Sonochemical Composition of Humic Substances with Magnetic Nanoparticles and H2O2

Song Lin Wang; Ming Dan; Si Wu; Ning Zhou; Qi Zhang

doi:10.4028/www.scientific.net/AMM.522-524.439

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 522-524Sonochemical Composition of Humic Substances with...

Sonochemical Composition of Humic Substances with Magnetic Nanoparticles and H₂O₂

Abstract:

The experiments of TOC and UV₂₅₄removal of humic acid (HA) solution by ultrasound (US) irradiation with the presence of H₂O₂ and Fe₃O₄ nanoparticles (NP) were carried out. The comparison of enhancement effect of humic acid sonolysis by H₂O₂ and NP was investigated. It was found that removal efficiency of TOC and UV₂₅₄ increased significantly in the order of US< US/NP< US/H₂O₂< NP/H₂O₂< US/NP/H₂O₂. During US/NP/H₂O₂ combining process, the contribution of H₂O₂ should be presenting most OH radicals for humic acid degradation, Fe₃O₄ nanoparticles would supply adsorption surface for humic acid to have more chance to be oxidized, and ultrasonic would work as main energy for OH radicals generation and offer sonochemical environment.

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Periodical:

Applied Mechanics and Materials (Volumes 522-524)

Pages:

439-444

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.522-524.439

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Online since:

February 2014

Authors:

Song Lin Wang*, Ming Dan, Si Wu, Ning Zhou, Qi Zhang

Keywords:

Fe₃O₄ Nanoparticles, H₂O₂, Humic Acid (HA), Ultrasound

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* - Corresponding Author

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