Reduction of nitro aromatic compounds by zero-valent iron metal

Article Abstract:

Zero-valent iron metal is used to reduce nitrobenzene to aniline under anaerobic conditions, with nitrosobenzene as an intermediate product. Nitrobenzene and nitrosobenzene had similar first-order reduction rates, but a slower reduction rate was noted for aniline. Results indicate that nitro reduction by iron may be used in the remediation of waters contaminated with nitro aromatic compounds if aromatic amines, the primary products, can be removed by subsequent treatment. Nitro reduction by iron is also found to be faster than dechlorination.

Oxidation-reduction reaction, Oxidation-reduction reactions, Aromatic compounds

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Correlation analysis of rate constants for dechlorination by zero-valent iron

Article Abstract:

A new linear free energy relationship (LFER) was formulated to better forecast degrees of dehalogenation by environmental reductants in the absence of an efficient method for dechlorination rates by zero-valent iron. The developed LFER, based on the lowest unoccupied molecular orbital energies, semiempirical estimates, and ab initio techniques, was shown to be efficient as a forecasting implement. However, results are not conclusive in determining the superior LFER for halogenated alkane forecasts.

All Other Basic Organic Chemical Manufacturing, All Other Basic Inorganic Chemical Manufacturing, Industrial Organic Chemicals, Industrial inorganic chemicals, not elsewhere classified, Iron Compounds NEC, Halogenated Hydrocarbons, Halocarbons, Iron compounds, Solvation, Fluorination, Linear free energy relationship

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Formation of nitroaromatic compounds in advanced oxidation processes: photolysis versus photocatalysis

Article Abstract:

Advanced Oxidation Processes (AOP) are in increasing demand for the efficient treatment of organic polluted wastewaters. For technical applications of AOPs a detailed usderstanding oof degradation mechanisms and interactions of organic pollutants with inorganic substrates is essential. The present stsudy investigates the influence of nitrate ions on the photooxidationof phenol for various AOPs at different pH values.

United States, Science & research, Nitroaniline, Pollution, Chemical industry, Nitroaromatic compounds

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