Synthesis of a polysilazane layer on silica gel by chemical surface coating

Nathalie R. E. N. Impens; Karl Possemiers; Etienne F. Vansant

doi:10.1039/ft9969204285

Synthesis of a polysilazane layer on silica gel by chemical surface coating

Journal of the Chemical Society Faraday Transactions ◽

10.1039/ft9969204285 ◽

1996 ◽

Vol 92 (21) ◽

pp. 4285 ◽

Cited By ~ 3

Author(s):

Nathalie R. E. N. Impens ◽

Karl Possemiers ◽

Etienne F. Vansant

Keyword(s):

Silica Gel ◽

Surface Coating ◽

Chemical Surface

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Synthesis of a Polysilazane Coating on a Silica Gel via Chemical Surface Coating Comparing Liquid- and Gas-Phase Chlorosilylations

Surfactant Science - Surfaces of Nanoparticles and Porous Materials ◽

10.1201/9780824746681.pt1 ◽

1999 ◽

Author(s):

Nathalie Ztnpens ◽

Etienne Vansant

Keyword(s):

Gas Phase ◽

Silica Gel ◽

Surface Coating ◽

Chemical Surface

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Thorough characterization of a silicon oxynitride coated silica gel synthesizedviachemical surface coating

Journal of Materials Chemistry ◽

10.1039/a608408g ◽

1997 ◽

Vol 7 (8) ◽

pp. 1467-1472 ◽

Cited By ~ 4

Author(s):

Nathalie R. E. N. Impens ◽

Koen Schrijnemakers ◽

Etienne F. Vansant ◽

Piet Grobet ◽

Joseph Riga ◽

...

Keyword(s):

Silica Gel ◽

Surface Coating ◽

Silicon Oxynitride

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Enhancement of nonwoven cellulose triacetate forward-osmosis membranes by surface coating modification

International Journal of Engineering & Technology ◽

10.14419/ijet.v6i4.7634 ◽

2017 ◽

Vol 6 (4) ◽

pp. 124

Author(s):

Hanaa Aly ◽

Hanaa Gadallah ◽

Sahar Ali ◽

Rania Sabry

Keyword(s):

Surface Coating ◽

High Performance ◽

Forward Osmosis ◽

Cellulose Triacetate ◽

Structure Characterization ◽

Dense Layer ◽

Coating Materials ◽

Chemical Surface ◽

Membrane Performance ◽

High Efficient

Forward osmosis (FO) is considered as one of the emerging techniques in membrane technology. The enhancement of FO performance is governed by two major factors: the first one is development of high-performance draw solutions and the second is utilizing of high efficient FO membranes. The aim of this work is to investigate chemical surface coating modification of commercial nonwoven forward osmosis membrane with new hydrophilic coating materials namely, o-phenylene di-amine and benzoyl chloride. The effect of coating addition at different concentrations was studied. The membrane morphology and chemical structure characterization of modified membranes proved the formation of dense layer and higher membrane porosity. Finally, it was demonstrated that increasing of coating material concentration gradually increases porosity and membrane performance till 0.75 g/l. By further increasing of coating materials, the porosity and membrane performance tend to decrease.

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