Welcome to LookChem.com Sign In | Join Free

Science Details

Home > Chemical Encyclopedia > Science List > Details
  • Catalytic ozonation of 4-Chloronitrobenzene (cas 100-00-5) by goethite and Fe2+-modified goethite with low defects: A comparative study

  • Add time:07/21/2019    Source:sciencedirect.com

    In this study, Fe2+-modified goethite with low defects (α-Fe(Fe2+)OOH) was synthesized and characterized. Results revealed that α-Fe(Fe2+)OOH is a nano magnetic material with goethite (α-FeOOH) -type structures and has fewer Lewis acid of Fe3+ on its surface. Moreover, α-Fe(Fe2+)OOH was effective in catalytic ozonation of 4-Chloronitrobenzene (cas 100-00-5) (4-CNB), which is a probe contaminant that cannot be efficiently removed through sole ozonation. The removal of 4-CNB increased with ozone concentration and α-Fe(Fe2+)OOH dosage, but decreased with the presence of carbonate, sulfate and phosphate. The catalytic activity of α-Fe(Fe2+)OOH also showed a dependence on solution pH. The presence of humic acid accelerated 4-CNB removal at low concentration but inhibited the removal at high concentration. In comparison with α-FeOOH, α-Fe(Fe2+)OOH significantly enhanced hydroxyl radicals generation and reduced Fe ions release in this process. The hydroxyl groups of Fe3+ on α-FeOOH and α-Fe(Fe2+)OOH surface was active site for ozone decomposition into hydroxyl radicals. Introducing Fe2+ significantly increased the density of surface hydroxyl groups relative to α-FeOOH. This enhancement significantly promoted hydroxyl radicals generation and 4-CNB degradation in the solution.

    We also recommend Trading Suppliers and Manufacturers of 4-Chloronitrobenzene (cas 100-00-5). Pls Click Website Link as below: cas 100-00-5 suppliers

    Prev:A Novel Method for Enhancing Strains’ Biodegradation of 4-Chloronitrobenzene (cas 100-00-5)
    Next:Reduction of 4-Chloronitrobenzene (cas 100-00-5) in a bioelectrochemical reactor with biocathode at ambient temperature for a long-term operation)

  • Back】【Close 】【Print】【Add to favorite
Periodic Table
    Related Products