Results 1 to 10 of about 5,080,772 (270)

Kinetic Analysis of 4-Nitrophenol Reduction by “Water-Soluble” Palladium Nanoparticles [PDF]

open access: yesNanomaterials, 2020
The most important model catalytic reaction to test the catalytic activity of metal nanoparticles is the reduction of 4-nitrophenol to 4-aminophenol by sodium borohydride as it can be precisely monitored by UV–vis spectroscopy with high accuracy.
Anas Iben Ayad   +3 more
doaj   +6 more sources

The Competition between 4-Nitrophenol Reduction and BH4 Hydrolysis on Metal Nanoparticle Catalysts [PDF]

open access: yesMolecules, 2023
Assessing competitive environmental catalytic reduction processes via NaBH4 is essential, as BH4− is both an energy carrier (as H2) and a reducing agent. A comprehensive catalytic study of the competition between the borohydride hydrolysis reaction (BHR,
Shalaka Varshney   +3 more
doaj   +3 more sources

Magnetic alginate–carboxymethyl cellulose to immobilize copper nanoparticles as a green and sustainable catalyst for 4-nitrophenol reduction [PDF]

open access: yesHeliyon, 2023
In the present work, sustainable green catalysts with high activity, and excellent stability were prepared and thoroughly characterized by XRD, FT-IR, BET, VSM, SEM, EDX, HR-TEM, and TGA techniques.
Helmiyati Helmiyati   +2 more
doaj   +3 more sources

Cu/CuO-Doped ZnO Nanocomposites via Solution Combustion Synthesis for Catalytic 4-Nitrophenol Reduction. [PDF]

open access: yesACS Omega, 2023
The synthesis of optoelectrically enhanced nanomaterials should be continuously improved by employing time- and energy-saving techniques. The porous zinc oxide (ZnO) and copper-doped ZnO nanocomposites (NCs) were synthesized by the time- and energy ...
Abebe B   +4 more
europepmc   +2 more sources

Synthesis and Catalytic Activity for 2, 3, and 4-Nitrophenol Reduction of Green Catalysts Based on Cu, Ag and Au Nanoparticles Deposited on Polydopamine-Magnetite Porous Supports [PDF]

open access: yesNanomaterials, 2023
This work reports on the synthesis of nine materials containing Cu, Ag, Au, and Ag/Cu nanoparticles (NPs) deposited on magnetite particles coated with polydopamine (PDA).
Helen K. Brown   +6 more
doaj   +2 more sources

Size-Dependent Catalytic Activity of PVA-Stabilized Palladium Nanoparticles in p-Nitrophenol Reduction: Using a Thermoresponsive Nanoreactor. [PDF]

open access: yesACS Omega, 2021
Palladium nanoparticles (Pd NPs) of various average global diameters (2.1–7.1 nm) encapsulated with hydrophilic polymer polyvinyl alcohol (PVA) have been synthesized and used as catalysts for sodium borohydride assisted reduction of p-nitrophenol to p ...
Chatterjee S, Bhattacharya SK.
europepmc   +2 more sources

Recent Progress on Covalent Organic Frameworks Supporting Metal Nanoparticles as Promising Materials for Nitrophenol Reduction [PDF]

open access: yesNanomaterials
With the utilization of nitrophenols in manufacturing various materials and the expansion of industry, nitrophenols have emerged as water pollutants that pose significant risks to both humans and the environment.
Mohammad Dinari   +5 more
doaj   +2 more sources

A Comparative Electrochemical Behaviour Study and Analytical Detection of the p-Nitrophenol Using Silver Solid Amalgam, Mercury, and Silver Electrodes [PDF]

open access: yesInternational Journal of Analytical Chemistry, 2011
This work reports a comparative electrochemical behaviour study and p-nitrophenol analytical detection using silver solid amalgam, hanging dropping mercury, and silver electrodes.
Djenaine De Souza   +2 more
doaj   +2 more sources

Highly efficient and recyclable Fe3C/Au@NG catalyst for 4-nitrophenol reduction

open access: yesCatalysis Communications, 2021
In this study, we synthesized uniform Au nanoparticles (NPs) within the pore channels of Fe3C@NG via a simple chemical method. The resulting Fe3C/Au@NG composite catalyst was characterized, and its catalytic performance in the reduction of 4-nitrophenol (
Yan-Lin Wang   +2 more
doaj   +2 more sources

Borohydride-Assisted Surface Activation of Co3O4/CoFe2O4 Composite and Its Catalytic Activity for 4-Nitrophenol Reduction. [PDF]

open access: yesACS Omega, 2019
Surface activation of catalysts is known to be an efficient process to enhance their activity in catalytic processes. The activation process includes the generation of oxygen vacancies, changing the nature of the catalyst surface from acidic to basic and
Ortiz-Quiñonez JL, Pal U.
europepmc   +2 more sources

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