Preparation of three-dimensionally ordered macroporous iron oxide desulfurizer
Abstract：Iron oxide sorbent with open,interconnected three-dimensionally ordered macroporous（3DOM） structure,was successfully fabricated using polystyrene（PS） colloidal crystal as template.The involved key steps,such as preparing uniform monodispersed sphere,assembling ordered colloidal crystal and calcinations and so on were discussed.Scanning electron microscopy（SEM） images show that the as-prepared（3DOM） iron oxide sorbent has three-dimensionally ordered macroporous which are arrayed highly periodically.X-ray diffraction（XRD） indentifies that the mineral phase of this material is α-Fe2O3.Evaluation of the sorbent for desulfurization was carried out using a thermogravimentric analysis.The results show that compared with reagent α-Fe2O3,（3DOM） α-Fe2O3 exhibite excellent performance both on reactivity and sulfur capacity.The TG experimental results reveal that the pore diffusion can be reduced or eliminated by improving the sorbent textural properties,it is impossible to reduce the solid diffusion.
Keywords：three-dimensionally ordered macroporous（3DOM）Fe2O3desulfurizerhydrogen sulfide
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)