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- W2359715489 abstract "Nickel ferrite(NiFe2O4)hollow microspheres with spinel structure were successfully synthesized firstly through a simple and one-step solvothermal route in ethylene glycol(EG)solution,using ferric nitrate(Fe-(NO3)3·9H2O),nickel nitrate(Ni(NO3)2·6H2O)and urea(CO(NH2)2)as starting materials,oleic acid(C17H33-COOH)as surfactant.Secondary its surface was oxidized to the carboxyl-functioned surface by oxidization of potassium permanganate solution.Finally a novel hollow NiFe2O4 microsphere cross-linked chitosan composite adsorbent for heavy metal ions was prepared by precipitation polymerization in chitosan solution with help of coupling activation of 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride(EDC·HCl),using sodium sulfate and sodium hydroxide as the mixed precipitator.Phase structure,morphology and magnetic properties of its corresponding products were characterized by X-ray diffractometer(XRD),high-resolution transmission electron microscope(TEM),Fourier transform infrared spectroscope(FT-IR)and physical property measurement system(PPMS).Moreover,the adsorption and removal property of Pb(Ⅱ)ions of the new adsorbent was also investigated by atomic absorption spectrometer(AAS).The results show that the new hollow NiFe2O4microsphere cross-linked chitosan composite adsorbent possesses a higher adsorption performance for Pb(Ⅱ)ions.Its adsorption data obey the Langmuir equation,and maximum adsorption capacity for Pb(Ⅱ)ions at pH=5and 298Kis 177.0mg/g." @default.
- W2359715489 created "2016-06-24" @default.
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- W2359715489 date "2013-01-01" @default.
- W2359715489 modified "2023-09-27" @default.
- W2359715489 title "Preparation and Characterization of Hollow NiFe_2O_4 Microsphere Cross-linked Chitosan Composite Adsorbent" @default.
- W2359715489 hasPublicationYear "2013" @default.
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