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Preparation of Fenton reagent with H2O2 generated by solar light-illuminated nano-Cu2O/MWNTs composites

Paper ID Volume ID Publish Year Pages File Format Full-Text
44207 46007 2006 6 PDF Available
Title
Preparation of Fenton reagent with H2O2 generated by solar light-illuminated nano-Cu2O/MWNTs composites
Abstract

This paper introduces the preparation of needle-shaped cuprous oxide (Cu2O) particles 3–10 nm in diameter and 40–150 nm in length on multiwall carbon nanotubes (MWNTs) by anodic oxidation of copper electrode in alkaline solution. Steady-state concentration of H2O2 as high as 0.42 mM is produced in aqueous suspension of nanosized Cu2O/MWNTs composites illuminated by simulated solar light in the presence of formate and oxygen. Assisted by Fe2+-EDTA, these photogenerated H2O2 can be used as Fenton reagent; hydroxyl radicals have been detected indirectly. The results for the degradation of brilliant red dye indicate that the effect of this new Fenton system (1 g/L nanosized Cu2O/MWNTs composites + Fe2+-EDTA + simulated sun light) can approach that of traditional Fenton system (4 mmol/L H2O2 + Fe2+-EDTA). This system is superior to the classical Fenton system in that it can act effectively for a long time.

Keywords
Nano-Cu2O/MWNTs composites; Anodic oxidation; Simulated solar light; H2O2; Fenton reagent
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Preparation of Fenton reagent with H2O2 generated by solar light-illuminated nano-Cu2O/MWNTs composites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 299, 17 January 2006, Pages 292–297
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
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