MWNTs in Sodium Alginate Gel Beads: Preparation and Adsorption towards Methylene Blue
Using sodium alginate (SA) and multi-walled carbon nanotubes (MWNTs) as raw materials, SA/ MWNTs composite gel beads were prepared by sol-gel method. The adsorption of the gel beads towards methylene blue (MB) was studied. Experimental results show that the adsorption ratio towards methylene blue can reach 83. 46% when the mass fraction of SA is 2% and the content of MWNTs in the gel beads is 0.15% after 120k.