AI Article Synopsis
- Two types of nano-hydroxyapatite were created using Clam and Magellan shells through a wet chemical method.
- The resulting composite hydrogels, made from carboxymethyl cellulose, acrylamide, and nano-hydroxyapatite, were tested for their ability to absorb Acid Blue 113 dye from water.
- The study found that higher levels of nano-hydroxyapatite improved swelling and diffusion characteristics of the hydrogels, with Magellan shell-based hydrogels demonstrating promising efficiency for water purification applications.
Article Abstract
Herein, two kinds of nano-hydroxyapatite were synthesized from Clam and Magellan shell by wet chemical precipitation method. Mainly, carboxymethyl cellulose/acrylamide/nano-hydroxyapatite composite hydrogels were developed a free-radical polymerization process and investigated as a sorbent for Acid Blue 113 (AB) from aqueous AB solution. The swelled and kinetic behaviours of hydrogels were investigated using a gravimetric method. The swelling properties of the CMC-AM-hydrogels were influenced by the calcium electrolytes (Ca) content in nano-hydroxyapatites. The diffusion coefficient value increased with the increase of nano-hydroxyapatite content in the CMC-AM/nHA-CS (0.22353-0.27681 cm s) and CMC-AM/nHA-MS (0.22377-0.29737 cm s) hydrogels. The mechanism of water diffusion was found to be anomalous transport. The CMC-AM/nHA-MS hydrogels showed high AB absorption efficiency and adsorption capacities. These results explained that the nano-hydroxyapatites of Magellan shells based hydrogels are attractive nanocomposite hydrogels for the adsorption of dye in the water purification applications.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5961604 | PMC |
| http://dx.doi.org/10.1039/c8ra01887a | DOI Listing |
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