Recent progress on sonochemical production for the synthesis of efficient photocatalysts and the impact of reactor design

Adamou, Panayiota; Harkou, Eleana; Hafeez, Sanaa; Manos, George; Villa, Alberto; Al-Salem, S.M.; Constantinou, Achilleas; Dimitratos, Nikolaos

doi:10.1016/j.ultsonch.2023.106610

Cited by 9 publications

(2 citation statements)

References 128 publications

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“…The degradation of pollutants in sewage has garnered significant attention from researchers, prompting the exploration of various treatment methods, including flocculation precipitation [8], adsorption [9][10][11], and biological approaches [12]. While these methods have shown effectiveness, they are not without limitations.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress in Photocatalytic Degradation of Water Pollution by Bismuth Tungstate

Zhang,

Yu,

Zhai

et al. 2023

Molecules

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Photocatalysis has emerged as a highly promising, green, and efficient technology for degrading pollutants in wastewater. Among the various photocatalysts, Bismuth tungstate (Bi2WO6) has gained significant attention in the research community due to its potential in environmental remediation and photocatalytic energy conversion. However, the limited light absorption ability and rapid recombination of photogenerated carriers hinder the further improvement of Bi2WO6’s photocatalytic performance. This review aims to present recent advancements in the development of Bi2WO6-based photocatalysts. It delves into the photocatalytic mechanism of Bi2WO6 and summarizes the achieved photocatalytic characteristics by controlling its morphology, employing metal and non-metal doping, constructing semiconductor heterojunctions, and implementing defective engineering. Additionally, this review explores the practical applications of these modified Bi2WO6 photocatalysts in wastewater purification. Furthermore, this review addresses existing challenges and suggests prospects for the development of efficient Bi2WO6 photocatalysts. It is hoped that this comprehensive review will serve as a valuable reference and guide for researchers seeking to advance the field of Bi2WO6 photocatalysis.

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Section: Introductionmentioning

confidence: 99%

Recent Progress in Photocatalytic Degradation of Water Pollution by Bismuth Tungstate

Zhang,

Yu,

Zhai

et al. 2023

Molecules

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“…Central to this issue is the exploration of ultrasound-assisted synthesis of photocatalysts. Contributions from researchers like Constantinou, Dimitratos, and colleagues [1] emphasize the criticality of reactor setup in scaling up these processes. The issue also highlights the effectiveness of sonication in achieving controlled deposition during the synthesis of composite materials and heterojunctions.…”

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confidence: 99%

Special issue on “Ultrasound meets photocatalysis: recent trends in photocatalyst synthesis, hybrid processes, and piezo-enhanced strategies”

Meroni,

Falletta,

Bianchi

2024

Ultrasonics Sonochemistry

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Sonochemical Facile Synthesis of Bismuth Oxide Nanoparticles Using Citrus Lemon Extract and Its Catalytic Activity on Azo Dye Degradation

Dinesh,

Saranya

2024

Water Air Soil Pollut

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The synthesis of bismuth oxide nanoparticles through sono-cavitation using citrus lemon extract as a simple, eco-friendly and cost-efficient method was evaluated. The aqueous extract of citrus lemon acted as a bio-reducing and capping/stabilizing agent in the single-step biosynthesis of bismuth oxide nanoparticles. Different instrumental techniques have been used to characterize the biosynthesized bismuth oxide nanoparticles, including UV–vis spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray photoelectron spectroscopy and energy-dispersive X-ray spectroscopy (EDS). UV–vis spectroscopy revealed the formation of stable bismuth oxide nanoparticles at λmax of 400 nm with a surface plasmon resonance (SPR) band. TEM revealed that the biosynthesized bismuth oxide nanoparticles were rod shaped with a particle size of 26 nm. A potential mechanism for the formation of bismuth oxide nanoparticles with the influence of sono-cavitation has been suggested based on the observed findings. These catalytic capabilities of the bio-synthesized bismuth oxide nanoparticles were then evaluated by degradation of toxic azo dyes under different laboratory conditions. The azo dye Congo red (CR) was effectively degraded to 86% within 30 min under optimum experimental conditions using 0.12 g/mL catalyst. Thus, the phytochemical citrus lemon offers a cheap and eco-friendly solution for the synthesis of catalytic nanoparticles to degrade highly toxic organic compounds such as azo dyes. Graphical Abstract

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Recent progress on sonochemical production for the synthesis of efficient photocatalysts and the impact of reactor design

Cited by 9 publications

References 128 publications

Recent Progress in Photocatalytic Degradation of Water Pollution by Bismuth Tungstate

Recent Progress in Photocatalytic Degradation of Water Pollution by Bismuth Tungstate

Special issue on “Ultrasound meets photocatalysis: recent trends in photocatalyst synthesis, hybrid processes, and piezo-enhanced strategies”

Sonochemical Facile Synthesis of Bismuth Oxide Nanoparticles Using Citrus Lemon Extract and Its Catalytic Activity on Azo Dye Degradation

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