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http://hdl.handle.net/2445/123480
Title: | Reusable and long-lasting active microcleaners for heterogeneous water remediation |
Author: | Parmar, Jemish Vilela, Diana Pellicer Vilà, Eva M. Esqué de los Ojos, Daniel Sort, Jordi Sánchez Ordóñez, Samuel |
Keywords: | Depuració d'aigües residuals Reutilització de l'aigua Espectroscòpia de raigs X Purification of sewage Water reuse X-ray spectroscopy |
Issue Date: | 20-Jun-2016 |
Publisher: | Wiley |
Abstract: | Self-powered micromachines are promising tools for future environmental remediation technology. Waste-water treatment and water reuse is an essential part of environmental sustainability. Herein, we present reusable Fe/Pt multi-functional active microcleaners that are capable of degrading organic pollutants (malachite green and 4-nitrophenol) by generated hydroxyl radicals via a Fenton-like reaction. Various different properties of microcleaners, such as the effect of their size, short-term storage, long-term storage, reusability, continuous swimming capability, surface composition, and mechanical properties, are studied. It is found that these microcleaners can continuously swim for more than 24 hours and can be stored more than 5 weeks during multiple cleaning cycles. The produced microcleaners can also be reused, which reduces the cost of the process. During the reuse cycles the outer iron surface of the Fe/Pt microcleaners generates the in-situ, heterogeneous Fenton catalyst and releases a low concentration of iron into the treated water, while the mechanical properties also appear to be improved due to both its surface composition and structural changes. The microcleaners are characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), nanoindentation, and finite-element modeling (FEM). |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1002/adfm.201600381 |
It is part of: | Advanced Functional Materials, 2016, vol. 26, num. 23, p. 4152-4161 |
URI: | http://hdl.handle.net/2445/123480 |
Related resource: | http://dx.doi.org/10.1002/adfm.201600381 |
Appears in Collections: | Publicacions de projectes de recerca finançats per la UE Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC)) |
Files in This Item:
File | Description | Size | Format | |
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L21_2016_Advanced Functional Materials_26_4152_OA.pdf | 6.08 MB | Adobe PDF | View/Open |
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