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Materials 2014, 7(2), 673-726; doi:10.3390/ma7020673

Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review

1,†,* , 2,†,* and 2,†,*
1
Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad 68137-17133, Iran
2
Department of Chemical Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 25 November 2013 / Revised: 6 January 2014 / Accepted: 10 January 2014 / Published: 27 January 2014

Abstract

Over the past decades, organic-inorganic hybrid polymers have been applied in different fields, including the adsorption of pollutants from wastewater and solid-state separations. In this review, firstly, these compounds are classified. These compounds are prepared by sol-gel method, self-assembly process (mesopores), assembling of nanobuilding blocks (e.g., layered or core-shell compounds) and as interpenetrating networks and hierarchically structures. Lastly, the adsorption characteristics of heavy metals of these materials, including different kinds of functional groups, selectivity of them for heavy metals, effect of pH and synthesis conditions on adsorption capacity, are studied.
Keywords: organic-inorganic hybrid polymer; heavy metal ion; wastewater treatment; adsorption; sol-gel method; self-assembly process; nanobuilding blocks; interpenetrating networks organic-inorganic hybrid polymer; heavy metal ion; wastewater treatment; adsorption; sol-gel method; self-assembly process; nanobuilding blocks; interpenetrating networks
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Samiey, B.; Cheng, C.-H.; Wu, J. Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review. Materials 2014, 7, 673-726.

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