نتایج جستجو برای: nitrophenols
تعداد نتایج: 172 فیلتر نتایج به سال:
We employ quantum chemical calculations to reveal the mechanisms of HONO generation from photolysis nitrophenols in both gas and aqueous phases, which show that there are considerable atmospheric sources daytime.
Many organic hazardous pollutants, including 2,4-dinitrophenol (2,4-DNP), which are water soluble, toxic, and not easily biodegradable make concerns for environmental pollution worldwide. In the present study, degradation of nitrophenols-contained effluents by using laccase immobilized on the nano-porous silica beads was evaluated. 2,4-DNP was selected as the main constituent of industrial effl...
Nitrophenols can be obtained in high yields via nitrosation-oxidation of phenols by 3methyl-1-sulfonic acid imidazolium chloride f[Msim]Clg as a new Br nsted acidic ionic liquid and NaNO2 at room temperature. In situ generation of HNO2 and a radical-cation mechanism via the nitrous acid catalyzed pathway appear to be applicable to phenol nitration using this reagent system.
3D printing is a manufacturing technique used to prototype devices with customized shapes composed of different materials, including carbon composites. Toxic phenolic compounds are major environmental hazard. Herein, we demonstrate the use carbon-based 3D-printed electrodes for detection chlorophenols and nitrophenols. The influence pH on voltammetric response was studied, an alkaline identifie...
In this study, the composite of aluminum metal-organic framework MIL-68(Al) and reduced graphene oxide (MA/RG) was synthesized via a one-step solvothermal method, and their performances for p-nitrophenol (PNP) adsorption from aqueous solution were systematically investigated. The introduction of reduced graphene oxide (RG) into MIL-68(Al) (MA) significantly changes the morphologies of the MA an...
The evidences as presented by Plantefol (l), Field, Martin, and Field (2, 3), Krahl and Clowes (4), Shoup and Kimler (5), Bodine and Boell (6), Tyler (7), Peiss and Field (8), and Newcomb (9), including the reviews by von Oettinger (10) and Clifton (ll), indicate both the well established stimulatory effect, especially induced by low concentrations, as well as the lesser emphasized depressant e...
Citric-acid-modified polyaniline (P-CA) and P-CA modified with Ag nanoparticles (Ag@P-CA) were prepared via an in situ reduction method. The physicochemical properties of Ag@P-CA compared to unmodified (PANI) PANI-modified (Ag@PANI). had a lower content aniline oligomers Ag@PANI. greater monolayer adsorption capacity for 2-nitrophenol binding affinity as PANI Ag@PANI materials. X-ray photoelect...
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