Epoxidation of alkenes with hydrogen peroxide in the presence of molybdenum oxide-tributyltin chloride on charcoal catalysts.

1984 ◽  
Vol 32 (2) ◽  
pp. 418-423 ◽  
Author(s):  
YASUSHI ITOI ◽  
MASAMI INOUE ◽  
SABURO ENOMOTO ◽  
YOSHIHIRO WATANABE
Keyword(s):  
Hydrogen Peroxide ◽  
Molybdenum Oxide ◽  
Tributyltin Chloride ◽  
Epoxidation Of Alkenes

Stereoselective Epoxidation of Alkenes with Hydrogen Peroxide using a Bipyrrolidine‐Based Family of Manganese Complexes

2011 ◽  
Vol 354 (1) ◽  
pp. 65-70 ◽  
Author(s):  
Isaac Garcia‐Bosch ◽  
Laura Gómez ◽  
Alfonso Polo ◽  
Xavi Ribas ◽  
Miquel Costas
Keyword(s):  
Hydrogen Peroxide ◽  
Manganese Complexes ◽  
Stereoselective Epoxidation ◽  
Epoxidation Of Alkenes

Mechanism of [γ-H2SiV2W10O40]4--Catalyzed Epoxidation of Alkenes with Hydrogen Peroxide

2007 ◽  
Vol 46 (5) ◽  
pp. 1727-1736 ◽  
Author(s):  
Yoshinao Nakagawa ◽  
Noritaka Mizuno
Keyword(s):  
Hydrogen Peroxide ◽  
Epoxidation Of Alkenes

scholarly journals Degradation of Remazol Black dye from Aqueous Solution by Heterogeneous NH3(MoO3)3/H2O2 System

2021 ◽  
pp. 67-78
Author(s):  
Kouakou Yao Urbain ◽  
Kambiré Ollo ◽  
Gnonsoro Urbain Paul ◽  
Eroi N’goran Sévérin ◽  
Trokourey Albert
Keyword(s):  
Hydrogen Peroxide ◽  
Molybdenum Oxide ◽  
Degradation Rate ◽  
Dye Degradation ◽  
Degradation Kinetics ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Molybdenum Nanoparticles ◽  
Remazol Black

Aims: The pollution of the environment by organic dyes in water is a matter of great concern. Wastewater containing dyes is difficult to treat by conventional wastewater treatment methods such as coagulation, ozonation, biological treatment, etc. This is why the implementation of an effective method by not generating pollutants secondary is necessary. The objective of this work is to study the degradation of remazol black, an azo dye, by the coupling of hydrogen peroxide - molybdenum oxide nanoparticle. The nanoparticles were synthesized by the aqueous sol-gel method using a reflux assembly. Study Design: Random design. Methodology: The nanoparticles were synthesized by the aqueous sol-gel method using a reflux assembly and then characterized by X-ray diffraction and using software origin to determine the particles size by Scherrer's formula. The influence of hydrogen peroxide, molybdenum oxide and hydrogen peroxide / molybdenum oxide coupling, and the degradation kinetics of remazol black were studied. We also studied the influence of the pH of the solution, the mass of molybdenum nanoparticles and the concentration of remazol black on the dye degradation process. Results: The results showed that the synthesized oxide is ammonium molybdenum trioxide NH3(MoO3)3) with a hexagonal structure and size 22.79 nm. The study of the catalytic effect revealed a degradation rate of 17%, 0.83% and 42% respectively for H2O2, NH3(MoO3)3 and the coupling NH3(MoO3)3/H2O2. The study also showed that the degradation of remazol black by the couple NH3(MoO3)3 /H2O2 is better at pH = 4 and for a mass of nanoparticles of 400 mg. This degradation kinetics are pseudo 1st order. In addition, the degradation rate decreases when the concentration of remazol black increases. The efficiency of the coupling (NH3(MoO3)3 / H2O2 showed at ambient temperature, that it was possible to remove about 60% of the initial color of remazol black from the water in a batch reaction. Conclusion: The reflux method makes it possible to synthesize molybdenum nanoparticles. The molybdenum oxide hetero-Fenton process is effective in removing remazol black dye from water.

Heterogeneous epoxidation of alkenes with H2O2 catalyzed by a recyclable organic–inorganic polyoxometalate-based framework catalyst

2015 ◽  
Vol 39 (12) ◽  
pp. 9879-9885 ◽  
Author(s):  
Hedayat Haddadi ◽  
Shahrbanou Moradpour Hafshejani ◽  
Mostafa Riahi Farsani ◽  
Ali Kazemi Babahydari
Keyword(s):  
Hydrogen Peroxide ◽  
Selective Oxidation ◽  
Stable Catalyst ◽  
Epoxidation Of Alkenes

PW-MOF as an efficient, recyclable and stable catalyst for the selective oxidation of alkenes with hydrogen peroxide.

Polyoxovanadometalate-Catalyzed Selective Epoxidation of Alkenes with Hydrogen Peroxide

2005 ◽  
Vol 44 (32) ◽  
pp. 5136-5141 ◽  
Author(s):  
Yoshinao Nakagawa ◽  
Keigo Kamata ◽  
Miyuki Kotani ◽  
Kazuya Yamaguchi ◽  
Noritaka Mizuno
Keyword(s):  
Hydrogen Peroxide ◽  
Epoxidation Of Alkenes
Sign in / Sign up

Export Citation Format

Share Document