title: Fe(0) Nanomotors in Ton Quantities (10(20) Units) for Environmental Remediation.
abstract: Despite demonstrating potential for environmental remediation and biomedical applications, the practical environmental applications of autonomous self-propelled micro-/nanorobots have been limited by the inability to fabricate these devices in large (kilograms/tons) quantities. In view of the demand for large-scale environmental remediation by micro-/nanomotors, which are easily synthesized and powered by nontoxic fuel, we have developed bubble-propelled Fe(0) Janus nanomotors by a facile thermally induced solid-state procedure and investigated their potential as decontamination agents of pollutants. These Fe(0) Janus nanomotors, stabilized by an ultrathin iron oxide shell, were fuelled by their decomposition in citric acid, leading to the asymmetric bubble propulsion. The degradation of azo-dyes was dramatically increased in the presence of moving self-propelled Fe(0) nanomotors, which acted as reducing agents. Such enhanced pollutant decomposition triggered by biocompatible Fe(0) (nanoscale zero-valent iron motors), which can be handled in the air and fabricated in ton quantities for low cost, will revolutionize the way that environmental remediation is carried out.
authors: Division of Chemistry and Biological Chemistry, School of Physical and Chemical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
authors: Wei Zhe
authors: WZ
authors: Teo
authors: Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46, Olomouc, Czech Republic.
authors: Radek
authors: R
authors: Zboril
authors: Regional Centre of Advanced Technologies and Materials, Departments of Physical Chemistry and Experimental Physics, Faculty of Science, Palacký University, 17. listopadu 1192/12, 771 46, Olomouc, Czech Republic.
authors: Ivo
authors: I
authors: Medrik
authors: Division of Chemistry and Biological Chemistry, School of Physical and Chemical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore. pumera.research@gmail.com.
authors: Martin
authors: M
authors: Pumera
keywords: azo-dye degradation; citric acid; environmental remediation; iron; nanomotors