期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 3, 期 47, 页码 23670-23676出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta05825b
关键词
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资金
- European Research Council Starting Grant Magnetoelectric Chemonanorobotics for Chemical and Biomedical Applications (ELECTROCHEMBOTS)
- ERC [336456]
- Swiss National Science Foundation [IZK0Z2_150931]
- COFUND Programme of the Marie Curie Actions of the 7th R&D Framework Programme of the European Union for the 'Beatriu de Pinos' contract [2013 BP-B 00077]
- Generalitat de Catalunya [2014-SGR-1015]
- MICINN [MAT2014-57960-C3-1-R]
- MINECO [RYC-2012-10839]
- ICREA Funding Source: Custom
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.
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