Environmental Friendly Synthetic Modification of Amberlite XAD-2 Resin for the Removal of Highly Toxic Hexavalent Chromium from Water

Acta Chimica Slovenica

Muhammad Kashif Samoon¹  Muhammad Taha²  Saima Qayyum Memon³  Khalid Muhammad Khan⁴  Zunaira Memon⁵  Waqas Jamil⁶ 

[1] Centre for Pure and Applied Geology, University of Sindh, Jamshoro;Department of Clinical Pharmacy, Institute for Research and Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 31441, Dammam, Saudi Arabia;Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro;H.E.J. Research Institute of Chemistry, International Center for Chemical and BiologicalSciences, University of Karachi, Karachi-75270, Pakistan;Institute of Advance Research Studies in Chemical Sciences, University of Sindh Jamshoro,Hyderabad, 76080, Pakistan;Institute of Advance Research Studies in Chemical Sciences, University of Sindh, Jamshoro, Pakistan;

关键词: amberlite xad-2;    environmental friendly;    toxicity;    chromium vi;    isatin;   

DOI  :  10.17344/acsi.2019.5412

来源: DOAJ

【 摘 要 】

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 fit to isotherm data than Langmuir model. The evaluation of kinetic data indicated pseudo-first-order kinetics followed by sorption process. Thermodynamic 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.

【 授权许可】

Unknown