Application of a Novel Surfactant-Modified Natural Nano-Zeolite for Removal of Heavy Metals from Drinking Water
Publish place: Advanced Journal of Chemistry-Section A، Vol: 3، Issue: 5
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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JR_AJCS-3-5_006
تاریخ نمایه سازی: 22 دی 1399
Abstract:
This work, the application of a surfactant-modified natural nano-clinoptilolite for the removal of several two valances heavy metal cations (i.e., Cu2+, Pb2+, Ni2+, Cd2+, Fe2+ and Zn2+) from aqueous media was discussed. Triton X-100 was used as modifier and to achieve maximum efficiency of adsorption; variables such as the concentration of surfactant, contact time, the working temperature and pH of sample solution were optimized. The results revealed that, the maximum adsorption was achieved at a solution with the pH of 6, containing 2 mL of triton X-100 and 2 g/L of clinoptilolite at 45 °C. The obtained selectivity series for the adsorption of cations were Pb2+>Cu2+>Cd2+>Ni2+ >Zn2+>Fe2+. The maximum adsorption capacity of the modified zeolite for Pb2+, Cu2+, Cd2+, Ni2+, Zn2+ and Fe2+ was 91.34, 85.71, 78.27, 76.18, 67.41 and 63.45 mg/g, respectively. The adsorption data were acceptably fitted to the both Freundlich and Langmuir isotherms.
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Authors
Mohammad Reza Mirbaloochzehi
Department of Chemistry, Faculty of Scienc, University of Sistan and Balouchestan, Zahedan, Iran
Alireza Rezvani
Department of Chemistry, Faculty of Scienc, University of Sistan and Balouchestan, Zahedan, Iran
Abdolreza Samimi
Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Balouchestan, Zahedan, Iran
Masoud Shayesteh
Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Balouchestan, Zahedan, Iran
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