Characterization and As (Ⅲ) adsorption properties of schwertmannite synthesized by chemical or biological procedures
生物成因与化学成因施氏矿物的合成、表征及其对As(Ⅲ)的吸附

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...