4.6 Article

Mussel-inspired synthesis of polydopamine-functionalized calcium carbonate as reusable adsorbents for heavy metal ions

Journal

RSC ADVANCES
Volume 4, Issue 88, Pages 47848-47852

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra08193e

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Funding

  1. National Natural Science Foundation of China [21405024]
  2. Modern Agro-industry Technology Research System [CARS-47]
  3. Fund of State Key Lab of Analytical Chemistry for Life Science [SKLACLS1309]
  4. Fund of Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety [GDPKLAPPS1406]
  5. Fund of Guangdong Ocean University [E13393]
  6. Special Project on the Integration of Industry and Education and Research of Guangdong Province [2009B090300135]

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A new high-efficiency adsorbent (PDA-CaCO3) is fabricated via simple thermal calcination of ostracean shells and chemicalmodification with dopamine. The adsorption capacity for Pb(II) and Cd(II) was 336.32 and 175.48 mg g(-1), respectively. Importantly, it can be easily regenerated by low-cost reagents, and exhibited a high adsorption capacity after multiple adsorption-desorption cycles.

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