Self-Propelled Activated Carbon Micromotors for "on-the-Fly" Capture of Nitroaromatic Explosives

Cagatay M. Oral, Martina Ussia, Martin Pumera

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Usage of nitroaromatic compounds (NACs) for industrial or military purposes leads to serious concern because of their detrimental effects on human health when they leak to groundwater. Among different ways to remove NACs from water sources, adsorption has been considered as an environmentally safe method. However, diffusion-limited characteristics of the adsorption method increase the time required to remove NACs. In this study, we utilize biocompatible and low-cost activated carbon (AC) as self-propelled micromotors for "on-the-fly"capture of 2,4,6-trinitrophenol (picric acid). The micromotors effectively capture picric acid with their intrinsic movement capabilities and demonstrate effective decrease in the adsorption time. The results highlight that even a well-known adsorbent material, AC, can be further improved via "on-the-fly"adsorption capability of micromotors.

Original languageEnglish
Pages (from-to)18040-18045
Number of pages6
JournalJournal of Physical Chemistry C
Issue number32
Publication statusPublished - 2021 Aug 19

Bibliographical note

Funding Information:
M. P. was supported by the Ministry of Education, Youth and Sports (Czech Republic) grant LL2002 under the ERC CZ program. CzechNanoLab project LM2018110 funded by MEYS CR is gratefully acknowledged for the financial support of the measurements/sample fabrication at CEITEC Nano Research Infrastructure. C. M. O. acknowledges the grant CEITEC-K-21-7049, which was financed from Quality Internal Grants of BUT Reg. No CZ.02.2.69/0.0/0.0/19_073/0016948.

Publisher Copyright:

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films


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