Preparation and Characterization of CMC/HA-NPs/pulp Nanocomposites for the removal of heavy Metal Ions

摘要

The paper sheets nanocomposite of cellulose pulp/ carboxymethyl cellulose/hydroxyapatite nanoparticles (HA-NP) were prepared with different ratios of HA-NPs. Two types of cellulose pulps were used, the recycled wastepaper pulp (RWP) and the bleached wood pulp (BWP) to prepare RWP/CMC/HA-NPs and BWP/CMC/HA-NPs, respectively. The characterizations of HA-NPs and the paper sheets nanocomposite as well as their affect in the removal of Fe2+, Cu+2 and Cd2+ ions were studied. It was found that the swelling % decreased by increasing the HA-NPs content in the paper sheets. Also, the mechanical properties of the paper sheets nanocomposite obtained from BWP were higher than that obtained from RWP. In addition, the ratio of removal heavy metal ions was increased by increasing the ratio of HA-NPs in the paper sheets nanocomposite.