Research Article

Chemical Vapour Deposition of MWCNT on Silica Coated Fe3O4 and Use of Response Surface Methodology for Optimizing the Extraction of Organophosphorus Pesticides from Water

Figure 2

XRD pattern of Fe3O4 (a), Fe3O4@SiO2 (b), Fe3O4@SiO2-Co (c), and Fe3O4@SiO2-MWCNT (d).

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