Degradation of 2,4,6-trichlorophenol with peroxymonosulfate catalyzed by soluble and supported iron porphyrins

2017 ◽  
Vol 231 ◽  
pp. 1013-1020 ◽  
Author(s):  
Tuğçe Günay ◽  
Yasemin Çimen
Keyword(s):  
Iron Porphyrins ◽  
Supported Iron

Effect of Support on Oxygen Reduction Reaction Activity of Supported Iron Porphyrins

ACS Catalysis ◽  
2022 ◽  
pp. 1139-1149
Author(s):  
Qi Hua ◽  
Kenneth E. Madsen ◽  
Anne Marie Esposito ◽  
Xinyi Chen ◽  
Toby J. Woods ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Reduction Reaction ◽  
Iron Porphyrins ◽  
Oxygen Reduction Reaction Activity ◽  
Effect Of Support ◽  
Supported Iron

Reductive Dehalogenation of Environmental Contaminants: A Critical Review

1989 ◽  
Vol 24 (2) ◽  
pp. 299-322 ◽  
Author(s):  
R. M. Baxter
Keyword(s):  
Hydrogen Atom ◽  
Aromatic Compounds ◽  
Reductive Dechlorination ◽  
Halogen Atom ◽  
Environmental Contaminants ◽  
Methanogenic Bacteria ◽  
Photochemical Reactions ◽  
Reductive Dehalogenation ◽  
Iron Porphyrins ◽  
Aliphatic Compounds

Abstract It is generally recognized that reductive processes are more important than oxidative ones in transforming, degrading and mineralizing many environmental contaminants. One process of particular importance is reductive dehalogenation, i.e., the replacement of a halogen atom (most commonly a chlorine atom) by a hydrogen atom. A number of different mechanisms are involved in these reactions. Photochemical reactions probably play a role in some instances. Aliphatic compounds such as chloroethanes, partly aliphatic compounds such as DDT, and alicyclic compounds such as hexachlorocyclohexane are readily dechlorinated in the laboratory by reaction with reduced iron porphyrins such as hematin. Many of these are also dechlorinated by cultures of certain microorganisms, probably by the same mechanism. Such compounds, with a few exceptions, have been found to undergo reductive dechlorination in the environment. Aromatic compounds such as halobenzenes, halophenols and halobenzoic acids appear not to react with reduced iron porphyrins. Some of these however undergo reductive dechlorination both in the environment and in the laboratory. The reaction is generally associated with methanogenic bacteria. There is evidence for the existence of a number of different dechlorinating enzymes specific for different isomers. Recently it has been found that many components of polychlorinated biphenyls (PCBs), long considered to be virtually totally resistant to environmental degradation, may be reductively dechlorinated both in the laboratory and in nature. These findings suggest that many environmental contaminants may prove to be less persistent than was previously feared.

Adsorption mechanism of NH3, NO, and O2 molecules over FexOy/AC catalyst surface: a DFT-D3 study

2021 ◽  
Author(s):  
Chaoyue Xie ◽  
Yunlan Sun ◽  
Baozhong Zhu ◽  
Weiyi Song ◽  
Minggao Xu
Keyword(s):  
Activated Carbon ◽  
Adsorption Mechanism ◽  
Catalyst Surface ◽  
Specific Adsorption ◽  
Adsorption Mechanisms ◽  
Iron Based ◽  
Iron Based Catalysts ◽  
Supported Iron ◽  
Denox Efficiency

Activated carbon-supported iron-based catalysts (FexOy/AC) show excellent deNOx efficiency. However, the specific adsorption mechanisms of NH3, NO, and O2 molecules on their surfaces are still unknown. In this study, the...

Highly active and selective supported iron oxide nanoparticles in microwave-assisted N-alkylations of amines with alcohols

2010 ◽  
Vol 12 (7) ◽  
pp. 1281 ◽  
Author(s):  
Camino Gonzalez-Arellano ◽  
Kenta Yoshida ◽  
Rafael Luque ◽  
Pratibha L. Gai
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Microwave Assisted ◽  
Highly Active ◽  
Supported Iron

scholarly journals Vapor-Phase Fabrication and Condensed-Phase Application of a MOF-Node-Supported Iron Thiolate Photocatalyst for Nitrate Conversion to Ammonium

2019 ◽  
Vol 2 (12) ◽  
pp. 8695-8700 ◽  
Author(s):  
Hyeju Choi ◽  
Aaron W. Peters ◽  
Hyunho Noh ◽  
Leighanne C. Gallington ◽  
Ana E. Platero-Prats ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Condensed Phase ◽  
Iron Thiolate ◽  
Supported Iron
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