Iron porphyrin models of peroxidase enzymes: catalytic activity, regeneration, and oxidative degradation of mesoferriheme

1990 ◽  
Vol 29 (23) ◽  
pp. 4718-4723 ◽  
Author(s):  
Fanny S. Woo ◽  
Mariella Cahiwat-Alquiza ◽  
Henry C. Kelly
Keyword(s):  
Catalytic Activity ◽  
Oxidative Degradation ◽  
Iron Porphyrin ◽  
Peroxidase Enzymes

Cross‐Linked Surface Engineering to Improve Iron Porphyrin Catalytic Activity

Small ◽  
2020 ◽  
Vol 16 (17) ◽  
pp. 1905889 ◽  
Author(s):  
Dongxu Zhang ◽  
Jia Liu ◽  
Peiyao Du ◽  
Zhen Zhang ◽  
Xingming Ning ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Surface Engineering ◽  
Iron Porphyrin

Stable Iron Porphyrin Intramolecularly Coordinated by Alcoholate Anion: Synthesis and Evaluation of Axial Ligand Effect of Alcoholate on Spectroscopy and Catalytic Activity

2019 ◽  
Vol 58 (7) ◽  
pp. 4268-4274
Author(s):  
Yoshinori Shirakawa ◽  
Yuuki Yano ◽  
Yuki Niwa ◽  
Kanako Inabe ◽  
Naoki Umezawa ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Axial Ligand ◽  
Iron Porphyrin ◽  
Ligand Effect

Effects of Substituted Transition Metals (Me:Cr3+, Mn3+, Fe3+ and Mo) on the Fe2+/Modified Silica in the Oxidative Degradation of Reactive Black 5

2015 ◽  
Vol 802 ◽  
pp. 531-536 ◽  
Author(s):  
Norhaslinda Nasuha ◽  
B.H. Hameed
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
Hydroxyl Radicals ◽  
High Stability ◽  
Oxidative Degradation ◽  
Catalytic Performance ◽  
Reactive Black 5 ◽  
Modified Silica

The Fe2+/modified silica catalysts have been substituted with four types of transition metals such as Fe3+, Cr3+, Mn3+ and Mo. The catalytic activity of these catalysts has been tested for the oxidative degradation of Reactive Black 5 (RB5) at 30°C and pH 4.5. The substituted Fe2+/modified silica with Fe3+ (Fe2+:Fe3+/ m-SiO2) exhibited the highest catalytic performance compared to others transition metals by degrading the RB5 nearly to 95%. This catalyst possessed on high stability by maintaining its performance during the three successive cycles of reaction. These findings can be ascribed to the plausible enhancement in the formation of hydroxyl radicals (HO●) due to the effective redox between Fe2+ and Fe3+

Sign in / Sign up

Export Citation Format

Share Document