Showing 161 - 180 results of 1,014 for search '"ultraviolet–visible spectroscopy"', query time: 0.15s Refine Results
  1. 161

    Copper nanoparticles mediated by chitosan: synthesis and characterization via chemical methods by Usman, Muhammad Sani, Ibrahim, Nor Azowa, Shameli, Kamyar, Zainuddin, Norhazlin, Wan Yunus, Wan Md. Zin

    Published 2012
    “…The characterization of the prepared NPs was done using ultraviolet-visible spectroscopy, which showed a 593 nm copper band. …”
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    Article
  2. 162

    Effect Of Annealing Temperature On Cerium Oxide Thin Films Grown By DC Sputtering Method by Ainita Rozati Mohd, Zabidi, Hassan, Zainuriah, Lim, Way Foong

    Published 2020
    “…The energy bandgap was calculated from the ultraviolet-visible spectroscopy (UV-Vis) measurement. GIXRD result shows (111) plane has the highest peak intensity, therefore (111) plane was selected as the preferred orientation for CeO2 thin films. …”
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    Conference or Workshop Item
  3. 163

    Impact of TiO2 nanotubes’ morphology on the photocatalytic degradation of simazine pollutant by Suhaimy, Syazwan Hanani Meriam, Lai, Chin Wei, Tajuddin, Hairul Anuar, Samsudin, Emy Marlina, Johan, Mohd Rafie

    Published 2018
    “…The characterizations were conducted by FE-SEM (fiend emission scanning electron microscopy), XRD (X-ray diffraction), RAMAN (Raman spectroscopy), EDX (Energy dispersive X-ray spectroscopy), UV-Vis (Ultraviolet visible spectroscopy) and LCMS/MS/MS (liquid chromatography mass spectroscopy). …”
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    Article
  4. 164

    Improved resistivity and surface morphology of laser treated Cr/Pd metal contact sputter deposited on Si by Ahmad, Rabiatul Adawiah, Ali, Ahmad Hadi, Isiyaku, Aliyu Kabiru, Bhari, Bibi Zulaika

    Published 2017
    “…The metal contacts were characterized based on electrical, optical and morphology properties by using four-point probes, ultraviolet-visible spectroscopy (UV-Vis) and atomic force microscope (AFM). …”
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    Article
  5. 165

    Design and tailoring of a novel heterogeneous catalyst for epoxidation of 1-octene by Ng, Yun Hau

    Published 2005
    “…These samples were characterized by 13C and 29Si magic angle spinning nuclear magnetic resonance spectroscopy (MAS NMR), x-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-VIS), hydrophobicity measurement, Brunner, Emmet and Teller (BET) surface area analysis and energy dispersive x-ray analysis (EDAX). …”
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    Thesis
  6. 166

    Synthesis and characterization of room temperature sol–gel-assisted transparent tin-doped magnesium oxide nanoparticles’ protective coating by Islam, S., Bidin, N., Saeed, M. A., Riaz, S., Bakar, M. A. A., Naseem, S., Abbas, K. N., Sanagi, M. M.

    Published 2017
    “…Furthermore, the refractive index 1.30 and average film thickness 221 nm at wavelength 632.8 nm has been estimated with optical transparency up to 94 % in the visible range by ultraviolet–visible spectroscopy. Band gap energy of 3.12 eV has also been estimated. …”
    Article
  7. 167

    Experimental investigation on the influence of temperature on the adsorption of henna extract on kaolinite in reducing surfactant adsorption by Mohd. Musa, Mohd. Syazwan, Wan Sulaiman, Wan Rosli, Abdul Majid, Zaiton, Abdul Majid, Zulkifli, Idris, Ahmad Kamal, Rajaei, Kourosh

    Published 2019
    “…The adsorption of henna extract on kaolinite was done using Ultraviolet-visible spectroscopy (UV-Vis). The influence of temperature on the henna extract adsorption on kaolinite was studied. …”
    Article
  8. 168

    Synthesis and characterization of gold-silver nanoparticles in deionized water by pulsed laser ablation (PLAL) technique at different laser parameter by Norsyuhada, W., Mohd. Shukri, W., Bakhtiar, Hazri, Islam, Shumaila, Bidin, Noriah

    Published 2019
    “…The gold and silver colloidal solutions are separately prepared by 1064nm of pulsed laser ablation of metallic target (gold and silver) which is immersed in deionized water. Ultraviolet-visible spectroscopy (UV-Vis) analysis shows the absorption band of gold and silver NPs at ∼520nm and ∼400nm, respectively. …”
    Article
  9. 169

    Reduction of Fe(ii) and Zn(ii) using fresh eichhornia crassipes by Mohd Saifulnizam, Awang Jaafar

    Published 2010
    “…The absorbance of each parameter was analyzing using Ultraviolet-visible Spectroscopy. This research was run at various contact times such as 1 day, 2 day, 3 day, 4 day and 5 day. …”
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    Undergraduates Project Papers
  10. 170

    One-step electrochemical synthesis of MoS2/graphene composite for supercapacitor application by Ali, Gomaa A. M., Thalji, Mohammad R., Wee, Chen Soh, Algarni, H., K. F., Chong

    Published 2019
    “…The as-prepared samples are characterized by X-ray diffraction, field emission scanning electron microscopy, Fourier transform infrared spectroscopy and ultraviolet-visible spectroscopy techniques to confirm the formation of the MoS2/graphene composite. …”
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    Article
  11. 171

    Nanostructured carbon black for simultaneous electrochemical determination of trace lead and cadmium by differential pulse stripping voltammetry by Ruigang Xie, Lingli Zhou, Cuiling Lan, Fangfang Fan, Ruifeng Xie, Hongyu Tan, Tiansheng Xie, Lingmin Zhao

    Published 2018-01-01
    “…The morphology and surface properties of conductive CB were characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, ultraviolet–visible spectroscopy and Raman spectroscopy. Special pore structures, as well as surface chemical functional groups, endow CB with excellent catalytic and adsorption properties. …”
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    Article
  12. 172

    Paper Ageing: The Effect of Paper Chemical Composition on Hydrolysis and Oxidation by Edyta Małachowska, Dominika Pawcenis, Jacek Dańczak, Joanna Paczkowska, Kamila Przybysz

    Published 2021-03-01
    “…This study presents an overview of the analytical techniques employed in the evaluation of the hydrolysis and oxidation processes; these techniques include size-exclusion chromatography, Fourier-transform infrared and ultraviolet–visible spectroscopy, and X-ray diffraction. This paper aims to determine the extent to which these instrumental methods are useful for studying the aforementioned processes and for which lignin contents. …”
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    Article
  13. 173

    Temperature- and pH-sensitive nanohydrogels of poly(N-Isopropylacrylamide) for food packaging applications: modelling the swelling-collapse behaviour. by Clara Fuciños, Pablo Fuciños, Martín Míguez, Issa Katime, Lorenzo M Pastrana, María L Rúa

    Published 2014-01-01
    “…The swelling-collapse transition was analyzed by the change in the optical properties of PNIPA nanohydrogels using ultraviolet-visible spectroscopy. The thermodynamic parameters associated with the nanohydrogels collapse were calculated using a mathematical approach based on the van't Hoff analysis, assuming a two-state equilibrium (swollen to collapsed). …”
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    Article
  14. 174

    Antioxidant Properties of Green Coffee Extract by Anna Masek, Malgorzata Latos-Brozio, Joanna Kałużna-Czaplińska, Angelina Rosiak, Ewa Chrzescijanska

    Published 2020-05-01
    “…The scope of research included gas chromatography-mass spectrometry (GC-MS), Fourier transform infrared spectroscopy (FTIR) and Ultraviolet-Visible spectroscopy (UV-Vis) spectroscopy; the electrochemical determination of the behavior of green coffee extract; and the determination of antioxidant properties by colorimetric spectroscopic methods (ABTS, DPPH, FRAP and CUPRAC). …”
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    Article
  15. 175

    Selective Oxidation of Glycerol with 3% H2O2 Catalyzed by LDH-Hosted Cr(III) Complex by Gongde Wu, Xiaoli Wang, Taineng Jiang, Qibo Lin

    Published 2015-11-01
    “…A series of layered double hydroxides (LDHs) –hosted sulphonato-salen Cr(III) complexes were prepared and characterized by various physico-chemical measurements, such as Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Vis), powder X-ray diffraction (XRD), transmission electron microscope (TEM), scanning electron microscope (SEM) and elemental analysis. …”
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    Article
  16. 176

    Biosynthesis, Characterization, Adsorption and Antimicrobial studies of Manganese oxide Nanoparticles Using Punica Granatum Extract by Angham Tariq Ali, Lekaa K. Abdul Karem

    Published 2024-03-01
    “… Manganese sulfate and Punica granatum plant extract were used to create MnO2 nanoparticles, which were then characterized using techniques like Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, atomic force microscopy, X-ray diffraction, transmission electron microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. …”
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    Article
  17. 177

    Synthesis of Ball-Like Ag Nanorod Aggregates for Surface-Enhanced Raman Scattering and Catalytic Reduction by Wenjing Zhang, Yin Cai, Rui Qian, Bo Zhao, Peizhi Zhu

    Published 2016-05-01
    “…These Ag mesostructures were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), and X-ray diffraction (XRD). …”
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    Article
  18. 178

    Effects of Ultrasound Irradiation on the Co-Pigmentation of the Added Caffeic Acid and the Coloration of the Cabernet Sauvignon Wine during Storage by Zhendan Xue, Tingting Wang, Qing’an Zhang

    Published 2022-04-01
    “…The wine color, chroma, level of the monomeric, combined and polymerized anthocyanins and the concentrations of malvidin-3-O-glucoside and syringic acid in wines were determined by the high-performance liquid chromatography (HPLC), ultraviolet-visible spectroscopy, respectively. The results indicate that ultrasound irradiation could definitely affect the color characteristic of wine to a certain extent. …”
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    Article
  19. 179

    Green production and analysis of silver nanoparticles utilizing Pathor Kuchi Leaf by N. Y. Tanisa, Md Kamrul Alam khan, M. Salahuddin

    Published 2023-09-01
    “…X-Ray Powder Diffraction (XRD), Fourier Transform Infrared (FTIR), Ultraviolet–Visible Spectroscopy (UV–Vis), and Scanning Electron Microscopy (SEM) have been used to look into Ag NPs generation. …”
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    Article
  20. 180

    Bismuth/bismuth oxide-incorporated reduced graphene oxide nanocomposite: synthesis, characterisation, and photocatalytic activity by Merfat Algethami

    Published 2022-01-01
    “…Additionally, ultraviolet-visible spectroscopy was used to determine the optical properties of rGO@Bi/Bi _2 O _3 . …”
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    Article