Showing 481 - 500 results of 1,089 for search '"catalyst"', query time: 0.07s Refine Results
  1. 481

    COMPUTER SOFTWARE AIDED PHOTOCATALYTIC DEGRADATION OF VAT YELLOW DYE USED IN LEATHER AND TEXTILE INDUSTRIES by Olabode Victor O., Alogala J.A., Jinaidu Haruna M., Okon U.E, Jahkeng Williams E

    Published 2023-11-01
    “…This research investigated design of experiment for the optimization of the experimental parameters of the photocatalytic degradation of VAT yellow dye using dye concentration (mg/L), catalyst dosage (mg/L), pH and time of exposure (minates) as experimental factors. …”
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  2. 482
  3. 483

    Catalytic epoxidation of unsaturated fatty acids in palm stearin via in situ peracetic acids mechanism by Norin Hafizah Rahim, Mohd Jumain Jalil, Nabisab Mujawar Mubarak, Intan Suhada Azmi, Gnanasambandam Anbuchezhiyan

    Published 2025-02-01
    “…This research focuses on the impact of a process parameter on the epoxidation of palm stearin when zeolite ZSM-5 is used as a catalyst. This study synthesized peracetic acid as the oxidizing agent by combining hydrogen peroxide and acetic acid, adjusting molar ratios relative to palm stearin. …”
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  4. 484

    Curcumin: Synthesis optimization and in silico interaction with cyclin dependent kinase by Ahmed Mahmood, Abdul Qadir Muhammad, Imtiaz Shafiq Muhammad, Muddassar Muhammad, Hameed Abdul, Nadeem Arshad Muhammad, Asiri Abdullah M.

    Published 2017-09-01
    “…In this study, curcumin synthesis was revisited using different reaction solvents, a catalyst (n-butylamine) and a water scavenger [(n-BuO)3B], to develop the optimal procedure for its rapid acquisition. …”
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    Article
  5. 485

    Photocatalytic Degradation of Organic Dyes by H4SiW6Mo6O40/SiO2 Sensitized by H2O2 by Li Yu, Yongkui Huang, Yun Yang, Yulin Xu, Guohong Wang, Shuijin Yang

    Published 2013-01-01
    “…After being used continuously for four times, the catalyst kept the inherent photocatalytic activity for degradation of dyes. …”
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  6. 486

    Reduction of Aldehydes and Ketones to Corresponding Alcohols Using Diammonium Hydrogen Phosphite and Commercial Zinc Dust by K. Anil Kumar, D. Channe Gowda

    Published 2011-01-01
    “…A mild and an efficient system has been developed for the reduction of aromatic aldehydes and ketones to their corresponding alcohols in good yield using inexpensive commercial zinc dust as catalyst and diammonium hydrogen phosphite as a hydrogen donor.…”
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  7. 487

    L’Afrique sub-saharienne face aux famines énergétiques by Géraud Magrin

    Published 2008-02-01
    “…Everywhere innovations have to be sought so that economy be no more an hindrance, but a development catalyst.…”
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  8. 488

    Enhanced Ciprofloxacin Ozonation Degradation by an Aqueous Zn-Cu-Ni Composite Silicate: Degradation Performance and Surface Mechanism by Yue Liu, Rong Guo, Jie Li, Yizhen Cheng, Congmin Wang, Weiqiang Wang, Huifan Zheng

    Published 2025-01-01
    “…The chemical coprecipitation method was used in this study to prepare the Zn-Cu-Ni composite silicate, serving as a heterogeneous ozonation catalyst. The catalytic activity was then evaluated by degrading ciprofloxacin (CIP). …”
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  9. 489

    Synthesis of Mesoporous ZnO•SiO2 Nanocomposite from Rice Husk for Enhanced Degradation of Organic Substances Including Janus Green B under Visible Light by Thu Huong Nguyen, Tuan Cuong Vu, Trung Phong Le, Thu Huyen Nguyen, Xuan Truong Do, Anh-Tuan Vu

    Published 2024-10-01
    “…The effects of operating parameters on the photo-degradation reaction progress, including catalyst dosage, initial dye concentration, and pH of the initial dye were investigated in detail. …”
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    Article
  10. 490

    Structural modification of defective WO3 by g-C3N4 for photocatalytic gold recovery from non-cyanide-based plating effluent by Pimchanok Longchin, Tesfaye Tadesse Gebremariam, Naphaphan Kunthakudee, Auttawit Thoumrungroj, Thanapol Sutthiphong, Mali Hunsom

    Published 2025-01-01
    “…The obtained results provide a new insight about the photocatalytic recovery of gold from industrial wastewater and also shed light on the application of gold-decorated CN/WO3 − x as a catalyst for other photocatalytic applications.…”
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  11. 491

    Quantum Mechanistic Studies of the Oxidation of Ethylene by Rhenium Oxo Complexes by Emmanuel Adu Fosu, Collins Obuah, Louis Hamenu, Albert Aniagyei, Michael Kojo Ainooson, Krishna K. Govender

    Published 2021-01-01
    “…Of all the complexes studied, the best dioxylating catalyst is ReO3Cl (singlet surface) and the best epoxidation catalyst is ReO3F (singlet surface).…”
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  12. 492

    Study of the Catalytic Activity and Surface Properties of Manganese-Zinc Ferrite Prepared from Used Batteries by Katarzyna Winiarska, Roman Klimkiewicz, Włodzimierz Tylus, Agnieszka Sobianowska-Turek, Juliusz Winiarski, Bogdan Szczygieł, Irena Szczygieł

    Published 2019-01-01
    “…The obtained ferrite catalysts differ in terms of microstructure, the number of acid and base sites, and the surface composition depending on the ion precursor used in the combustion process. …”
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  13. 493

    Solar Photocatalytic Degradation of Bisphenol A on Immobilized ZnO or TiO2 by Andreas Zacharakis, Efthalia Chatzisymeon, Vassilios Binas, Zacharias Frontistis, Danae Venieri, Dionissios Mantzavinos

    Published 2013-01-01
    “…The removal of bisphenol A (BPA) under simulated solar irradiation and in the presence of either TiO2 or ZnO catalysts immobilized onto glass plates was investigated. …”
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  14. 494

    Study on Autogenous Heat Technology of Offshore Oilfield: Experiment Research, Process Design, and Application by Yanping Sun, Chengsheng Wang, Jun Sun, Shuliang Ren, Hua Peng, Yueyue Fang, Fangxue Xu

    Published 2021-01-01
    “…Autogenous heat technology uses 2-3 kinds of inorganic salt solution to produce inert gas and release a lot of heat under the action of a catalyst. It is applied to improve heavy oil recovery of the offshore oilfield. …”
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  15. 495

    Utilization of Zinc Dust for a Core Monomer 2-Bromo-3-hexylthien-5-ylzinc Bromide: Its Synthesis and Application for the Preparation of Regioregular Poly(3-hexylthiophene) by Seung-Hoi Kim

    Published 2014-01-01
    “…The oxidative insertion of readily available zinc dust into the carbon-bromine bond of 2,5-dibromo-3-hexylthiophene was efficiently achieved to provide 2-bromo-3-hexylthien-5-ylzinc bromide (I), which was utilized for the preparation of highly regioregular poly(3-hexylthiophene) (P3HT) in the presence of catalytic amounts of Ni-catalyst.…”
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  16. 496

    Walt Whitman, passant moderne by Eric Athenot

    Published 2009-12-01
    “…Starting from an analysis of Whitman’s departure from the Romantic poets’ approach to the urban environment it charts the poems’ progress through various cities and examines the poet’s susceptibility to the language of the working men of Manhattan as the catalyst of his poetic revolution. Elaborating on Baudelaire’s flâneur, the paper finally discusses Whitman’s concept of modernity through an evocation of Manhattan—the city of which the persona of "Song of Myself” proudly calls himself the son—as the idealised territory of a textual democracy in which the reader is made the poet’s equal through an erotics of reading that owes everything to this poetry’s urban origins.…”
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  17. 497

    Synthesis of Some Aryl Chalcones Using Silica-Sulphuric Acid Reagent under Solvent Free Conditions by G. Thirunarayanan, G. Vanangamudi

    Published 2007-01-01
    “…There are two series of α, β-unsaturated ketones derived form Biphenyl and 9H-Fluorenyl, and ketones with various substituted benzaldehydes under solvent free conditions using silica-sulphuric acid as a reagent in an oven. The catalyst silica is reusable and the yields of chalcones are more than 90%. …”
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  18. 498

    An Improved, Highly Efficient Method for the Synthesis of Bisphenols by L. S. Patil, V. S. Suryawanshi, O. B. Pawar, N. D. Shinde

    Published 2011-01-01
    “…An efficient synthesis of bisphenols is described by condensation of substituted phenols with corresponding cyclic ketones in presence of cetyltrimethylammonium chloride and 3-mercaptopropionic acid as a catalyst in extremely high purity and yields.…”
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  19. 499

    Coprophagia in an 8-Year-Old Hospitalized Patient: A Case Report and Review of the Literature by Aleksandra Bacewicz, Katherine Martin

    Published 2017-01-01
    “…Using the case as a catalyst, we discuss what is known about this disorder as well as treatment strategies in the hospital setting.…”
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  20. 500

    Pancartas, grafitis y «memes»: simbología y memoria del 15-M entre lo nacional y transnacional by José Carlos Rueda Laffond, Carlota Coronado Ruiz

    Published 2022-07-01
    “…The 15-M, a protest movement emerged in Madrid in May 2011 as a reaction to the economic, social and political situation in Spain, became a catalyst for powerful symbolic expressions in which the discredit of institutions and representatives was revealed. …”
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