Promoting photocatalytic interaction of boron doped reduced graphene oxide supported BiFeO3 nanocomposite for visible-light-induced organic pollutant degradation

Preetha, Rajaraman; raj, Muniyandi Govinda; Vijayakumar, E.; Narendran, Moorthy Gnanasekar; Varathan, Elumalai; Neppolian, Bernaurdshaw; Jeyapaul, Ubagaram; Bosco, A. John

doi:10.1016/j.jallcom.2022.164038

Cited by 26 publications

(8 citation statements)

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“…The degradation of TC is modestly reduced as the pH value is raised to 10 because photogenerated holes are inclined to oxidize the OH group to create hydroxyl radicals, which have no effect on the deterioration of TC other than to directly destroy TC molecules in an alkaline solution. Statistics on the photodegradation of TC by composite photocatalysts are provided in Table for comparison with earlier findings. − …”

Section: Resultsmentioning

confidence: 89%

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

et al. 2023

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The efficient use of visible light is necessary to take advantage of photocatalytic processes in both indoor and outdoor circumstances. Precisely manipulating the in situ growth method of heterojunctions is an effective way to promote photogenerated charge separation. Herein, the SrFeO 3 @B-rGO catalyst was prepared by an in situ growth method. At a loading of 10 wt % B-rGO, the nanocomposites revealed an excellent morphology and thermal, optical, electrochemical, and mechanical properties. X-ray diffraction analysis revealed the cubic spinel structure and a space group of Pm ̅ 3m for SrFeO 3 . High-resolution scanning electron microscopy and high-resolution transmission electron microscopy show the core−shell formation between SrFeO 3 and B-rGO. Furthermore, density functional theory of SrFeO 3 was performed to find its band structure and density of states. The SrFeO 3 @B-rGO nanocomposite shows the degradation rate of tetracycline (TC) reaching 92% in 75 min and the highest rate constant of 0.0211 min −1 . To improve the catalytic removal rate of antibiotics, the efficiency of e − and h + separation must be improved, as well as the generation of additional radicals. Radical trapping tests and the electron paramagnetic resonance method indicated that the combination of Fe 2+ and Fe 3+ in SrFeO 3 effectively separated e − and h + while also promoting the development of the superoxide anion ( • O 2 − ) to accelerate TC degradation. The entire TC degradation pathway using high-performance liquid chromatography and its mechanism were discussed. As a whole, this study delineates that photocatalysis is a viable strategy for the treatment of environmental antibiotic wastewater.

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Section: Resultsmentioning

confidence: 89%

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

et al. 2023

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“…The shift of peaks towards higher angles is due to distortion in the lattice interface, as shown in Fig. 3 40 . Moreover, the GO-CuS composite shows a broad and less intense peak at 2θ = 11.71°, but the disappearance of GO peak (001) in BGO-CuS is linked with the removal of oxygen-containing functional groups from BGO-CuS during hydrothermal treatment 37 , 49 .…”

Section: Characterizationmentioning

confidence: 90%

“…Boron-doped graphene oxide (BGO) has widely been investigated for environmental applications and energy devices because the B-doping creates more active sites on GO edges 39 . Limited research has been reported on the photocatalytic degradation of pollutants using B-doped graphene oxide coupled semiconductor materials, as doping GO with non-metal atoms is a very selective process 40 , 41 . Hence, more insight into BGO-based nanocomposites is required to unlock their efficiency in degrading different pollutants.…”

Section: Introductionmentioning

confidence: 99%

Investigation of boron-doped graphene oxide anchored with copper sulphide flowers as visible light active photocatalyst for methylene blue degradation

Ahmad¹,

Zahid²,

Tahir³

et al. 2023

Sci Rep

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The non-biodegradable nature of waste emitted from the agriculture and industrial sector contaminates freshwater reserves. Fabrication of highly effective and low-cost heterogeneous photocatalysts is crucial for sustainable wastewater treatment. The present research study aims to construct a novel photocatalyst using a facile ultrasonication-assisted hydrothermal method. Metal sulphides and doped carbon support materials work well to fabricate hybrid sunlight active systems that efficiently harness green energy and are eco-friendly. Boron-doped graphene oxide-supported copper sulphide nanocomposite was synthesized hydrothermally and was assessed for sunlight-assisted photocatalytic degradation of methylene blue dye. BGO/CuS was characterized through various techniques such as SEM–EDS, XRD, XPS, FTIR, BET, PL, and UV–Vis DRS spectroscopy. The bandgap of BGO-CuS was found to be 2.51 eV as evaluated through the tauc plot method. The enhanced dye degradation was obtained at optimum conditions of pH = 8, catalyst concentration (20 mg/100 mL for BGO-CuS), oxidant dose (10 mM for BGO-CuS), and optimum time of irradiation was 60 min. The novel boron-doped nanocomposite effectively degraded methylene blue up to 95% under sunlight. Holes and hydroxyl radicals were the key reactive species. Response surface methodology was used to analyze the interaction among several interacting parameters to remove dye methylene blue effectively.

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“…[7] The use of the photocatalytic process to clean pollutants from wastewater has already been found to be beneficial . [8] However, the development and design of the photocatalyst are vital. [9] Perovskite materials have received a lot of attention as multifunctional materials because of their intriguing qualities, which include outstanding chemical stability and incredible electrical and optical capabilities.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pioneering Exploration of Mo₂AlB₂‐Transition‐Metal‐Aluminum‐Boron‐Phase‐Supported Hydrophobic SrTiO₃/Mo₂AlB₂ Nanocomposite for Improved Photocatalytic Carbendazim Degradation and CO₂ Reduction to Ethanol through the Schottky Junction

Narendran,

Peters,

John Bosco

et al. 2024

Solar RRL

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The global environmental and energy challenges necessitate the development of multifunctional materials that can address both pollutant removal and solar fuel production. In this groundbreaking study, we introduce the utilization of the Mo2AlB2 MAB phase as a co‐catalyst in the SrTiO3/Mo2AlB2 nanocomposite, marking the first instance of its application in photocatalytic approaches to combat environmental and energy crises. A nanocomposite of SrTiO3/Mo2AlB2 was prepared by ultrasound‐assisted self‐assembly of SrTiO3 nanocubes with crystal‐layered Mo2AlB2. The optimized catalyst denoted as STO@5‐MAB, was subjected to comprehensive characterization to evaluate its physiochemical properties. Remarkably, the STO@5‐MAB composite demonstrated exceptional performance in both photocatalytic carbendazim (CBZ) degradation, achieving an impressive degradation of 87.5% and CO2 reduction to ethanol with a rate of 9.96 mmol g‐1 h‐1 under visible light illumination. This outstanding performance can be attributed to the composite’s 1) hydrophobicity 2) enhanced light absorption, and 3) the formation of a Schottky junction at the interface, facilitating efficient charge separation. In conclusion, the SrTiO3/Mo2AlB2 nanocomposite demonstrates immense potential in addressing pressing environmental and energy challenges through photocatalytic carbendazim degradation and CO2 reduction to ethanol. This study underscores the pivotal role of Mo2AlB2 in developing efficient photocatalysts for environmental and energy applications.This article is protected by copyright. All rights reserved.

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Promoting photocatalytic interaction of boron doped reduced graphene oxide supported BiFeO3 nanocomposite for visible-light-induced organic pollutant degradation

Cited by 26 publications

References 50 publications

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

Investigation of boron-doped graphene oxide anchored with copper sulphide flowers as visible light active photocatalyst for methylene blue degradation

Pioneering Exploration of Mo₂AlB₂‐Transition‐Metal‐Aluminum‐Boron‐Phase‐Supported Hydrophobic SrTiO₃/Mo₂AlB₂ Nanocomposite for Improved Photocatalytic Carbendazim Degradation and CO₂ Reduction to Ethanol through the Schottky Junction

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Promoting photocatalytic interaction of boron doped reduced graphene oxide supported BiFeO3 nanocomposite for visible-light-induced organic pollutant degradation

Cited by 26 publications

References 50 publications

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

Investigation of boron-doped graphene oxide anchored with copper sulphide flowers as visible light active photocatalyst for methylene blue degradation

Pioneering Exploration of Mo2AlB2‐Transition‐Metal‐Aluminum‐Boron‐Phase‐Supported Hydrophobic SrTiO3/Mo2AlB2 Nanocomposite for Improved Photocatalytic Carbendazim Degradation and CO2 Reduction to Ethanol through the Schottky Junction

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Pioneering Exploration of Mo₂AlB₂‐Transition‐Metal‐Aluminum‐Boron‐Phase‐Supported Hydrophobic SrTiO₃/Mo₂AlB₂ Nanocomposite for Improved Photocatalytic Carbendazim Degradation and CO₂ Reduction to Ethanol through the Schottky Junction