📰 Synthesis, Characterization, and Photocatalytic Activity of Sb2O3 Nanoparticles: A Step towards Environmental Sustainability ✍ Sabeeha Jabeen, Ekhlakh Veg, Shashi Bala and Tahmeena Khan Various nano-photocatalysts have been used to decompose organic dyes. Sb2O3 nanoparticles (NPs) have emerged as potential photocatalysts due to their redox potential, non-toxicity, long-term stability, and low cost. This work describes the fabrication of Sb2O3 NPs via the solvothermal process. A field emission scanning electron microscopic (FE-SEM) analysis depicted the spherical shape of the NPs, and an energy-dispersive X-ray (EDAX) analysis confirmed the presence of oxygen (O) and antimony (Sb) in the synthesized NPs. XRD (X-ray diffraction) patterns were recorded to measure the size and phase of the NPs. The sample was found with an alpha phase of antimony oxide indicating high purity. The Scherrer equation was used to calculate the size of the NPs, which was found to be approximately 20.89 nm. The photocatalytic potential was tested against methylene blue (MB) dye. The NPs showed a 60% degradation of the dye in 60 min. The dye was found to be adsorbed on the Sb2O3 nanoball surface and degradation was associated with the generation of reactive oxygen species (ROS). 🔗 Read the paper at https://lnkd.in/g4MQEWrU. #methylene #photocatalysis #Sb2O3 #solvothermalsynthesis
Proceedings MDPI’s Post
More Relevant Posts
-
Study reveals reversible assembly of Platinum catalyst
Combo of methods explains how a nanoparticle catalyst assembles from single atoms during use and then disassembles for reuse. Read more: https://lnkd.in/g2gFPw5T #PlatinumCatalyst #Combo #nanoparticle #catalyst #StatNano #NBIC #nanotechnology
Study Reveals Reversible Assembly of Platinum Catalyst | STATNANO
statnano.com
To view or add a comment, sign in
-
Combo of methods explains how a nanoparticle catalyst assembles from single atoms during use and then disassembles for reuse. Read more: https://lnkd.in/g2gFPw5T #PlatinumCatalyst #Combo #nanoparticle #catalyst #StatNano #NBIC #nanotechnology
Study Reveals Reversible Assembly of Platinum Catalyst | STATNANO
statnano.com
To view or add a comment, sign in
-
Led by Dr Rob Lehane and Dr Alonso Gamero-Quijano (ChemSci UL, Bernal Institute, University of Limerick), with our collaborator Prof. José A. Manzanares from the University of Valencia, a preprint of our work "Mechanistic Insights into the Potentiodynamic Electrosynthesis of PEDOT Thin Films at a Polarisable Liquid|Liquid Interface" is now available on ChemRxiv: https://lnkd.in/eTqZG7zc Conducting polymer thin films find widespread use, for example in bioelectronic, energy harvesting and storage, and drug delivery technology. #Electrosynthesis of conducting #polymers at a polarisable liquid|liquid interface using an aqueous oxidant and organic soluble monomer provides a route to free-standing and scalable CP thin films, such as #PEDOT, in a single step at ambient conditions. Here, using the potentiodynamic technique of cyclic #voltammetry to prepare PEDOT thin films, interfacial electrosynthesis is shown to be mechanistically distinct from conducting polymer #electropolymerisation at a solid electrode|electrolyte interface. By combining (spectro)electrochemical measurements and theoretical models, this work identifies the underlying mechanistic origin of each feature on the cyclic voltammograms (CVs) due to charge accumulated from Faradaic and capacitive processes as the PEDOT thin film grows. Interfacial electrosynthesis of PEDOT is shown to involve ion-exchange, electron transfer, and proton adsorption charge transfer processes. The Galvani potential difference controls the interfacial concentration of the oxidant and oligomers, but not the PEDOT redox state. Nevertheless, typical electrochemical behaviours seen for PEDOT electropolymerisation on a solid electrode surface, such as steady charge accumulation with each successive cycle and the appearance of a nucleation loop, were observed during interfacial electrosynthesis. The experimental methodology and theoretical models outlined in this article provide a broadly generic framework to understand evolving CVs during interfacial electrosynthesis using any suitable oxidant/monomer combination.
Mechanistic Insights into the Potentiodynamic Electrosynthesis of PEDOT Thin Films at a Polarisable Liquid|Liquid Interface
chemrxiv.org
To view or add a comment, sign in
-
📖 Science to Read by Technical Electrocatalysis Laboratory 🔎 How does the structure of complex but highly active catalyst materials for oxygen reduction reaction (ORR) alter under very corrosive PEM #fuelcell conditions? 🔎 What are the dominant degradation mechanisms of the Pt-based nanoparticles depending on their structure? Together with colleagues from Germany, Switzerland, Denmark and France, we address these critical questions and provide new insights into the degradation processes of Pt-based ORR catalysts probed by the combination of in situ WAXS and SAXS techniques. Research Article – Open Access 👉 Monitoring the Morphological Changes of Skeleton-PtCo Electrocatalyst during PEMFC Start-Up/Shut-Down probed by in situ WAXS and SAXS https://lnkd.in/eKaGCFCq #ChemSusChem Chemistry Europe 🤝 Collaboration partners across Europe Marek Janssen, Philipp Weber, Mehtap Oezaslan from Technical Electrocatalysis Laboratory, Technische Universität Braunschweig Daesung Park from Physikalisch-Technische Bundesanstalt, PTB, Laboratory of Emerging Nanometrology (LENA), Technische Universität Braunschweig Matthias Arenz from Universität Bern Jonathan Quinson from Aarhus University Rebecca Pittkowski from Københavns Universitet - University of Copenhagen Jakub Drnec, Isaac Martens from ESRF - The European Synchrotron
Monitoring the Morphological Changes of Skeleton‐PtCo Electrocatalyst during PEMFC Start‐Up/Shut‐Downprobed by in situ WAXS and SAXS
chemistry-europe.onlinelibrary.wiley.com
To view or add a comment, sign in
-
🔬🌿 Exciting News! 🌿🔬 I am happy to share with you our newly published research article titled "Production and Characterization of Nanocellulose from Maguey (Agave cantala) Fiber" under the Polymer Journal, MDPI. Our work contributes to the Special Issue on Advanced Preparation and Application of Cellulose. 🔎 Dive into the details here: https://lnkd.in/gi4Wkm3c 👏 Kudos to the dedicated research team for their outstanding contribution to advancing knowledge in the field of nanocellulose production! #Maguey #Nanocellulose #PolymerJournal #MDPI
Production and Characterization of Nanocellulose from Maguey (Agave cantala) Fiber
mdpi.com
To view or add a comment, sign in
-
I'm happy to share with you our latest publication from research carried out at the AGH University of Krakow. We've successfully synthesized entropy-stabilized perovskite nanofibers (Y₀.₂La₀.₂Nd₀.₂Gd₀.₂Sm₀.₂)CoO₃ using a novel glycothermal method at temperatures as low as 250°C. This not only bypasses the high-energy sintering process required to fabricate high-entropy ceramics, but also enables nanostructuring of perovskite-type oxide. Having this dual capability has allowed us to achieve CO conversion rate of 97% at 100°C, making our material a promising challenger for industrial applications towards sustainable development. #CatalysisResearch #GreenChemistry #Nanomaterials #HighEntropyOxides
Synthesis and Catalytic Performance of High-Entropy Rare-Earth Perovskite Nanofibers: (Y0.2La0.2Nd0.2Gd0.2Sm0.2)CoO3 in Low-Temperature Carbon Monoxide Oxidation
mdpi.com
To view or add a comment, sign in
-
We cordially invite you to read our new article🖋️📖 Rapid industrial growth is associated with an increase in the production of environmentally harmful waste. A potential solution to significantly reduce pollution is to replace current synthetic materials with readily biodegradable plastics. Moreover, to meet the demands of technological advancements, it is essential to develop materials with unprecedented properties to enhance their functionality. Polysaccharide composites demonstrate significant potential in this regard. Polysaccharides possess exceptional film-forming abilities and are safe for human use, biodegradable, widely available, and easily modifiable. Unfortunately, polysaccharide-based films fall short of meeting all expectations. To address this issue, the current study focused on incorporating carbon quantum dots (CQDs), which are approximately 10 nm in size, into the structure of a starch/chitosan biocomposite at varying concentrations. This modification has improved the mechanical properties of the resulting nanocomposites. The inclusion of nanoparticles led to a slight reduction in solubility and an increase in the swelling degree. The optical characteristics of the obtained films were influenced by the presence of CQDs, and the fluorescence intensity of the nanocomposites changed due to the specific heavy metal ions and amino acids used. Consequently, these nanocomposites show great potential for detecting these compounds. Cellular viability assessments and comet assays confirm that the resulting nanocomposites do not exhibit any cytotoxic properties based on this specific analytic method. The tested nanocomposites with the addition of carbon quantum dots (NC/CD II and NC/CD III) were characterised by greater genotoxicity compared to the negative control. The positive control, the starch/chitosan composite alone, was also characterised by a greater induction of chromatin damage in mouse cells compared to a pure mouse blood sample.Keywords: carbon dots; nanocomposites; cytotoxicity; starch; chitosan; biocomposite filmshttps://lnkd.in/dnhdy3WW #nanocomposites #carbondots #cytotoxicity Magdalena Krystyjan Marcel KrzanMaterials MDPI
Preparation, Physicochemical, and Cyto- and Genotoxic Characterisation of Polysaccharide Composites Containing Carbon Quantum Dots
mdpi.com
To view or add a comment, sign in
-
You can take a look to this new paper with #GIXD experiment on #SIRIUSBeamline at Synchrotron SOLEIL about a new technique to form semi-conductive polymer (PolyAlkylThiophene - P3AT) ultra-thin films that consist in pre-forming the layer at the air-water interface and then transfer it on solid substrate. Such materials are useful to build organic electronics, photovoltaic cells or bio-compatible sensors. Using #GIXD and #XRayReflectivity (#XRR at #P08 DESY), we demonstrate the homogeneity and the organization of such films. It is a part of a collaboration between #SIRIUSBeamline and #LPPI at CY Cergy Paris Université around the PhD of Hugo Fernandez. "Tuning the order of poly(3-alkylthiophene) derivatives ultrathin films through side-chain po- larity : From a short-range ordered monolayer to a highly crystalline bilayer" H. Fernandez, Alae El Haitami, Arnaud Hemmerle, Chen Shen, Philipp Jordt, R. P. Giri, Philippe Fontaine, Sophie CANTIN-RIVIERE Polymer, 294 (2024) 126719. DOI : 10.1002/adma.202307547 https://lnkd.in/e5rRVbby
Tuning the order of poly(3-alkylthiophene) derivatives ultrathin films through side-chain polarity: From a short-range ordered monolayer to a highly crystalline bilayer
sciencedirect.com
To view or add a comment, sign in
-
#RES_Focus Title:Thin-film nanocomposite (TFN) membrane technologies for the removal of emerging contaminants from wastewater Authors:Bo Han, Jean-Christophe P. GABRIEL Abstract: Thin film nanocomposite (TFN) membranes, consisting of nanoparticles and polyamide barriers are an efficient separation tool for removal emerging wastes from water. In the last decade, conventional and advanced approaches for TFN membrane preparation have been developed. In addition, nanomaterials with low fouling tendency, high chemical resistance and versatile pore/channel structures are applied in the field of TFN membrane fabrication. Here, the state-of-the-art developments of TFN membranes for water treatment are comprehensively reviewed. Recent advances in the design/fabrication/modification of nanomaterials as well as the functionalization/optimization of TFN membranes are discussed in detail. The capital and operational expenditures (CAPEX and OPEX) analysis, the technological readiness level (TRL) and the patent-related status of the TFN membranes are then overviewed. It is found that most of the reported TFN membranes have been validated in a laboratory setting (TRL 4) and are gradually being validated/demonstrated in relevant environment (TRL 5/6). But, as far as we can see, translation of these researches to industry is yet to come since we found no report of associated patent licensing or startup creation. Therefore, the challenges and limitations of TFN membranes at the current stage are discussed, possible solutions are presented, and suggestions for future research on TFN membranes for water treatment are outlined. Source:Journal of Cleaner Production DOI:https://lnkd.in/eSFvrAFm #TFN #TFNmembrane #MixedMatrixMembrane #Criteriaanalysis #Nanocomposite #modification #CAPEX #OPEX #Performanceanalysis #Removalofwastes
Thin-film nanocomposite (TFN) membrane technologies for the removal of emerging contaminants from wastewater
sciencedirect.com
To view or add a comment, sign in
-
Delving into MicroED Alongside ReadCrystal Technology MicroED (Microcrystal Electron Diffraction) technology is similar in principle to X-ray diffraction, but with the distinction of employing high-energy electron beams, resulting in stronger interactions with the crystals. Consequently, only a small amount of microcrystal is needed to rapidly and efficiently obtain high-resolution diffraction data, significantly reducing the requirements on sample shape, purity, and size. MicroED technology can address the structural resolution challenges of nanoscale crystals. For proteins and protein-ligand complexes that are difficult to grow into large single crystals, the use of MicroED technology can save time spent on multiple attempts at crystal optimization, providing a rapid pathway to obtaining results. Why Choose MicroED Technology? 👉 Nanoscale Crystals Atomic details can be extracted from Crystals as small as 100 nm, even in a heterogeneous mixture, and mixtures of different polymorphs and compounds 👉 Minimal Sample Needed Required sample as low as 1 mg 👉 Versatile Applications Suitable for biological macromolecular crystals (proteins/RNA), drug discovery, chemistry and materials (MOF/COF/organic molecules/inorganic minerals, etc.) Why Choose ReadCrystal Technology? 👉 International Top Lab Professional expert team, advanced electron microscope equipment and self-developed software 👉 Excellent Results 30+ top papers, 50+ in submission 👉 Lightning Delivery Completed within one week, providing high quality crystal structure ReadCrystal Technology specializes in 3D-ED/MicroED technology. For more information, visit the following link: https://lnkd.in/gwwywfG2 #MicroED #3DED #MOF #Nanocrystal #StructureDetermination #StructureAnalysis #COF
To view or add a comment, sign in
218 followers