scholarly journals A Silica-Supported Iron Oxide Catalyst Capable of Activating Hydrogen Peroxide at Neutral pH Values

2009 ◽  
Vol 43 (23) ◽  
pp. 8930-8935 ◽  
Author(s):  
Anh Le-Tuan Pham ◽  
Changha Lee ◽  
Fiona M. Doyle ◽  
David L. Sedlak
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Oxide Catalyst ◽  
Ph Values ◽  
Neutral Ph ◽  
Iron Oxide Catalyst ◽  
Supported Iron

Dehydrogenation of ethylbenzene in the presence of CO2 over an alumina-supported iron oxide catalyst

2003 ◽  
Vol 239 (1-2) ◽  
pp. 71-77 ◽  
Author(s):  
Masahiro Saito ◽  
Hiroshi Kimura ◽  
Naoki Mimura ◽  
Jingang Wu ◽  
Kazuhisa Murata
Keyword(s):  
Iron Oxide ◽  
Oxide Catalyst ◽  
Iron Oxide Catalyst ◽  
Dehydrogenation Of Ethylbenzene ◽  
Supported Iron

Heterogeneous catalytic oxidation of hypophosphite by H2O2: pH effect

2007 ◽  
Vol 55 (12) ◽  
pp. 89-93 ◽  
Author(s):  
C.-C. Hung ◽  
Y.-H. Huang ◽  
C.-Y. Chen
Keyword(s):  
Hydrogen Peroxide ◽  
Iron Oxide ◽  
Catalytic Oxidation ◽  
Organic Contaminants ◽  
Oxide Catalyst ◽  
Removal Rate ◽  
Ph Effect ◽  
Fluidised Bed ◽  
Heterogeneous Catalytic ◽  
Iron Oxide Catalyst

Phosphorus chemicals control key aspects of eutrophication and other environmental process. Hypophosphite (HP) originating from manmade and natural sources was evidenced as present in the environment and was investigated rarely. Recently, iron oxide has been used as a catalyst for oxidising organic contaminants with hydrogen peroxide (i.e. heterogeneous Fenton-like reaction). This study focused mainly on the oxidation of 1.0 mM HP by hydrogen peroxide in the presence of a novel iron oxide catalyst (B1 catalyst) which was prepared through a fluidised-bed Fenton reactor (FBR-Fenton). The background experiments including the oxidation experiment of HP by air only, by H2O2 only and adsorption of HP by B1 catalyst were first elucidated. It was found that HP could not be oxidised at all by air and H2O2 at pH 2.5–12 in 24 hours. On the other hand, it could be adsorbed by B1 catalyst with 89.8% removal at pH 2.5 in 5 hours and complete desorption at pH 11.0. Then, we investigated the effects of pH and Fe leaching from the catalyst on the oxidative efficiency of HP. We found that although the removal rate of HP at pH 2.5 is faster than that at pH 4.0, B1 catalyst has a higher HP oxidation efficiency at pH 4.0 than that at pH 2.5. We conclude that it is a major heterogeneous catalytic oxidation by our novel iron oxide catalyst to oxidise HP at pH 4.0. Also, B1 could be a useful and potential catalyst for the treatment of HP wastewater.

Elemental composition of deposits on natural iron oxide catalyst in processing medium-sulfur feed

1995 ◽  
Vol 31 (6) ◽  
pp. 288-292 ◽  
Author(s):  
�. G. Telyashev ◽  
R. R. Vezirov ◽  
I. R. Yavgil'din ◽  
I. O. Tuktarova ◽  
G. G. Telyashev ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Elemental Composition ◽  
Oxide Catalyst ◽  
Iron Oxide Catalyst ◽  
Natural Iron

Fischer-Tropsch synthesis: Impact of potassium and zirconium promoters on the activity and structure of an ultrafine iron oxide catalyst

1995 ◽  
Vol 2 (1-4) ◽  
pp. 1-15 ◽  
Author(s):  
Robert J. O'Brien ◽  
Liguang Xu ◽  
Diane R. Milburn ◽  
Yong-Xi Li ◽  
Kenneth J. Klabunde ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Oxide Catalyst ◽  
Tropsch Synthesis ◽  
Fischer Tropsch ◽  
Fischer Tropsch Synthesis ◽  
Iron Oxide Catalyst

Catalytic activities of sulphate and sulphide in sulphur-promoted iron oxide catalyst for coal liquefaction

Fuel ◽  
1989 ◽  
Vol 68 (5) ◽  
pp. 618-621 ◽  
Author(s):  
T KOTANIGAWA ◽  
S YOKOYAMA ◽  
M YAMAMOTO ◽  
Y MAEKAWA
Keyword(s):  
Iron Oxide ◽  
Oxide Catalyst ◽  
Coal Liquefaction ◽  
Catalytic Activities ◽  
Iron Oxide Catalyst
Sign in / Sign up

Export Citation Format

Share Document