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Issue 47, 2015
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Magnetically driven Bi2O3/BiOCl-based hybrid microrobots for photocatalytic water remediation

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Abstract

In this work, we have developed 3D hybrid microstructures consisting of a short ferromagnetic CoNi segment for wireless magnetic control, coupled to a photocatalytic Bi2O3/BiOCl segment for water remediation under UV-visible light. These hybrid microstructures (pillars and helices) were fabricated using 3D photolithography and template-assisted electrodeposition, followed by in situ creation of a Bi2O3/BiOCl heterojunction after oxidation of Bi. This heterojunction is not only active under a wider solar spectrum but also ensures sufficient charge separation and hence low electron–hole recombination rate. As a result, these hybrid microstructures were able to degrade rhodamine B dye with a 90% efficiency in 6 hours. On application of magnetic fields we were able to precisely control the structures and collect them for reuse. Cytotoxicity tests were performed on our hybrid structures and a 95% cell viability was reported showing that our structures are biocompatible.

Graphical abstract: Magnetically driven Bi2O3/BiOCl-based hybrid microrobots for photocatalytic water remediation

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Publication details

The article was received on 28 Jul 2015, accepted on 28 Sep 2015 and first published on 29 Sep 2015


Article type: Paper
DOI: 10.1039/C5TA05825B
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Citation: J. Mater. Chem. A, 2015,3, 23670-23676
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    Magnetically driven Bi2O3/BiOCl-based hybrid microrobots for photocatalytic water remediation

    F. Mushtaq, M. Guerrero, M. S. Sakar, M. Hoop, A. M. Lindo, J. Sort, X. Chen, B. J. Nelson, E. Pellicer and S. Pané, J. Mater. Chem. A, 2015, 3, 23670
    DOI: 10.1039/C5TA05825B

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