TY  - JOUR
AU  - Gane, Patrick
AU  - Ridgway, C. J.
AU  - Kijevčanin, Mirjana
AU  - Stijepović, M.
AU  - Uskoković, Petar
AU  - Barać, Nemanja
AU  - Dimić-Mišić, Katarina
AU  - Imani, M.
AU  - Janaćković, Đorđe
AU  - Barcelo, E.
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4913
AB  - A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. The formation of a continuous coating layer virtually excludes any fluid transport into the coating other than by planar diffusion for gases or capillarity for liquids. This study considers the additional potential advantage of creating a pixelated/patterned coating, applied using a pin coater to form printed dots onto a highly permeable cellulose fibrous paper-like substrate. The coating-fine particulate calcium carbonate combined with micro-nanofibrillated cellulose as binder and humectant-reacts on exposure to NO2 gas to form calcium nitrate. Experimental results show an effective doubling of nitrate-forming efficiency using pixelated coating compared with a reference continuous layer coating. To establish an understanding of the comparative mechanisms of gas-coating contact, computational fluid dynamic modelling is used to generate surface pressure profiles combined with a pore network model of the coating to estimate theoretical fluid permeability and gas diffusion coefficients. Although pressure-driven permeation was calculated to be approximately two orders of magnitude less than the diffusive flow, it is concluded that patterned aerofoil pressure differential effects can reduce the impact of surface stagnant layering and so aid fluid transfer, boosting the diffusive transport, which in turn delivers greater contact efficiency based on the increased accessibility to the active coating.
T2  - Transport in Porous Media
T1  - Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration
EP  - 576
IS  - 3
SP  - 539
VL  - 138
DO  - 10.1007/s11242-021-01632-z
ER  - 

@article{
author = "Gane, Patrick and Ridgway, C. J. and Kijevčanin, Mirjana and Stijepović, M. and Uskoković, Petar and Barać, Nemanja and Dimić-Mišić, Katarina and Imani, M. and Janaćković, Đorđe and Barcelo, E.",
year = "2021",
abstract = "A novel surface-flow filter has been designed to take advantage of a combination of both diffusion and lateral flow permeation, since active coatings, even if porous, tend to be far less permeable than through-flow constructs. The formation of a continuous coating layer virtually excludes any fluid transport into the coating other than by planar diffusion for gases or capillarity for liquids. This study considers the additional potential advantage of creating a pixelated/patterned coating, applied using a pin coater to form printed dots onto a highly permeable cellulose fibrous paper-like substrate. The coating-fine particulate calcium carbonate combined with micro-nanofibrillated cellulose as binder and humectant-reacts on exposure to NO2 gas to form calcium nitrate. Experimental results show an effective doubling of nitrate-forming efficiency using pixelated coating compared with a reference continuous layer coating. To establish an understanding of the comparative mechanisms of gas-coating contact, computational fluid dynamic modelling is used to generate surface pressure profiles combined with a pore network model of the coating to estimate theoretical fluid permeability and gas diffusion coefficients. Although pressure-driven permeation was calculated to be approximately two orders of magnitude less than the diffusive flow, it is concluded that patterned aerofoil pressure differential effects can reduce the impact of surface stagnant layering and so aid fluid transfer, boosting the diffusive transport, which in turn delivers greater contact efficiency based on the increased accessibility to the active coating.",
journal = "Transport in Porous Media",
title = "Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration",
pages = "576-539",
number = "3",
volume = "138",
doi = "10.1007/s11242-021-01632-z"
}

Gane, P., Ridgway, C. J., Kijevčanin, M., Stijepović, M., Uskoković, P., Barać, N., Dimić-Mišić, K., Imani, M., Janaćković, Đ.,& Barcelo, E.. (2021). Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration. in Transport in Porous Media, 138(3), 539-576.
https://doi.org/10.1007/s11242-021-01632-z

Gane P, Ridgway CJ, Kijevčanin M, Stijepović M, Uskoković P, Barać N, Dimić-Mišić K, Imani M, Janaćković Đ, Barcelo E. Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration. in Transport in Porous Media. 2021;138(3):539-576.
doi:10.1007/s11242-021-01632-z .

Gane, Patrick, Ridgway, C. J., Kijevčanin, Mirjana, Stijepović, M., Uskoković, Petar, Barać, Nemanja, Dimić-Mišić, Katarina, Imani, M., Janaćković, Đorđe, Barcelo, E., "Surface Patterning Increases Fluid Sorption Efficiency in Porous Reactive Coatings: A Model for Optimised Surface-Flow Filtration" in Transport in Porous Media, 138, no. 3 (2021):539-576,
https://doi.org/10.1007/s11242-021-01632-z . .