نتایج جستجو برای: persulfate oxidation

تعداد نتایج: 118024  

Journal: :Bioresources 2022

Dialdehyde cellulose was synthesized via the heterogeneous periodate oxidation of microcrystalline in an aqueous solution. The aldehyde content dialdehyde determined nitrate analysis based on a two-step sequential approach. approach first employed hydroxylamine to react with groups and produce oxime Schiff’s replacement reaction. Then, were oxidized persulfate nitrate. concentration analyzed tw...

Journal: :Journal of the Franklin Institute 1922

2017
Monica Brienza Ioannis A. Katsoyiannis

Water scarcity and water pollution is a worldwide problem and has driven research into eco-friendly and low-energy cost efficient remediation. The reuse of wastewater for non-potable purpose after proper treatment is the only sustainable solution to the problem. Advanced oxidation processes (AOP) based on the in-situ generation of hydroxyl radicals have been intensively investigated for this pu...

2013
R. SURESH Vidhya Sagar

Nanostructured poly(anthranilic acid) was synthesized by oxidative polymerization using potassium persulfate as an oxidant and malonic acid (MA) as dopant. The synthesized polymer was characterized by various techniques. The structure of poly(anthranilic acid) was confirmed by FT-IR spectroscopy. The UV-Vis spectra of poly(anthranilic acid) shows π-π* and inter-ring charge transfer bands. The s...

Journal: :The Analyst 2011
Jingqi Tian Hailong Li Wenbo Lu Yonglan Luo Lei Wang Xuping Sun

The chemical oxidation polymerization of m-phenylenediamine (MPD) by ammonium persulfate (APS) at room temperature results in the formation of poly(m-phenylenediamine) (PMPD) microparticles. The subsequent treatment of such microparticles with an aqueous AgNO(3) solution produces Ag nanoparticle (AgNP)-decorated PMPD microparticles. It was found that as-formed AgNPs exhibited remarkable catalyt...

2011
Lei Wang Yingwei Zhang Jingqi Tian Hailong Li Xuping Sun

In this article, we report on the facile and rapid synthesis of conjugation polymer poly(p-phenylenediamine) nanobelts (PNs) via room temperature chemical oxidation polymerization of p-phenylenediamine monomers by ammonium persulfate in aqueous medium. We further demonstrate the proof-of-concept that PNs can be used as an effective fluorescent sensing platform for nucleic acid detection for the...

2011
M. RASHID

The kinetic study on the oxidation of aniline with oand p-methylaniline by ammonium persulfate (APS) has been carried out. The course of copolymerization was investigated by UV-vis spectroscopic method. Structural characterization was studied by FT-IR spectral analysis. The electronic spectra of the copolymers poly(aniline-co-p-toluidine) and poly(aniline-co-o-toluidine) show hypsochromic shift...

Journal: :Talanta 2005
M J Reis Lima Ildikó V Tóth António O S S Rangel

A sequential injection system based on the ABTS (2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulphonic-acid) methodology was developed. The proposed method, incorporating a mixing chamber in the side port of the selection valve, was evaluated to measure the total antioxidant activity of several beverages and foods. The ABTS(+) is generated by oxidation of ABTS with potassium persulfate and is redu...

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