Showing 241 - 260 results of 1,014 for search '"ultraviolet–visible spectroscopy"', query time: 0.78s Refine Results
  1. 241

    Lantana camara flowers as a natural dye source for cotton fabrics by Dibyendu Bikash Datta, Debasish Das, Biswajit Sarkar, Anindya Majumdar

    Published 2023-04-01
    “…The extracted natural dye was analyzed using Ultraviolet-Visible Spectroscopy, Fourier-Transform Infrared Spectroscopy, and Inductively Coupled Plasma Mass Spectrometry. …”
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    Article
  2. 242

    N-Co-Cd-doped TiO2 nanocomposite for efficient dye-synthesized solar cells by Youssef Essam, Ghada H. El-Nowihy

    Published 2023-06-01
    “…X-ray diffraction is used to determine the phases of the prepared nanocomposite. Ultraviolet–visible spectroscopy and differential reflectance spectroscopy are used to disclose the absorption region and to calculate the energy gap (Eg) for the nanocomposite. …”
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    Article
  3. 243

    Antibacterial Activity of Copper Nanoparticles Fabricate via Malva Sylvesteris Leaf Extract by Osama Ismail Haji Zebari, Samie Yaseen Sharaf Zeebaree, Aemn Yaseen Sharaf Zeebaree, Hardan Ismail Haji Zebari, Hadeel Ridha Abbas

    Published 2019-08-01
    “…Characterization of copper nanoparticles was diagnosed by Ultraviolet–visible spectroscopy that confirms the band characteristic for copper nanoparticles in the range of 200–700 nm and the role of Malva Selvesteris leaf extract biomolecules was confirmed by Fourier transform infrared spectroscopy. …”
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    Article
  4. 244

    Synthesis, characterization, and antimicrobial properties of copper nanoparticles by Usman MS, El Zowalaty ME, Shameli K, Zainuddin N, Salama M, Ibrahim NA

    Published 2013-11-01
    “…The purity of the nanoparticles was authenticated using different characterization techniques, including ultraviolet visible spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and field emission scanning electron microscopy. …”
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    Article
  5. 245

    Organic Contaminants and Interactions with Micro- and Nano-Plastics in the Aqueous Environment: Review of Analytical Methods by Julia Reichel, Johanna Graßmann, Oliver Knoop, Jörg E. Drewes, Thomas Letzel

    Published 2021-02-01
    “…Specific gas chromatography (GC), liquid chromatography (LC) and ultraviolet-visible spectroscopy (UV-VIS) methods are considered. …”
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    Article
  6. 246

    Photochemical Reduction of Silver Nanoparticles on Diatoms by Adrián León-Valencia, Sarah Briceño, Carlos Reinoso, Karla Vizuete, Alexis Debut, Manuel Caetano, Gema González

    Published 2023-03-01
    “…The as-synthesized nanocomposites were characterized by ultraviolet-visible spectroscopy (UV-Vis), Fourier transforms infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), fluorescence microscopy, and Raman spectroscopy. …”
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    Article
  7. 247

    Charge transport behavior in gamma‐ray irradiated poly(ethylene terephthalate) estimated by surface potential decay by Yu Gao, Nan Li, Jing Li, Boxue Du, Ziyang Liu

    Published 2021-06-01
    “…Furthermore, Fourier transform infrared spectrum, gel content, ultraviolet‐visible spectroscopy, X‐ray photoelectron spectroscopy, differential scanning calorimetry and polarized optical microscope were employed to characterize the change in material structure induced by the irradiation. …”
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    Article
  8. 248

    Recovery Study of Gold Nanoparticle Markers from Lateral Flow Immunoassays by Tilen Švarc, Peter Majerič, Darja Feizpour, Žiga Jelen, Matej Zadravec, Timi Gomboc, Rebeka Rudolf

    Published 2023-08-01
    “…Various characterisation methods including scanning electron microscopy, transmission electron microscopy, ultraviolet-visible spectroscopy and optical emission spectrometry with inductively coupled plasma were used during this study. …”
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    Article
  9. 249

    Gold and silver nanoparticles from Trianthema decandra: synthesis, characterization, and antimicrobial properties by Geethalakshmi R, Sarada DV

    Published 2012-10-01
    “…The kinetics of reduction of gold and silver ions during the reaction was analyzed by ultraviolet-visible spectroscopy. Field emission-scanning electron microscopy showed formation of gold nanoparticles in various shapes, including spherical, cubical, triangular, and hexagonal, while silver nanoparticles were spherical. …”
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  10. 250

    In vitro evaluation of the effect of botanical formulations used in the control of Aedes aegypti L. (Diptera: Culicidae) on liver enzymes. by Karla Rejane de Andrade Porto, Priscilla Rezende Motti, Alexandre Alves Machado, Antonia Railda Roel

    “…METHODS: Inhibition profiles were assessed using in vitro assays for cholinesterase and malate dehydrogenase activity and quantitated by ultraviolet-visible spectroscopy at 410nm to 340nm. RESULTS Insecticide products formulated from cashew nutshell liquid [A] and ricinoleic acid [B] showed cholinesterase activity levels of 6.26IU/mL and 6.61IU/mL, respectively, while the control level for cholinesterase was 5-12IU/mL. …”
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  11. 251

    Spray Pyrolysed Nanostructured Gold-Doped Tin Oxide (Auto) Thin Films by S.I. Akinsola, K.S. Adedayo, A.B. Alabi, D.B. Olanrewaju, A.A. Ajayi, O.A. Babalola

    Published 2021-10-01
    “…UV-VIS (ultraviolet visible) spectroscopy and four-point probe analysis are done for optical and electrical analysis. …”
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  12. 252

    Catalytic degradation of methylene blue using a newly engineered composite and its electrochemical performance by Ayesha Kiran, Muhammad Ramzan, Muhammad Faheem, Shabbir Hussain, Muhammad Imran

    Published 2020-09-01
    “…The engineered composite was characterized by different analytical techniques like scanning electron microscopy (SEM), energy dispersive X-ray (EDX), ultraviolet–visible spectroscopy (UV–Vis) and Fourier transform infrared spectroscopy (FT-IR). …”
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    Article
  13. 253

    A Simple Model to Estimate the Number of Metal Engineered Nanoparticles in Samples Using Inductively Coupled Plasma Optical Emission Spectrometry by Nokwanda Hendricks, Olatunde Olatunji, Bhekumuzi Gumbi

    Published 2022-09-01
    “…Citrate-capped AuNPs were synthesized and characterized using transmission electron microscopy (TEM) and ultraviolet–visible spectroscopy (UV-vis). A mimic of environmental matrices was achieved by spiking sediments with AuNPs, extracted with leachate, and separated from the bulk matrix using centrifuge and phase transfer separation techniques. …”
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    Article
  14. 254

    PVK-grafted multiwalled carbon nanotube materials with enhanced mobility for electronic devices by K. Priyadharshini, Dhananjaya Panda, Koteswara Rao Peta, S. Rathinavel

    Published 2023-02-01
    “…X-ray powder diffraction (XRD), ultraviolet-visible spectroscopy, Thermogravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR) were used to validate the generation of composites from synthesized CNTs and composites. …”
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    Article
  15. 255

    Construction of Alizarin Conjugated Graphene Oxide Composites for Inhibition of <i>Candida albicans</i> Biofilms by Mohankandhasamy Ramasamy, Sitansu Sekhar Nanda, Jin-Hyung Lee, Jintae Lee

    Published 2020-04-01
    “…In this study, one-step adsorption strategy was utilized to conjugate alizarin (AZ) on graphene oxide (GO) and characterized by ultraviolet-visible spectroscopy (UV-Vis), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR), X-ray powder diffraction (XRD), dynamic light-scattering (DLS), and transmission electron microscopy (TEM). …”
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  16. 256

    Green synthesis of ZnO, CuO and NiO nanoparticles using Neem leaf extract and comparing their photocatalytic activity under solar irradiation by Lema Yadeta Gemachu, Asnake Lealem Birhanu

    Published 2024-12-01
    “…The biosynthesized nanoparticles were characterized by X-ray diffraction (X-RD), Fourier transform infrared spectroscopy (FT-IR), energy dispersive x-ray (EDX), scanning electron microscopy (SEM), and ultraviolet–visible spectroscopy (UV-Vis). The X-RD showed that the synthesized ZnO, CuO, and NiO NPs were of high purity, mostly hexagonal, monoclinic, and cubic in shape, with an average crystalline size in the range 25.26–10.50 nm. …”
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  17. 257

    Sodium lignosulfonate as sacrificial agent and effectiveness in reducing CTAB cationic adsorption onto kaolinite by Aik Shye Chong, Muhammad A. Manan, Ahmad Kamal Idris

    Published 2021-12-01
    “…The adsorption was done by depletion method using Ultraviolet–visible spectroscopy (UV–Vis). Effectiveness as sacrificial agent in mixture and pre-treatment were studied. …”
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  18. 258

    Investigation of the Mechanical Properties and Microstructure of Graphene Nanoplatelet-Cement Composite by Baomin Wang, Ruishuang Jiang, Zhenlin Wu

    Published 2016-11-01
    “…The optimum concentration ratio of GNPs to MC was confirmed as 1:7 by ultraviolet visible spectroscopy (UV-Vis), and the optical microscope and transmission electron microscopy (TEM) images displayed remarkable dispersing performance. …”
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    Article
  19. 259

    Synthesis and characterization of new functionalized polymer-Fe3O4 nanocomposite particles by A. Bukowska, W. Bukowski, K. Hus, J. Depciuch, M. Parlinska-Wojtan

    Published 2017-01-01
    “…The obtained nanocomposite particles were characterized by FTIR (Fourier transform infrared spectroscopy), DR UV-Vis (diffuse reflectance ultraviolet – visible spectroscopy), TEM (transmission electron microscopy) combined with EDS (energy dispersive X-ray spectroscopy) analysis and DLS (dynamic light scattering). …”
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  20. 260

    Enhancement the electrical conductivity of the synthesized polyvinylidene fluoride/polyvinyl chloride composite doped with palladium nanoparticles via laser ablation by A.M. Ismail, Mohamed H. El-Newehy, Mehrez E. El-Naggar, A. Meera Moydeen, A.A. Menazea

    Published 2020-09-01
    “…The structural and optical characterization have been investigated by means of ultraviolet–visible spectroscopy (UV–vis), Fourier transform infrared–attenuated total reflection analysis (FTIR-ATR) and X-ray diffraction (XRD). …”
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    Article