scholarly journals Photodecomposition of hydrogen peroxide in highly saline aqueous medium

2006 ◽  
Vol 23 (3) ◽  
pp. 341-349 ◽  
Author(s):  
A. J. Luna ◽  
C. A. O. Nascimento ◽  
O. Chiavone-Filho
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Medium

scholarly journals Enhanced Performance of Hydrogen Peroxide Modified Pozzolan-Based Geopolymer for Abatement of Methylene Blue from Aqueous Medium

Silicon ◽  
2021 ◽  
Author(s):  
Dzoujo T. Hermann ◽  
Sylvain Tome ◽  
Victor O. Shikuku ◽  
Jean B. Tchuigwa ◽  
Alex Spieß ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Methylene Blue ◽  
Aqueous Medium

Oxidation of Acetic Acid by Hydrogen Peroxide in the Aqueous Medium in Supercritical Fluid Conditions

2019 ◽  
Vol 13 (7) ◽  
pp. 1131-1134
Author(s):  
S. V. Mazanov ◽  
A. U. Aetov ◽  
R. A. Usmanov ◽  
R. R. Gabitov ◽  
Z. I. Zaripov ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Aqueous Medium ◽  
Supercritical Fluid

Osmium-Catalyzed Selective Oxidations of Methane and Ethane with Hydrogen Peroxide in Aqueous Medium

2007 ◽  
Vol 349 (7) ◽  
pp. 1199-1209 ◽  
Author(s):  
Qiang Yuan ◽  
Weiping Deng ◽  
Qinghong Zhang ◽  
Ye Wang
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Medium

scholarly journals Abatement efficiency and fate of EPA-Listed PAHs in aqueous medium under simulated solar and UV-C irradiations, and combined process with TiO2 and H2O2

2020 ◽  
Vol 37 (1) ◽  
pp. 15-27
Author(s):  
Navid Kargar ◽  
Ali Reza Amani-Ghadim ◽  
Amir Abbas Matin ◽  
Golnar Matin ◽  
Hasan Baha Buyukisik
Keyword(s):  
Hydrogen Peroxide ◽  
Titanium Dioxide ◽  
Aqueous Medium ◽  
Time Course ◽  
High Efficiency ◽  
Gas Chromatography Mass Spectrometry ◽  
H2o2 Treatment ◽  
Removal Process ◽  
Xenon Light ◽  
Uv C

Photolytic degradation of dissolved compounds of 16 EPA-Listed PAHs in aqueous medium, exposed to ultraviolet/ titanium dioxide (UV-C/TiO2), xenon light/ titanium dioxide (Xe/TiO2), xenon light/ hydrogen peroxide (Xe/H2O2) and ultraviolet/ hydrogen peroxide (UV-C/H2O2) was studied. The compounds which detected above detection limit of applied analytical method and instrument include: naphthalene (Nap), acenaphthylene (Acy), acenaphthene (Ace), fluorene (Flu), fluoranthene (Fln) and pyrene (Pyr) survived. A time-course experiment (0, 1, 2, 5, 12 min) was performed to determine the fate of PAHs profile along treatments. After accomplishment of the removal process ∑6 PAHs ranked as follow: UV-C/TiO2 > Xe/TiO2 > UV-C > Xe > Xe/H2O2, and UV-C /H2O2 with estimated values of 76.38, 23.02, 22.55, 2.78, 0.00 and 0.00% of the concentration values at the beginning of the treatment, respectively. High efficiency of Xe/H2O2 treatment process (100.00%) at the end of treatment and the structure of residual PAHs which changed to the lighter compounds (2,3-ringed PAHs) before accomplishment of the removal process were proven. Generally, low resistance of Fln to all treatment conditions was observed. Total removal of Nap was considered to be a characteristic PAH compound for completion of the removal of PAHs. Mutate of parent PAH compounds and intermediates were analyzed by gas chromatography-mass spectrometry (GC-MS) and the results suggest the evaluating the toxicity of the treated water due to by-product formation concerns.

scholarly journals Iodoamination of Alkenyl Sulfonamides by Potassium Iodide and Hydrogen Peroxide in Aqueous Medium

2019 ◽  
Vol 102 (7) ◽  
Author(s):  
Sabrina Giofrè ◽  
Roberto Sala ◽  
Egle Maria Beccalli ◽  
Leonardo Lo Presti ◽  
Gianluigi Broggini
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Medium ◽  
Potassium Iodide

Paper-based electrodes modified with cobalt phthalocyanine colloid for the determination of hydrogen peroxide and glucose

The Analyst ◽  
2020 ◽  
Vol 145 (7) ◽  
pp. 2716-2724 ◽  
Author(s):  
A. Sánchez-Calvo ◽  
A. Costa-García ◽  
M. C. Blanco-López
Keyword(s):  
Hydrogen Peroxide ◽  
Aqueous Medium ◽  
Carbon Nanomaterials ◽  
Electrochemical Determination ◽  
Colloidal System ◽  
Cobalt Phthalocyanine

Cobalt(ii) phthalocyanine (CoPc) was suspended in aqueous medium and the colloidal system was used as catalyst for the electrochemical determination of hydrogen peroxide on paper-based electrodes modified with carbon nanomaterials.

Green Synthesis of CoFe2O4 and Investigation of its Catalytic Efficiency for Degradation of Dyes in Aqueous Medium

2018 ◽  
Vol 232 (3) ◽  
pp. 359-371 ◽  
Author(s):  
Muhammad Saeed ◽  
Asim Mansha ◽  
Muhammad Hamayun ◽  
Aziz Ahmad ◽  
Atta Ulhaq ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Green Synthesis ◽  
Aqueous Medium ◽  
Heterogeneous Catalysts ◽  
Aqueous Media ◽  
Catalytic Efficiency ◽  
Catalytic Wet Oxidation ◽  
Simple Method ◽  
Langmuir Hinshelwood Mechanism ◽  
Bimetallic Oxides

AbstractThe catalytic wet oxidation is one the methods used for elimination of dyes from aqueous medium in which various metal based materials can be used as heterogeneous catalysts. Bimetallic oxides as heterogeneous catalysts have gained much attention as bimetallization improve the catalytic properties of the resulting particles. The biosynthetic green method is the most viable and simple method for synthesis of bimetallic oxides nanoparticles. Here, we report the green synthesis of CoFe2O4particles usingAzadirachata indicaleaves extract as reducing and stabilizing agent. The synthesized particles were characterized using X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy and scanning electron microscopy. The synthesized CoFe2O4particles were tested as a catalyst for mineralization of rhodamine B and methylene blue dyes in the presence of hydrogen peroxide in aqueous media. More than 95% dyes degraded in 120 min. The reaction kinetics was described in terms of Langmuir–Hinshelwood mechanism which suggests that molecules of dye and hydrogen peroxide adsorbed surface of CoFe2O4and then react together.

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