Issue 58, 2017

Autonomously propelled microscavengers for precious metal recovery

Abstract

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.

Graphical abstract: Autonomously propelled microscavengers for precious metal recovery

Supplementary files

Article information

Article type
Communication
Submitted
05 Apr 2017
Accepted
21 Jun 2017
First published
26 Jun 2017

Chem. Commun., 2017,53, 8140-8143

Autonomously propelled microscavengers for precious metal recovery

S. K. Srivastava, M. Medina-Sánchez and O. G. Schmidt, Chem. Commun., 2017, 53, 8140 DOI: 10.1039/C7CC02605F

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