TY - JOUR
T1 - Magnetically driven Bi2O3/BiOCl-based hybrid microrobots for photocatalytic water remediation
AU - Mushtaq, Fajer
AU - Guerrero, Miguel
AU - Sakar, Mahmut Selman
AU - Hoop, Marcus
AU - Lindo, André M.
AU - Sort, Jordi
AU - Chen, Xiangzhong
AU - Nelson, Bradley J.
AU - Pellicer, Eva
AU - Pané, Salvador
PY - 2015/9/29
Y1 - 2015/9/29
N2 - © The Royal Society of Chemistry. 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.
AB - © The Royal Society of Chemistry. 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.
U2 - 10.1039/c5ta05825b
DO - 10.1039/c5ta05825b
M3 - Article
SN - 2050-7488
VL - 3
SP - 23670
EP - 23676
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
ER -