Application of ultrathin TiO₂ layers in solar energy conversion devices

Application of ultrathin TiO₂ layers in solar energy conversion devices

Phase Transformation, Photocatalytic and Photoluminescent Properties of BiPO4 Catalysts Prepared by Solid-State Reaction: Degradation of Rhodamine B

Photodegradation under UV Light Irradiation of Various Types and Systems of Organic Pollutants in the Presence of a Performant BiPO4 Photocatalyst

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Photo-electrochemical degradation of wastewaters containing organics catalysed by phosphate-based materials: a review

Cited by 38 publications

References 239 publications

Application of ultrathin TiO2 layers in solar energy conversion devices

Application of ultrathin TiO2 layers in solar energy conversion devices

Phase Transformation, Photocatalytic and Photoluminescent Properties of BiPO4 Catalysts Prepared by Solid-State Reaction: Degradation of Rhodamine B

Photodegradation under UV Light Irradiation of Various Types and Systems of Organic Pollutants in the Presence of a Performant BiPO4 Photocatalyst

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Application of ultrathin TiO₂ layers in solar energy conversion devices

Application of ultrathin TiO₂ layers in solar energy conversion devices