Removal of Arsenic(III) from Water with Clay-Supported Zerovalent

Jul 7, 2013 - *E-mail: [email protected]. ... Stirring of contaminated water with zerovalent iron nanoparticles supported on montmorillonite K10 fo...
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Removal of Arsenic(III) from Water with Clay-Supported Zerovalent Iron Nanoparticles Synthesized with the Help of Tea Liquor Praveen K. Tandon,* Ritesh C. Shukla, and Santosh B. Singh Department of Chemistry, University of Allahabad, Allahabad-211002, India S Supporting Information *

ABSTRACT: Because traditional synthesis methods pose great hazards for the environment, there is a need to develop biomimetic processes for the treatment of industrial effluents and contaminated water in which the use of plant parts is an important alternative. Zerovalent iron nanoparticles having an average size of 59.08 ± 7.81 nm were prepared by mixing ferric nitrate with liquor of commercially available tea. Stirring of contaminated water with zerovalent iron nanoparticles supported on montmorillonite K10 for 30 min resulted in up to 99% removal of arsenic as As(III) from its solution at both high and low pH. It was also observed that, under similar conditions, montmorillonite K10 alone provided only