Abstract
Two magnetites (M-20 and M-80) were successfully prepared by two different methods. The XRD patterns showed that M-20 was a poorly crystalline magnetite and M-80 possessed a relatively well crystallinity. For M-20 and M-80, the specific surface area (SSA) was 48.53 and 26.72 m2/g; at pH 5.0 the zeta potential was 28.34 and 23.51 mV; and the isoelectric point (IEP) was 6.8 and 7.0, respectively. At pH 5.0, the Langmuir adsorption capacity for fluoride of M-20 and M-80 was 12.45 and 9.89 mg/g, respectively. This indicates that M-20 is a higher efficient adsorbent for fluoride removal from waters compared to M-80. Langmuir model was suitable to fit the fluoride adsorption data of M-20 and M-80 (R2 =0.988 and 0.982, respectively) and Freundlich model can not well fit the fluoride adsorption data of the two magnetites (R2 =0.937 and 0.951, respectively).
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
