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Title
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Corrigendum to “Removal of fluoride from water by nanocomposites of POPOA/Fe3O4, POPOA/TiO2, POPOT/Fe3O4and POPOT/TiO2: modelling and optimization via RSM”
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Type
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JournalPaper
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Keywords
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Removal of fluoride, o-phenetidine, o-anisidine, o-toluidine, Fe3O4, TiO2, electrically switching ion exchange, Response surface methodology, real tap water
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Abstract
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The paper studies the synthesis, performance, and modeling of conducting copolymers poly (o-phenetidine- co-o-anisidine/TiO2), poly (o-phenetidine-co-o-toluidine/TiO2), poly (o-phenetidine-co-o-toluidine/Fe3O4) and poly (o-phenetidine-co-o-anisidine/Fe3O4) on the stainless steel electrode in a batch reactor for removal of fluoride ions. Electrically switching ion exchange as a safety method was used as the ion exchange process. In addition, modeling and optimizing of the process was done by a response surface methodology (RSM) based on central composite design (CCD). The independent variables in the RSM include applied potential (V) and pH of fluoride solution. A real tap water was chosen as the water sample. poly (o-phenetidine-co-o-anisidine/Fe3O4) has shown better results in the fluoride ions removal and regeneration-reuse process. poly (o-phenetidine-co-o-anisidine/Fe3O4) under controlled conditions of pH: 6.26 and applied potential: 1.06V, shows a high ability in fluoride removal of 71.76% and after three successive cycles still has an ability of 16%.
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Researchers
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Jalal Arjmandi (Fourth Researcher), Zohre Merati (Third Researcher), Milad Hojat Ansari (First Researcher), Jalal Basiri Parsa (Second Researcher)
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