Solar light sensitive hybrid Ce4+/3+ doped perovskite magnesium zirconate nano cubes for photocatalytic hydrogen evolution and organic pollutant degradation in water

Prashanth, K; Raghu, M.S.; Alharthi, Fahad A.; Sreenivasa, S.; Devi, V. Uma; Krishnaiah, Prakash; Rajamma, Devika Bhai; Akshatha, S.; Jeon, Byong‐Hun; Parashuram, L.

doi:10.1016/j.jece.2021.105364

Cited by 22 publications

(4 citation statements)

References 51 publications

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“…91 High-temperature hydrogen treatment is an important technique for the introduction of oxygen vacancies in metal oxides to achieve effective hydrogen precipitation and to reduce the recombination of photo-generated electrons and holes. 130 However, this process is very difficult to execute due to the experimental conditions (i.e., extremely high pressure and temperature). To solve this problem, a mild hydrogen treatment (2.4% H 2 in Ar, 300 1C, 10 min) was used for BiVO 4 (Fig.…”

Section: Hydrogen Treatmentmentioning

confidence: 99%

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Wang

Liu

et al. 2023

Chem. Commun.

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Section: Hydrogen Treatmentmentioning

confidence: 99%

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Wang

Liu

et al. 2023

Chem. Commun.

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“…Perovskite-type compounds, such as halide perovskites, have been studied as promising photocatalysts for some applications such as CO 2 reduction under UV–visible radiation [ 9 ] and PET–RAFT polymerization under visible and near-infrared radiation [ 10 ], due to their superior properties. Other types, such as perovskite oxides, have shown to be more suitable than their halide counterparts for application as catalysts in the photocatalytic degradation of aqueous solutions of several compounds, including organic dyes, due to their higher water stability [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. These ceramic materials, with the general formula ABO 3 , are well known for their stable and flexible structure that allows the accommodation of several cationic combinations and consequent variety of properties.…”

Section: Introductionmentioning

confidence: 99%

Visible-Light-Driven AO7 Photocatalytic Degradation and Toxicity Removal at Bi-Doped SrTiO3

2022

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In this study, Bi-doped SrTiO3 perovskites (Sr1−xBixTiO3, x = 0, 0.03, 0.05, 0.07 and 0.1) were synthesized using the solid-state method, characterized, and tested as photocatalysts in the degradation of the azo dye acid orange 7 (AO7) under visible light. The perovskites were successfully synthesized, and XRD data showed a predominant, well-crystallized phase, belonging to the cubic perovskite symmetry. For the doped samples, a minority phase, identified as bismuth titanate, was detected. All doped samples exhibited improved photocatalytic activity under visible light, on the degradation of AO7 (10 mg L−1), when compared with the undoped SrTiO3, with an increase in relative Abs484 nm decay from 3.7% to ≥67.8% after 1 h, for a powder suspension of 0.2 g L−1. The best photocatalytic activity was exhibited by the Sr0.95Bi0.05TiO3 perovskite. Reusability studies showed no significant loss in photocatalytic activity under visible light. The final solutions showed no toxicity towards D. magna, proving the efficiency of Sr0.95Bi0.05TiO3 as a visible-light-driven photocatalyst to degrade both the AO7 dye as well as its toxic by-products. A degradation mechanism is proposed.

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“…Among the various methods available for the removal of organic molecules like adsorption, membrane technology, and so forth, photocatalysis has a lot of advantages. − Photocatalytic degradation of insecticides involves the complete degradation of organic molecules into less/nonharmful products. MP is also evaluated for its degradation in the presence of light using various semiconductors. − …”

Section: Introductionmentioning

confidence: 99%

Fabrication of FeVO₄/RGO Nanocomposite: An Amperometric Probe for Sensitive Detection of Methyl Parathion in Green Beans and Solar Light-Induced Degradation

Alsulami

Kumarswamy

Prashanth³

et al. 2022

ACS Omega

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Pesticide usage is one of the significant issues in modern agricultural practices; hence, monitoring pesticide content and its degradation is of utmost importance. A novel and simple one-pot deep eutectic solvent-based solvothermal method has been developed for the synthesis of FeVO4/reduced graphene oxide (FeV/RGO) nanocomposite. The band gap of FeV decreased upon anchoring with RGO. Enhanced activity in the detection and photocatalytic degradation has been achieved in the FeV/RGO nanocomposite compared to pure FeV and RGO. FeV/RGO was used to modify glassy carbon electrode (GCE), and the fabricated electrode was evaluated for its electrochemical detection of methyl parathion (MP). The amperometric technique was found to be more sensitive with a 0.001–260 μM (two linear ranges; 0.001–20 and 25–260 μM) wide linear range and low limit of detection value (0.70 nM). The practical applicability of modified GCE is more selective and sensitive to real samples like river water and green beans. Photocatalytic degradation of MP has been examined using FeV, RGO, and FeV/RGO nanocomposite. FeV/RGO managed to degrade 95% of MP under solar light in 80 min. Degradation parameters were optimized carefully to attain maximum efficiency. Degradation intermediates were identified using liquid chromatography–mass spectrometry analysis. The degradation mechanism has been studied in detail. FeV/RGO could serve as a material of choice in the field of electrochemical sensors as well as heterogeneous catalysis toward environmental remediation.

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Solar light sensitive hybrid Ce4+/3+ doped perovskite magnesium zirconate nano cubes for photocatalytic hydrogen evolution and organic pollutant degradation in water

Cited by 22 publications

References 51 publications

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Visible-Light-Driven AO7 Photocatalytic Degradation and Toxicity Removal at Bi-Doped SrTiO3

Fabrication of FeVO₄/RGO Nanocomposite: An Amperometric Probe for Sensitive Detection of Methyl Parathion in Green Beans and Solar Light-Induced Degradation

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Solar light sensitive hybrid Ce4+/3+ doped perovskite magnesium zirconate nano cubes for photocatalytic hydrogen evolution and organic pollutant degradation in water

Cited by 22 publications

References 51 publications

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Imperfect makes perfect: defect engineering of photoelectrodes towards efficient photoelectrochemical water splitting

Visible-Light-Driven AO7 Photocatalytic Degradation and Toxicity Removal at Bi-Doped SrTiO3

Fabrication of FeVO4/RGO Nanocomposite: An Amperometric Probe for Sensitive Detection of Methyl Parathion in Green Beans and Solar Light-Induced Degradation

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Product

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Fabrication of FeVO₄/RGO Nanocomposite: An Amperometric Probe for Sensitive Detection of Methyl Parathion in Green Beans and Solar Light-Induced Degradation