Jul 17, 2012 |
Novel, low-cost nanocomposite adsorbent for dye removal from wastewater
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(Nanowerk News) Researchers at Chemistry Department of Islamic Azad University, Yazd Branch, managed to prepare dye-adsorbing nanocomposites based on wood waste and residue with potential use in wastewater treatment of the effluents from textile and dye industries ("Nano composite a potential low cost adsorbent for removal of cyanine acid").
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During recent years, there has been a surge of interest in the synthesis of new and environmentally friendly adsorbents based on low-cost and natural materials such as hulls and husk of agricultural crops, wood residues, pebbles, etc.
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“Our research works have been mainly focused on developing inexpensive and efficient nano adsorbents. In this regard, we concluded sawdust as an excellent basis and applied the chemical co-precipitation method to synthesize CuFe2O4/sawdust nanocomposites (with copper and iron oxides and nano ferrite spinel the as raw materials)," Dr. Saeedeh Hashemian, member of the academic board of Islamic Azad University, Yazd Branch, explained.
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"Subsequently, we evaluated the efficiency improvement due to the incorporation of sawdust in the prepared nanocomposite for adsorptive removal of cyanine acid blue (CAB) from aqueous solutions.”
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“The obtained results reveal that nano ferrite spinel particles have been deposited on the sawdust structures favorably and the yielded nanocomposite possesses a higher dye-removal efficiency compared to that of each of its components (i.e. sawdust and ferrite spinel) applied singly,” she said, summarizing her comments regarding their experimental results.
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