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Elimination of Heavy Metals from Aqueous Solutions using Zeolite LTA Synthesized from Sudanese Clay

Author Affiliations

  • 1Department of Chemistry, Faculty of Science and Technology, Al Neelain University, Khartoum 11121,SUDAN

Res.J.chem.sci., Volume 3, Issue (5), Pages 93-98, May,18 (2013)

Abstract

The synthesis of zeolite LTA from Sudanese clay has been studied by hydrothermal treatment with various sodium hydroxide concentrations. The process for synthesis have been optimized to produce zeolite LTA at economical manner. Also, the chemical composition of clay and synthesized zeolite were investigated and they were analyzed using the X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and X-ray Flourence (XRF). It was found that, the Zeolite LTA was successfully synthesized under controlled conditions (750o C/1h) for the clay calcination, 100oC/2h for the reaction time, temperature and 5 M NaOH for the alkali concentration. The removal capacity for Pb2+ was 99.99 % and for Zn2+ was 95.68.

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