{"title":"Innovations in metal oxides-biochar nanoparticles for dye removal","authors":"","doi":"10.1016/j.nanoso.2024.101269","DOIUrl":null,"url":null,"abstract":"<div><p>Metal oxide-biochar nanoparticles have emerged as promising materials for the removal of dyes from aqueous solutions due to their unique properties and environmental compatibility. In this mini-review, we provide a comprehensive overview of recent advancements in the applications of metal oxide-biochar nanoparticles for dye removal. We begin by discussing the synthesis methods employed for the fabrication of metal oxide-biochar nanoparticles, including hydrothermal synthesis, co-precipitation, and sol-gel methods. The synergistic effects of combining metal oxides with biochar are explored, highlighting the enhanced adsorption capacities and photocatalytic activities of the resulting nanocomposites. Furthermore, we delve into the mechanisms underlying the adsorption and photocatalytic degradation of dyes by metal oxide-biochar nanoparticles. The role of surface functional groups, pore structures, and electron transfer processes in dye adsorption and degradation processes is elucidated. Additionally, we review recent studies investigating the application of metal oxide-biochar nanoparticles in real-world scenarios, including wastewater treatment and environmental remediation. Case studies demonstrating the efficacy of these nanomaterials in removing various dye pollutants from aqueous solutions are presented, emphasizing their potential for large-scale implementation. Finally, we discuss future perspectives and challenges in the field, including the need for standardized synthesis protocols, comprehensive characterization techniques, and further exploration of the environmental implications of metal oxide-biochar nanoparticles. Overall, this mini-review provides valuable insights into the recent advancements and potential applications of metal oxide-biochar nanoparticles for dye removal, highlighting their importance in addressing water pollution challenges.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":null,"pages":null},"PeriodicalIF":5.4500,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano-Structures & Nano-Objects","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2352507X2400180X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"Physics and Astronomy","Score":null,"Total":0}
引用次数: 0
Abstract
Metal oxide-biochar nanoparticles have emerged as promising materials for the removal of dyes from aqueous solutions due to their unique properties and environmental compatibility. In this mini-review, we provide a comprehensive overview of recent advancements in the applications of metal oxide-biochar nanoparticles for dye removal. We begin by discussing the synthesis methods employed for the fabrication of metal oxide-biochar nanoparticles, including hydrothermal synthesis, co-precipitation, and sol-gel methods. The synergistic effects of combining metal oxides with biochar are explored, highlighting the enhanced adsorption capacities and photocatalytic activities of the resulting nanocomposites. Furthermore, we delve into the mechanisms underlying the adsorption and photocatalytic degradation of dyes by metal oxide-biochar nanoparticles. The role of surface functional groups, pore structures, and electron transfer processes in dye adsorption and degradation processes is elucidated. Additionally, we review recent studies investigating the application of metal oxide-biochar nanoparticles in real-world scenarios, including wastewater treatment and environmental remediation. Case studies demonstrating the efficacy of these nanomaterials in removing various dye pollutants from aqueous solutions are presented, emphasizing their potential for large-scale implementation. Finally, we discuss future perspectives and challenges in the field, including the need for standardized synthesis protocols, comprehensive characterization techniques, and further exploration of the environmental implications of metal oxide-biochar nanoparticles. Overall, this mini-review provides valuable insights into the recent advancements and potential applications of metal oxide-biochar nanoparticles for dye removal, highlighting their importance in addressing water pollution challenges.
期刊介绍:
Nano-Structures & Nano-Objects is a new journal devoted to all aspects of the synthesis and the properties of this new flourishing domain. The journal is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. The journal is focused on the objects rather than on their applications. However, the research for new applications of original nano-structures & nano-objects in various fields such as nano-electronics, energy conversion, catalysis, drug delivery and nano-medicine is also welcome. The scope of Nano-Structures & Nano-Objects involves: -Metal and alloy nanoparticles with complex nanostructures such as shape control, core-shell and dumbells -Oxide nanoparticles and nanostructures, with complex oxide/metal, oxide/surface and oxide /organic interfaces -Inorganic semi-conducting nanoparticles (quantum dots) with an emphasis on new phases, structures, shapes and complexity -Nanostructures involving molecular inorganic species such as nanoparticles of coordination compounds, molecular magnets, spin transition nanoparticles etc. or organic nano-objects, in particular for molecular electronics -Nanostructured materials such as nano-MOFs and nano-zeolites -Hetero-junctions between molecules and nano-objects, between different nano-objects & nanostructures or between nano-objects & nanostructures and surfaces -Methods of characterization specific of the nano size or adapted for the nano size such as X-ray and neutron scattering, light scattering, NMR, Raman, Plasmonics, near field microscopies, various TEM and SEM techniques, magnetic studies, etc .