{"title":"Improved photocatalytic behavior of Ag-WO3/BiVO4 nanocomposite towards the removal of eosin yellow (EY) under visible light","authors":"Suresh Kumar Pandey , Prerna Sarwan , Dhanesh Tiwary , Mohammad Salman","doi":"10.1016/j.jwpe.2025.107216","DOIUrl":null,"url":null,"abstract":"<div><div>The photocatalytic removal of organic pollutants from wastewater is recognized as an economically viable and environmentally friendly technique. In this study, we successfully synthesized an Ag-WO<sub>3</sub>/BiVO<sub>4</sub> (ABvW) nanocomposite photocatalyst that demonstrates exceptional efficiency in the photocatalytic degradation of eosin yellow (EY) dye. The synthesized photocatalysts were comprehensively characterized using various techniques, including BT-XRD, FE-SEM, XPS, BET and UV-DRS, to confirm their structural and optical properties.</div><div>The photocatalytic degradation of EY was conducted under LED light illumination, and our findings reveal that the ABvW nanocomposite exhibits superior photocatalytic performance, achieving nearly 94 % dye removal within 70 min with a high Quantum yield (QY) value. This performance is significantly higher than that of pure WO<sub>3</sub>, BiVO<sub>4</sub>, or Ag/WO<sub>3</sub> samples individually. The enhanced photocatalytic activity of the ABvW nanocomposite is likely due to the effective suppression of charge recombination, increased specific surface area, and improved redox potential of the composite material, all of which contribute to the superior photocatalytic performance of the ABvW nanocomposite.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"71 ","pages":"Article 107216"},"PeriodicalIF":6.7000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425002880","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/13 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The photocatalytic removal of organic pollutants from wastewater is recognized as an economically viable and environmentally friendly technique. In this study, we successfully synthesized an Ag-WO3/BiVO4 (ABvW) nanocomposite photocatalyst that demonstrates exceptional efficiency in the photocatalytic degradation of eosin yellow (EY) dye. The synthesized photocatalysts were comprehensively characterized using various techniques, including BT-XRD, FE-SEM, XPS, BET and UV-DRS, to confirm their structural and optical properties.
The photocatalytic degradation of EY was conducted under LED light illumination, and our findings reveal that the ABvW nanocomposite exhibits superior photocatalytic performance, achieving nearly 94 % dye removal within 70 min with a high Quantum yield (QY) value. This performance is significantly higher than that of pure WO3, BiVO4, or Ag/WO3 samples individually. The enhanced photocatalytic activity of the ABvW nanocomposite is likely due to the effective suppression of charge recombination, increased specific surface area, and improved redox potential of the composite material, all of which contribute to the superior photocatalytic performance of the ABvW nanocomposite.
期刊介绍：
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies
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