Showing 2,221 - 2,240 results of 4,095 for search '"spectroscopy"', query time: 0.08s Refine Results
  1. 2221

    Substrate Effect on Plasma Clean Efficiency in Plasma Enhanced Chemical Vapor Deposition System by Shiu-Ko JangJian, Ying-Lang Wang

    Published 2007-01-01
    “…To understand the substrate effect on PCR, the surface element analysis and bonding configuration are executed by X-ray photoelectron spectroscopy (XPS). The high resolution inductively coupled plasma mass spectrometer (HR-ICP-MS) is used to analyze microelement of metal ions on the surface of shower head in the PECVD chamber. …”
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  2. 2222

    Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles by Yohan Park, Yulri Na, Debabrata Pradhan, Youngku Sohn

    Published 2016-01-01
    “…Herein, M doped (M = Ag, Au, Pd, and Ni) and MM′ codoped CeO2 nanoparticles (NPs) were prepared by a hydrothermal method and their liquid-phase ethanol and gas-phase CO oxidation performances were examined by UV-visible absorption spectroscopy and temperature programmed mass spectrometry, respectively. …”
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  3. 2223

    Efficient Adsorption of Chromium(VI) Ions from Aqueous Solution onto a Low-Cost Adsorbent Developed from (Wood Apple) Shell by Ashish S. Sartape, Prakash D. Raut, Sanjay S. Kolekar

    Published 2010-07-01
    “…The material employed was characterized by scanning electron microscopy (SEM), Fouriertransform infrared spectroscopy (FT-IR) and elemental analysis. The linear Freundlich and Langmuir adsorption isotherm models were applied to describe the experimental equilibrium isotherms. …”
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  4. 2224

    Behavior of activated carbons by compound modification in high gravity for toluene adsorption by Qiang Guo, You-Zhi Liu, Gui-Sheng Qi, Wei-Zhou Jiao

    Published 2018-05-01
    “…The physical characteristics of the activated carbons, including pore size, specific surface area, and morphology are tested by Brunauer–Emmett–Teller and scanning electron microscopy, and the surface functional groups of the activated carbons are determined by Fourier transform infrared spectroscopy and Boehm titration. The results indicate that the activated carbons modified by rotating packed bed have a larger specific surface area (871.5 m 2 /g) and smaller pore size (0.524 nm), and the content of acidic oxygen-containing groups is 1.5 times that of unmodified activated carbons. …”
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  5. 2225

    Production of Biodiesel from Waste Vegetable Oil via KM Micromixer by M. F. Elkady, Ahmed Zaatout, Ola Balbaa

    Published 2015-01-01
    “…The presence of methyl ester groups at the produced biodiesel was confirmed using both the gas chromatography-mass spectrometry (GC-MS) and the infrared spectroscopy (FT-IR). Moreover, the thermal analysis of the produced biodiesel and the comparable waste oil indicated that the product after the transesterification process began to vaporize at 120°C which makes it lighter than its parent oil which started to vaporize at around 300°C. …”
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  6. 2226

    Synthesis, Characterization, and Agricultural Biological Activities of 5-Fluoro-2-hydroxy Butyrophenone by Fengli Xin, Chunhua Du, Gongjia Lan, Zhuanping Wu

    Published 2013-01-01
    “…The structure was characterized by the melting point and IR, MS, 1H-NMR, and 13C-NMR spectroscopy. The bioassay results indicate that the target compound exhibits potent antifungal activities against Valsa mali, Coniella dipodiella, and other agricultural plant fungi. …”
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  7. 2227

    Synthesis of Colloidal Silicon Quantum Dot from Rice Husk Ash by Thu-Huong Le, Dang Thi Thanh Le, Nguyen Van Tung

    Published 2021-01-01
    “…The above results of PL emission spectroscopy and UV-vis absorption show quantum confined effect in Si QDs.…”
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  8. 2228

    Corrosion Resistance and Nano-Mechanical Properties of a Superhydrophobic Surface by Chun-Wei Yao, Ian Lian, Jiang Zhou, Paul Bernazzani, Mien Jao, Md Ashraful Hoque

    Published 2025-01-01
    “…Electrochemical impedance spectroscopy (EIS) results quantitatively confirm the enhanced anti-corrosion performance of the superhydrophobic coating. …”
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  9. 2229

    Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry by D. Keith Roper, Jin-Woo Kim, Ricardo R. Romo, Joseph Batta-Mpouma

    Published 2024-01-01
    “…Enhanced optical and infrared activity of subwavelength metal nanoparticles is key to their use in optoelectronics, spectroscopy, and sensing. The present work compared spectra of nanosphere dimers merged by centrifuging gold nanospheres with corresponding simulated nanoscale dimers. …”
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  10. 2230

    Development of the High Sensitivity and Selectivity Method for the Determination of Histamine in Fish and Fish Sauce from Vietnam by UPLC-MS/MS by Quang Hieu Tran, Thanh Tan Nguyen, Kim Phuong Pham

    Published 2020-01-01
    “…The optimal conditions of liquid chromatographic separation and mass spectroscopy of histamine have also been investigated. …”
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  11. 2231

    FTIR Analysis of Pesticide Active Ingredients into Seasonal Vegetables: Ensuring Food Safety and Raising Awareness by Md. Mejbah Uddin Mithu, Sadia Akter Shormela

    Published 2025-01-01
    “…This study aimed to detect the presence of pesticide active ingredients in raw vegetables using Infrared Spectroscopy (IR). The study involved four fruit vegetables (Eggplants, Tomatoes, Bitter gourd, Green-bean) and 11 different pesticides used by farmers. …”
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  12. 2232

    Biosynthesis of α MnO2 nanorods using Coleus amboinicus leaf extract and its adsorption performance of Pb(II) from aqueous solutions. by Rejani Padmavathiamma, Rani Pillai

    Published 2024-01-01
    “…Various techniques such as XRD, FTIR, SEM EDX ,TEM and UV–VIS spectroscopy have been used to characterize the nanometal oxide. …”
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  13. 2233

    Construction, characterization, and visible light-assisted photocatalytic degradation behaviour of Graphitic carbon nitride (g-C3N4) photocatalyst by hanan hashim

    Published 2024-12-01
    “…In this study, graphite carbon nitride(g-C3N4) synthesized by the thermal calcination process, characterization by various characterization analysis techniques such as Field Emission Scanning Electron Microscopy (FE-SEM), X-ray diffraction (XRD), UV–vis diffuse reflection spectroscopy (DRS), and photoluminescence (PL) spectrum, the DRS analysis shows the boundaries of absorbing light by g-C3N4 to be lies in the visible light region with aband gap of (2.7ev). …”
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  14. 2234

    An Infrared Spectroscopic and Temperature-Programmed Desorption Study of 1,1-Difluoroethylene on Clean and Hydrogen-Covered Pd(111) by Mausumi Mahapatra, Luke Burkholder, Florencia Calaza, Darío Stacchiola, Wilfred T. Tysoe

    Published 2011-06-01
    “…The surface chemistry of 1,1-difluoroethylene was studied on clean and hydrogen-covered Pd(111) using a combination of temperature-programmed desorption and reflection absorption infrared spectroscopy (RAIRS) to explore whether the larger infrared absorbance of 1,1-difluoroethylene than ethylene may be used to examine reactions under realistic catalytic conditions using RAIRS. …”
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  15. 2235

    Investigation of the Corrosion Resistance of Carbon Steel Surface with Oligomeric Silsesquioxane Composite Fluozirconic Acid Conversion Film by CHA Hao, JIANG Yukun, XU Zhonglei, CHEN Jun

    Published 2024-12-01
    “…For improving the corrosion resistance of carbon steel surfaces, a phosphorus free and chromium free fluorozirconic acid composite oligomeric silsesquioxane conversion film was prepared using fluorozirconic acid composite amino/hydroxyl polyhedral oligomeric silsesquioxane(NH2/OH-POSS).The corrosion resistance, surface morphology and composition of the composite film were characterized by saltwater immersion, electrochemical testing, scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).Results showed that the optimal process for the fluoro-zirconate solution combined with the NH2/OH-POSS aqueous solution was 1.2 g/L fluorozirconic acid, 4.5 g/L oligomeric silsesquioxane, pH of 4, the temperature of 30 ℃, the passivation time of 2 min.The saltwater immersion test and electrochemical test indicated that the corrosion resistance of the composite conversion film was significantly improved compared to the pure fluorozirconic acid conversion film.SEM results revealed that the addition of oligomeric silsesquioxane filled the cracks and pores in the fluoro-zirconate film,making the film denser.XPS results confirmed that both oligomeric silsesquioxane and fluoro-zirconate participated in the formation of the conversion film.…”
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  16. 2236

    Study of a fixed-bed column in the adsorption of an azo dye from an aqueous medium using a chitosan–glutaraldehyde biosorbent by Jaime López-Cervantes, Dalia I Sánchez-Machado, Reyna G Sánchez-Duarte, Ma A Correa-Murrieta

    Published 2018-02-01
    “…The biosorbent was prepared from shrimp shells and characterized by scanning electron microscopy, X-ray diffraction, and nuclear magnetic resonance spectroscopy. The effects of chitosan–glutaraldehyde bed height (3–12 cm), inlet Direct Blue 71 concentration (15–50 mg l −1 ), and feed flow rate (1–3 ml min −1 ) on the column performance were analyzed. …”
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  17. 2237

    Removal of Sulfur Dioxide from Flue Gas Using the Sludge Sodium Humate by Yu Zhao, Guoxin Hu

    Published 2013-01-01
    “…The products of this process were characterized by Fourier transform infrared spectroscopy and X-ray diffraction. It can be seen that the desulfurization products mainly contain sludge humic acid sediment, which can be used as fertilizer components.…”
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  18. 2238

    Comparative Investigation on the Properties and Molecular Mechanisms of Natural Phenolic Compounds and Rubber Polymers to Inhibit Oxidative Aging of Asphalt Binders by Fenghua Yang, Zhuang Hu, Hongyi Xi

    Published 2022-01-01
    “…To investigate the inhibitory effects and potential mechanisms of phenolic compounds and crumb tire rubber on the aging deterioration of asphalt binders, the aging characteristics of base asphalt, catechin modified asphalt, and crumb rubber modified asphalt were evaluated using Fourier transform infrared spectroscopy and reactive molecular dynamics simulations. …”
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  19. 2239

    Synthesis and Characterization of Uniform Spherical Nanoporous TiO2 Aerogel Templated by Cellulose Alcohol-Gel with Enhanced Photocatalytic Activity by Zhiming Liu, Peng Wu, Shaoli Yang, Haiying Wang, Chunde Jin

    Published 2016-01-01
    “…The morphology, crystalline structure, pore size, specific surface area, and the photocatalytic activity of obtained TiO2 aerogel were separately characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2 adsorption-desorption isotherms, and double beam UV-VIS spectrophotometer. …”
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  20. 2240

    The production and characterization of PBT/PBS fiber dyeable with dispersed dye by Metanawin Siripan, Sirifongnukul Warot, Metanawin Tanapak

    Published 2025-01-01
    “…The SEM image of the fiber of PBT100 and PBT:PBS blend after dyeing shows that the color dyeing on the fiber increased with PBS contents, supporting the result from spectroscopy.…”
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