Citation: Viran P. Mahida, Manish P. Patel. Synthesis of new superabsorbent poly (NIPAAm/AA/N-allylisatin) nanohydrogel for effective removal of As(Ⅴ) and Cd(Ⅱ) toxic metal ions[J]. Chinese Chemical Letters, ;2014, 25(4): 601-604. doi: 10.1016/j.cclet.2014.01.031 shu

Synthesis of new superabsorbent poly (NIPAAm/AA/N-allylisatin) nanohydrogel for effective removal of As(Ⅴ) and Cd(Ⅱ) toxic metal ions

Viran P. Mahida ,
Manish P. Patel ^,

1.
Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar 388120, India

Corresponding author: Manish P. Patel,
Received Date: 2 August 2013
Available Online: 2 January 2014

The present studies highlight the effective removal of As(Ⅴ) and Cd(Ⅱ) from aqueous solutions by superabsorbent poly (NIPAAm/AA/N-allylisatin) nanohydrogel. Batch removal studies were performed as a function of treatment time, initial metal ion concentration, pH, and adsorbent dose. TEM micrographs confirm the particle size distribution in the range between 5 nmand 10 nm. The simple and metal ions adsorbed nanohydrogels were characterized by FT-IR, TGA, and EDX analysis. Finally, the equilibrium removal efficiency of the nanohydrogel was analyzed according to the Langmuir and Freundlich adsorption isotherm models which showed the removal of As(Ⅴ) and Cd(Ⅱ) metal ions fitted to Freundlich and Langmuir isotherms, respectively. Removal efficiency order of the metal ions is As(Ⅴ) > Cd(Ⅱ).
- Removal,
- Toxic metal ions,
- Superabsorbent,
- Nanohydrogel
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沈阳化工大学材料科学与工程学院沈阳 110142