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Removal of Cr(VI) Ions from Aqueous Solutions Using Poly 3-Methyl Thiophene Conducting Electroactive Polymers

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Abstract

This paper deals with a new application of poly 3-methyl thiophene synthesized chemically onto sawdust (termed as P3MTh/SD) as an effective adsorbent for removal of Cr(VI) ions from aqueous solutions using column system. Chemical synthesis of poly 3-methyl thiophene was performed by addition of ferric chloride (in chloroform) as oxidant to sawdust which had previously been soaked in monomer solution. All the sorption experiments were conducted using dynamic or column system at room temperature. The effect of important parameters such as pH and initial concentration on uptake of Cr(VI) was investigated. In order to find out the possibility of the regeneration and reuse of the exhausted adsorbent, desorption studies were also performed. The currently introduced adsorbent was found to be an efficient adsorbent for removal of highly toxic and hazardous Cr(VI) ions from aqueous solutions. As our breakthrough analysis has indicated, each gram of P3MTh/SD is able to remove more than 95% of Cr(VI)ions from 300 mL of Cr(VI) polluted solution with the initial concentration of 25 mg L−1 in column system. Sorption/desorption of Cr(VI) ions was found to be a highly pH dependent processes.

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Acknowledgment

The authors would like to thank and appreciate of postgraduate studies of Guilan University for its financial support for performing this research.

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Authors and Affiliations

  1. Department of Chemistry, University of Guilan, P.O. Box 41335-1914, Rasht, Iran

    Reza Ansari & Ali Fallah Delavar

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  1. Reza Ansari
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  2. Ali Fallah Delavar
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Correspondence to Reza Ansari.

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Ansari, R., Fallah Delavar, A. Removal of Cr(VI) Ions from Aqueous Solutions Using Poly 3-Methyl Thiophene Conducting Electroactive Polymers. J Polym Environ 18, 202–207 (2010). https://doi.org/10.1007/s10924-010-0199-7

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