Reduction of Chlorinated Ethanes by Nanosized Zero-Valent Iron:  Kinetics, Pathways, and Effects of Reaction Conditions

2005 ◽  
Vol 39 (16) ◽  
pp. 6237-6245 ◽  
Author(s):  
Hocheol Song ◽  
Elizabeth R. Carraway
Keyword(s):  
Zero Valent Iron ◽  
Reaction Conditions ◽  
Iron Kinetics

scholarly journals Heterogeneous Fenton-Like Catalytic Degradation of 2,4-Dichlorophenoxyacetic Acid by Nano-Scale Zero-Valent Iron Assembled on Magnetite Nanoparticles

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2909 ◽  
Author(s):  
Xiaofan Lv ◽  
Yiyang Ma ◽  
Yangyang Li ◽  
Qi Yang
Keyword(s):  
Hydrogen Peroxide ◽  
Synergistic Effects ◽  
Degradation Process ◽  
Zero Valent Iron ◽  
Dichlorophenoxyacetic Acid ◽  
Heterogeneous Fenton ◽  
Reaction Conditions ◽  
Nano Zero Valent Iron ◽  
2,4 Dichlorophenoxyacetic Acid ◽  
Better Than

Fe0@Fe3O4 nanoparticles with dispersibility and stability better than single nano zero-valent iron (nZVI) were synthesized and combined with hydrogen peroxide to constitute a heterogeneous Fenton-like system, which was creatively applied in the degradation of 2,4-dichlorophenoxyacetic acid (2,4-D). The effects of different reaction conditions like pH, hydrogen peroxide concentration, temperature, and catalyst dosage on the removal of 2,4-D were evaluated. The target pollutant was completely removed in 90min; nearly 66% of them could be mineralized, and the main intermediate product was 2,4-dichlorophenol. Synergistic effects between nZVI and Fe3O4 made the 2,4-D degradation efficiency in the Fe0@Fe3O4/H2O2 system greater than in either of them alone. More than a supporter, Fe3O4 could facilitate the degradation process by releasing ferrous and ferric ions from the inner structure. The reduction of 2,4-D was mainly attributed to hydroxyl radicals including surface-bound ∙OH and free ∙OH in solution and was dominated by the former. The possible mechanism of this Fe0@Fe3O4 activated Fenton-like system was proposed.

Reduction of chlorendic acid by zero-valent iron: Kinetics, products, and pathways

2020 ◽  
Vol 384 ◽  
pp. 121269 ◽  
Author(s):  
Min Sik Kim ◽  
Emily Piggott ◽  
Nick Zrinyi ◽  
Changha Lee ◽  
Anh Le-Tuan Pham
Keyword(s):  
Zero Valent Iron ◽  
Iron Kinetics

As(III) Adsorption from Drinking Water on Nanoscale Zero-Valent Iron: Kinetics and Isotherm Studies

2011 ◽  
Vol 127 (1) ◽  
pp. 39-47 ◽  
Author(s):  
Yuanying Huang ◽  
Dandan Liu ◽  
Zhen Qin ◽  
Xiaoduan Liu ◽  
Lingjin Zhang
Keyword(s):  
Drinking Water ◽  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron ◽  
Iron Kinetics
Sign in / Sign up

Export Citation Format

Share Document