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Magnetically recoverable Ni@C composites: The synthesis by carbonization and adsorption for Fe3+.
- Source :
-
Journal of Alloys & Compounds . Sep2017, Vol. 718, p15-21. 7p. - Publication Year :
- 2017
-
Abstract
- Carbon-encapsulated nickel particles ( Ni@C composites) for removing Fe 3+ in wastewater have been prepared by the carbonization of phenolic resin mixing with nickel particles. XRD results reveal that the Ni@C composites are consisted of C, Ni, and Ni 3 S 2 . The TG-DTG curves of Ni@C composites are almost same as that of phenolic resin. The morphology investigation shows that Ni is distributed randomly on carbon. Based on analysis of N 2 adsorption-desorption isotherm, the surface area and pore volume of Ni@C composites are 187.47 m 2 g −1 and 0.06900 cm 3 g −1 nm −1 , respectively. The saturation magnetization values for Ni@C composites are 68.99 emu·g −1 determined by the Vibrating Sample Magnetometer. Ni@C composites exhibit a high adsorption capacity for Fe 3+ . The adsorption behavior follows the pseudo-second-order kinetic and Langmuir model between the adsorbents and Fe 3+ . Furthermore, the adsorption capacity of Ni@C composites derives from the attractive force between the adsorbed anion and the surface positive charge of Ni@C composites, as well as the bond between the adsorbed cation and the COO − groups. From the above results Ni@C composites can be widely applied in wastewater treatment as a new efficiency and excellent recoverable adsorbent. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CARBONIZATION
*ADSORPTION (Chemistry)
*NICKEL
*MAGNETIZATION
*CHEMICAL synthesis
Subjects
Details
- Language :
- English
- ISSN :
- 09258388
- Volume :
- 718
- Database :
- Academic Search Index
- Journal :
- Journal of Alloys & Compounds
- Publication Type :
- Academic Journal
- Accession number :
- 123502630
- Full Text :
- https://doi.org/10.1016/j.jallcom.2017.05.029