Marine Sponge and Copper-Rich Waste Form Useful Composite

  • Author: (Image: M. Bertau, H. Ehrlich, et al., CC BY 4.0)
  • Published: 22 June 2021
  • Copyright: Wiley-VCH GmbH
thumbnail image: Marine Sponge and Copper-Rich Waste Form Useful Composite

Inorganic–organic hybrid materials that resemble the unique properties of biomaterials are interesting research targets in materials chemistry. Marine (or bath) sponges, for example, are a renewable source of the collagen-based biomaterial spongin, which naturally has a porous three-dimensional structure. Spongin is stable up to 300 °C and can, e.g., be used as a template or carbonized to produce porous materials.

Martin Bertau, TU Bergakademie Freiberg, Germany, Hermann Ehrlich, TU Bergakademie Freiberg, Adam Mickiewicz University, Poznań, Poland, and ICUBE-University of Toronto, Mississauga, Canada, and colleagues have investigated whether spongin can also be used as a biomaterial for the disposal of toxic, metal-containing industrial waste. The team first created a solution that simulates the highly toxic copper-containing waste generated in the production of printed circuit boards. Then, they inserted 3D spongin scaffolds into this solution.

This leads to a reaction between the organic spongin template and the inorganic ions, and a new composite material is formed (pictured). It contains spongin as the organic component and crystalline atacamite (Cu2Cl(OH)3) as the main inorganic phase. The composite material could be used, e.g., in the development of sensors, catalysts, and antibacterial filter systems. For example, the team created an enzyme-free sensor for the direct sensing of glucose using the composite as a catalyst and used a thermally pre-treated spongin–atacamite composite as a catalyst for the production of formaldehyde. In addition, the spongin can be regenerated and reused after removal of the mineral phase with an acidic solution.



Article Views: 1008

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permisson guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH