Formation of Aligned Iron Oxide Nanopores as Cr Adsorbent Material
作者： Monna Rozana , KHAIRUNISAK Abdul Razak , G Kawamura , Atsunori Matsuda , Zainovia Lockman
DOI: 10.4028/WWW.SCIENTIFIC.NET/AMR.1087.460
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摘要: Elongated iron oxide nanopores (FNPs) were fabricated by anodisation of in fluoride-ethylene glycol (EG) added to it 1 ml, M KOH electrolyte at three different voltages: 30 V, 40 V and 50 V. It was observed regardless the voltage applied; seem be separated from one another bottom part anodic film forming rather discreet nanotubular structure this region. X-ray diffraction (XRD) used evaluate phases present within layer. γ-FeOOH, Fe (OH)2, FeF5.H2O detected all samples. However, when increased, peaks are more intense indicating either F- insertion layer or crystallization phase higher voltage. After annealing, XRD only hematite; α-Fe2O3 magnetite; Fe3O4 indicative formation transformation had occurred during annealing process. The annealed samples displayed an ability adsorb Cr (VI) with almost % reduction concentration after 5 hours exposure nanoporous film.
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