Percolation diffusion into self-assembled mesoporous silica microfibres

Canning, J; Huyang, G; Ma, M; Beavis, A; Bishop, D; Cook, K; McDonagh, A; Shi, D; Peng, GD; Crossley, MJ

Percolation diffusion into self-assembled mesoporous silica microfibres

Canning, J

Huyang, G Ma, M Beavis, A

Bishop, D

Cook, K

McDonagh, A

Shi, D Peng, GD Crossley, MJ

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Publication Type:: Journal Article
Citation:: Nanomaterials, 2014, 4 (1), pp. 157 - 174
Issue Date:: 2014-01-01

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Field	Value	Language
dc.contributor.author	Canning, J https://orcid.org/0000-0001-8281-7783	en_US
dc.contributor.author	Huyang, G	en_US
dc.contributor.author	Ma, M	en_US
dc.contributor.author	Beavis, A https://orcid.org/0000-0001-6259-7699	en_US
dc.contributor.author	Bishop, D https://orcid.org/0000-0002-6533-4410	en_US
dc.contributor.author	Cook, K https://orcid.org/0000-0001-6139-9586	en_US
dc.contributor.author	McDonagh, A https://orcid.org/0000-0002-9502-1175	en_US
dc.contributor.author	Shi, D	en_US
dc.contributor.author	Peng, GD	en_US
dc.contributor.author	Crossley, MJ	en_US
dc.date.available	2014-03-01	en_US
dc.date.issued	2014-01-01	en_US
dc.identifier.citation	Nanomaterials, 2014, 4 (1), pp. 157 - 174	en_US
dc.identifier.uri	http://hdl.handle.net/10453/36846
dc.description.abstract	© 2014 by the authors. Percolation diffusion into long (11.5 cm) self-assembled, ordered mesoporous microfibres is studied using optical transmission and laser ablation inductive coupled mass spectrometry (LA-ICP-MS). Optical transmission based diffusion studies reveal rapid penetration (<5 s, D > 80 μm2·s−1) of Rhodamine B with very little percolation of larger molecules such as zinc tetraphenylporphyrin (ZnTPP) observed under similar loading conditions. The failure of ZnTPP to enter the microfibre was confirmed, in higher resolution, using LA-ICP-MS. In the latter case, LA-ICP-MS was used to determine the diffusion of zinc acetate dihydrate, D~3 × 10−4 nm2·s−1. The large differences between the molecules are accounted for by proposing ordered solvent and structure assisted accelerated diffusion of the Rhodamine B based on its hydrophilicity relative to the zinc compounds. The broader implications and applications for filtration, molecular sieves and a range of devices and uses are described.	en_US
dc.relation.ispartof	Nanomaterials	en_US
dc.relation.isbasedon	10.3390/nano4010157	en_US
dc.title	Percolation diffusion into self-assembled mesoporous silica microfibres	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	4	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	1007 Nanotechnology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
pubs.organisational-group	/University of Technology Sydney/Strength - CFS - Centre for Forensic Science
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	4	en_US

Abstract:

© 2014 by the authors. Percolation diffusion into long (11.5 cm) self-assembled, ordered mesoporous microfibres is studied using optical transmission and laser ablation inductive coupled mass spectrometry (LA-ICP-MS). Optical transmission based diffusion studies reveal rapid penetration (<5 s, D > 80 μm2·s−1) of Rhodamine B with very little percolation of larger molecules such as zinc tetraphenylporphyrin (ZnTPP) observed under similar loading conditions. The failure of ZnTPP to enter the microfibre was confirmed, in higher resolution, using LA-ICP-MS. In the latter case, LA-ICP-MS was used to determine the diffusion of zinc acetate dihydrate, D~3 × 10−4 nm2·s−1. The large differences between the molecules are accounted for by proposing ordered solvent and structure assisted accelerated diffusion of the Rhodamine B based on its hydrophilicity relative to the zinc compounds. The broader implications and applications for filtration, molecular sieves and a range of devices and uses are described.

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http://hdl.handle.net/10453/36846