Results 1 to 10 of about 5,219,551 (261)

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   +5 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   +3 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

Advances in 4‑Nitrophenol Detection and Reduction Methods and Mechanisms: An Updated Review

open access: yesACS Omega
This review emphasizes the progress in identifying and eliminating para-nitrophenol (4-NP), a toxic organic compound. It covers various strategical methods and materials, including organic and inorganic nanomaterials, for detecting and reducing 4-NP ...
Alan Omar Cardoso Juarez   +3 more
doaj   +4 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

Amphiphilic Dendronized Copolymer-Encapsulated Au, Ag and Pd Nanoparticles for Catalysis in the 4-Nitrophenol Reduction and Suzuki-Miyaura Reactions. [PDF]

open access: yesPolymers (Basel)
The branched structures of dendronized polymers can provide good steric stabilization for metal nanoparticle catalysts. In this work, an amphiphilic dendronized copolymer containing hydrophilic branched triethylene glycol moieties and hydrophobic ...
Liu F, Liu X.
europepmc   +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

Simple Environmentally-Friendly Reduction of 4-Nitrophenol [PDF]

open access: yesCatalysts, 2020
The low molecular-mass organic compound 4-nitrophenol is involved in many chemical processes and is commonly present in soils and in surface and ground waters, thereby causing severe environmental impact and health risk. Several methods have been proposed for its transformation (bio and chemical degradation).
Raúl Artal Lopez   +2 more
exaly   +3 more sources

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