- Title
- Biosynthesized iron-based nanoparticles used as a heterogeneous catalyst for the removal of 2,4-dichlorophenol
- Creator
- Guo, Mengyu; Weng, Xiulan; Wang, Ting; Chen, Zuliang
- Relation
- Separation and Purification Technology Vol. 175, p. 222-228
- Publisher Link
- http://dx.doi.org/10.1016/j.seppur.2016.11.042
- Publisher
- Pergamon Press
- Resource Type
- journal article
- Date
- 2017
- Description
- Iron-based nanoparticles (Fe NPs) synthesized by Euphorbia cochinchensis leaves extracts and used for degradation of 2,4-dichlorophenol (2,4-DCP) were investigated. The TEM image indicated Fe NPs were spherical and uniformly dispersed particles with a diameter of about 100 nm. The XPS results indicated Fe NPs consisted mainly of Fe(III), Fe(II), iron oxide and hydroxide. Results confirmed that the efficiency to remove 2,4-DCP was 20.6% by adsorption. The efficiency increased to 51.9% when Fe NPs were used as Fenton-like catalyst in the presence of H₂O₂. However, the removal efficiency of 2,4-DCP reached up to 64.0% when adsorption and Fenton-like oxidation were integrated. The kinetic data fitted well with the pseudo-second-order kinetic model of adsorption, while the Fenton-like process fitted the pseudo-first-order oxidation model. Furthermore, the degraded products were detected by gas chromatography mass spectrometry (GC–MS) to verify the mechanisms of degradation. It is concluded that removal of 2,4-DCP via adsorption/Fenton-like oxidation.
- Subject
- 2,4-Dichorophenol; biosynthesis; iron-based nanoparticles; adsorption; Fenton-like oxidation
- Identifier
- http://hdl.handle.net/1959.13/1397550
- Identifier
- uon:34312
- Identifier
- ISSN:1383-5866
- Language
- eng
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