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Characterization and As (Ⅲ) adsorption properties of schwertmannite synthesized by chemical or biological procedures

Keywords: 施氏矿物,生物成因,化学成因,表征,吸附,As(Ⅲ)

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An amorphous ferric hydroxysulfate named schwertmannite,as a novel material,has played an important role in transference and passivation of toxic heavy metals. In this study,schwertmannite was synthesized by two different procedures:chemical oxidation of ferrous iron by H2O2 and bacterial oxidation of ferrous iron by resting Acidithiobacillusferrooxidans cells in ferrous sulfate solution. The components,structures and surface areas of the minerals were analyzed and characterized by XRD,SEM,Ic and BET. In ad...


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