Autonomously propelled microscavengers for precious metal recovery

We report biogenic micromotor design consisting of porous chalky elongated tubes (∼60 μm length) coated with Fe-Pt for dual functionality i.e. metallic gold formation and rapid isolation. These autonomously propelled scavengers once introduced in the reaction environment, showed rapid bubble-propuls...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2017-07, Vol.53 (58), p.8140-8143
Main Authors: Srivastava, Sarvesh Kumar, Medina-Sánchez, Mariana, Schmidt, Oliver G
Format: Article
Language:English
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Summary:We report biogenic micromotor design consisting of porous chalky elongated tubes (∼60 μm length) coated with Fe-Pt for dual functionality i.e. metallic gold formation and rapid isolation. These autonomously propelled scavengers once introduced in the reaction environment, showed rapid bubble-propulsion followed by high-purity separation of the visually-distinguishable gold metal particles (yellow in colour) from the reaction mixture. The concept presented here has excellent potential towards environmentally sustainable metal recovery, micron-level metal/mineral particulate extraction, electronic waste treatment and similar redox product separation among others.
ISSN:1359-7345
1364-548X
DOI:10.1039/c7cc02605f