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  • synthesis of fe3o4 poly(styrene–glycidyl methacrylate) magnetic porous microspheres and application in the immobilization of klebsiella sp. fd-3 to reduce fe(iii)edta in a nox scrubbing solution

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 496
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     magnetic poly(styrene–glycidyl methacrylate) porous microspheres (mppm) with high magnetic contents were prepared by surfactant reverse micelles and emulsion polymerization of monomers, in which the well-dispersed fe3o4 nanoparticles were modified by polyethylene glycol (peg) and oleic acid (oa) respectively. the characterizations showed that both of the oa–mppm and the peg–mppm were ferromagnetic, however, the oa–mppm was used to immobilize the bacteria for more advantages. therefore, the effects of monomer ratio, surfactant, crosslinker and amount of fe3o4 on the structure, morphology and magnetic contents of the oa–mppm were investigated. then, the oa–mppm was utilized to immobilize klebsiella sp. fd-3, an iron-reducing bacterium for fe(iii)edta reduction applied in nox removal. compared with free bacteria, the immobilized fd-3 showed a better tolerance to the unbeneficial ph and temperature conditions.

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