Showing 901 - 920 results of 1,089 for search '"catalyst"', query time: 0.06s Refine Results
  1. 901

    A Green Approach to the Production of Hybrid Diindolylmethane-Phenylboronic Acids via a 3MCR: Promising Antineoplasic Molecules by Mónica Zarco Juarez, Joel Omar Martínez, Olivia Noguez Cordova, María Inés Nicolás Vazquez, Teresa Ramírez-Apan, Javier Pérez Flores, René Miranda Ruvalcaba, Gabriel Arturo Arroyo Razo

    Published 2013-01-01
    “…Then, the green approach to the production of three novel hybrid diindolylmethanes-phenylboronic acids via a 3MCR is discussed, which features the following: solventless conditions, the use of microwave irradiation to activate the reactions, the absence of catalyst, and an efficient atom economy. The products were achieved with moderate yields (41–61%) within a short time frame (5 min) and appropriately characterized by elemental analysis and spectroscopic methods (NMR: 1H, 13C, 11B; MS: EI, CI, FAB+, HRMS). …”
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  2. 902
  3. 903

    Electrochemical Sensors Based on Single-Wall Carbon Nanotubes in Voltammetric Ascorbic Acid Tests by Natalia V. Ivanova, Elizaveta A. Martynova, Anna I. Vershinina, Maksim V. Lomakin, Galina O. Eremeeva, Olesya R. Gordaya, Sergey D. Shandakov

    Published 2023-12-01
    “…Ethanol served as carbon source while ferrocene was used as catalyst precursor. The single-wall carbon nanotubes were collected on a nitrocellulose filter in the form of films with transmittances of 10% in the middle of the visible wavelength (550 nm). …”
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  4. 904
  5. 905

    Enhanced Photodecomposition of Methylene Blue in Water with Sr1−xKxTiO3−δ@PC-polyHIPEs under UV and Visible Light by Yonghua Gao, Tao Zhang, Qipeng Guo, Lizhen Gao

    Published 2018-01-01
    “…The influences of salinity, temperature, and catalyst concentration on the catalytic activity were studied. …”
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    Article
  6. 906

    Preparation, characterization of mixed-valence antimony-tin phosphomolybdic polyoxometalates and application in the cyclohexanone oxidation in the presence of hydrogen peroxide by Maiouf, Fatma-Zohra, Boumechhour, Abdenour, Benadji, Siham, Dermeche, Leila, Mazari, Tassadit, Lancelot, Christine, Rabia, Chérifa

    Published 2022-09-01
    “…They were characterized and tested in the oxidation of cyclohexanone using hydrogen peroxide in the absence of organic solvent, co-catalyst phase transfer compounds or surfactants. UV–Visible and X-ray photoelectron spectroscopic analyses showed a partially reduced state of POM with coexistence of the couples Mo(VI)/Mo(V), Sb(V)/Sb(III) and Sn(IV)/Sn(II), without affecting their structure, results confirmed by FT-IR and Raman spectroscopies. …”
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  7. 907

    Formation Characteristics of PCDD/Fs in the Co-combustion and Pyrolysis Process of Coal and Sewage Sludge by Mumin Rao, Xiangbo Zou, Ji Ye, Yunfeng Ma, Tieying Mao, Xiaoqing Lin, Xiaodong Li, Jianhua Yan, Shiwei Qin, Cao Kuang

    Published 2021-08-01
    “…On the basis of sufficient carbon sources, the PCA analysis revealed the chlorine source (Cl) and metal catalyst (Fe) should contribute a lot on the formation of PCDD/Fs. …”
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    Article
  8. 908
  9. 909
  10. 910

    The MIL-125(Ti)/Co3O4 towards efficiently removing tetracycline by synergistic adsorption-photocatalysis roles by Qiuyang Dai, Guicheng Gao, Jijun Tang, Rongfei Jiang, Shijiao Sun, Yonglin Ye, Shiyun Li, Rong Xie, Jiaoxia Zhang

    Published 2025-02-01
    “…To enhance the photocatalytic performance of MIL-125(Ti), Co3O4 with a suitable band gap was selected for designing and preparing the heterojunction catalyst. By leveraging the porous nature of metal–organic frameworks, Co3O4 was derived from ZIF-67(Co) to provide additional adsorption sites. …”
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    Article
  11. 911

    A synthesis of academic literature on eco-spirituality by A.H.A. Adow, M.M. Safeer, M.G.H. Mohammed, M. Sayeed Alam, M.M. Sulphey

    Published 2024-10-01
    “…The study also underscores the significance of eco-spirituality as a catalyst for environmental consciousness and sustainable action. …”
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    Article
  12. 912
  13. 913

    Oxidative degradation of sulfamethazine by manganese oxide supported biochar activated periodate: Effect and mechanism by Shuheng Hu, Hao Lu, Wenyi Xie, Shaohua Cao, Jiaqi Shi, Yang Guo, Xin Zhu, Zimu Xu, Han Gao

    Published 2025-01-01
    “…In this study, manganese oxide supported biochar (MBC) was used as a catalyst of periodate (PI) for the oxidative degradation of sulfonamide antibiotic sulfamethazine (SMZ). …”
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  14. 914

    Visible light photocatalytic degradation of tetracycline using copper ferrite nanoparticles synthesized via Glycine-Assisted combustion method by A. Dinesh, K. Radhakrishnan, V. Renuga, Rajendra P. Patil, Suriyaprakash Rajadesingu, S. Suthakaran, L. Guganathan, Manikandan Ayyar, Madhappan Santhamoorthy, Lalitha Gnanasekaran, Munawar Iqbal

    Published 2025-01-01
    “…The photocatalytic degradation of TC was studied using visible light and the effect of parameters such as the concentration of the catalyst (0.5 g/L to 2.5 g/L), initial TC concentration (10– 50 mg/L) and irradiation time (30–150 min). …”
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  15. 915

    An electrolyte-gated transistor for the monitoring of a CRISPR/Cas activity by Pierre Guermonprez, Le Tu Anh, Louis Renaud, Pierre Nioche, Eric Krejci, Aurélie Alleaume-Butaux, Nicolas Battaglini, Vu Thi Thu, Sébastien Sanaur, Benoît Piro

    Published 2025-05-01
    “…In this system, the CRISPR/Cas13a complex acts as a catalyst: in the presence of a specific RNA target sequence, the enzymatic function is activated and the polyU RNA reporter strands are cleaved from the Au nanoparticles, inducing a loss of negative charges on the rGO layer. …”
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  16. 916

    Photo-Fenton Degradation of RB5 Dye in Aqueous Solution Using Fe Supported on Mexican Natural Zeolite by José Domenzain-Gonzalez, José J. Castro-Arellano, Luis A. Galicia-Luna, Luis Lartundo-Rojas

    Published 2019-01-01
    “…The best results on the photo-Fenton degradation was 91% discoloration and 68.5% chemical oxygen demand removal based on an initial concentration RB50=100 mg/L and 10 mg MNZ/Fe (700°C of calcined temperature) at MNZ/Fe=0.05 g/L catalyst dose in aqueous solution, H2O2=3 g/L, pH=2.5, and 180 minutes of reaction time. …”
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  17. 917

    Plasma-enhanced upcycling of mixed plastic waste over La0.6Ca0.4FeO3−δ nano spheres for co-producing hydrogen and high-value carbon by Guoxing Chen, Xiao Yu, Aasir Rashid, Chanchan Li, Marc Widenmeyer, Lina Liu, Bowen Liu, Yi Wang, Gert Homm, Emanuel Ionescu, Tao Shao, Anke Weidenkaff

    Published 2025-03-01
    “…The addition of La0.6Ca0.4FeO3−δ nano spheres as a pre-catalyst further enhanced hydrogen yield by 1.8 times while facilitating the production of value-added carbon nanotube composite materials. …”
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    Article
  18. 918

    Effects of Corporal Punishments on Pupils Learning of English in Selected Primary Schools in Kyanamira Sub-County Kabale District Western Uganda. by Tumwijukye, Wencesilous

    Published 2024
    “…The majority of respondents (51%) who agreed that corporal punishment to be used in primary schools came with the grounds that corporal punishment acted as a catalyst for motivating learners to study by themselves, enhance learners to close their studies, refrain learners from issues that break school laws as well as maintaining punctuality among learners. …”
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    Thesis
  19. 919

    K-Pop Fandom Activism on Social Media: Refuting Accusations of Slacktivism in Internet Activism by Putri Ananda Saka, Zidan Abdul Jabar Saka, Putri Rahmah Nurhakim, Mirna Yusuf, Yuniar Galuh Larasati, Rabiatul Adawiah

    Published 2024-11-01
    “…This activism is able to become a catalyst on social media in the form of real action rather than slacktivism. …”
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  20. 920

    Green synthesis of titanium dioxide photocatalyst using Lactobacillus bulgaricus for processing palm oil mill effluent by L. Agustina, M. Romli, P. Suryadarma, S. Suprihatin

    Published 2024-01-01
    “…The method affect the particle size, crystallinity and phase composition of the produced catalyst. This study aims to develop a green synthesis process of nano- titanium dioxide photocatalysts for the advanced treatment of palm oil mill effluent.METHODS: The green synthesis of titanium dioxide nanoparticles used de Man-Rogosa-Sharpe broth media containing Lactobacillus bulgaricus culture and titanium oxyhydroxide metal oxide. …”
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