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- Title
Environmental Friendly Synthetic Modifcation of Amberlite XAD-2 Resin for the Removal of Highly Toxic Hexavalent Chromium from Water.
- Authors
Jamil, Waqas; Memon, Zunaira; Memon, Saima Qayyum; Samon, Muhammad Kashif; Taha, Muhammad; Khan, Khalid Mohammad
- Abstract
Amberlite XAD-2 functionalized by coupling through -C=N- spacer with isatin via an environmental friendly protocol. The modified resin was used for the evaluation of its sorption capacity towards toxic Cr (VI) ions using spectrophotometer. pH, volume, sorbent amount, initial concentration of Cr(VI) ions, and agitation time were optimized. The Freundlich and Dubinin- Radushkevich models gave better ft to isotherm data than Langmuir model. The evaluation of kinetic data indicated pseudo-first-order kinetics followed by sorption process. Termodynamic parameters were also evaluated. Maximum recovery was obtained at 10 mL of 0.1M NaOH. Spiking methodology was used to confirm the validity of proposed method. The results revealed that developed method can be used for the removal of Cr(VI) ions efficiently from water, as well as reused for three cycles.
- Subjects
HEXAVALENT chromium; WATER; GUMS & resins; SORPTION
- Publication
Acta Chimica Slovenica, 2020, Vol 67, Issue 1, p260
- ISSN
1318-0207
- Publication type
Academic Journal
- DOI
10.17344/acsi.2019.5412