Hydrophobic and Oleophilic Filter Paper for Oil/Water Separation

Sunisa Jindasuwan; Sitthisuntorn Supothina

doi:10.4028/www.scientific.net/KEM.798.385

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 798Hydrophobic and Oleophilic Filter Paper for...

Hydrophobic and Oleophilic Filter Paper for Oil/Water Separation

Abstract:

The separation of oil from water is significance for environmental de-pollution application. To obtain selectivity of liquid, filter papers were coated to bear highly hydrophobic and oleophilic functionality that can allow only oils to pass through them. The coating solutions were prepared by mixing poly(methylhydro siloxane, PMHS) and fumed silica at various proportions. To determine an optimum coating condition, properties of the treated filter papers were investigated by measuring water contact angle and surface free energy, examining surface morphology and testing for selective removal of diesel oil from water. The optimum coating solution was at the PMHS:fumed silica weight ratio of 1.25:1.00. The treated filter paper exhibited high hydrophobicity with water contact angle of 142.80 ± 0.36 degrees and surface free energy of 0.78 mJ/m². In addition, it exhibited high selective removal of diesel oil from water with oil absorption capacity of 2.3 g/g.

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Periodical:

Key Engineering Materials (Volume 798)

Pages:

385-390

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.798.385

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Online since:

April 2019

Authors:

Sunisa Jindasuwan*, Sitthisuntorn Supothina

Keywords:

Filter Paper, Hydrophobic, Oil/Water Separation, Oleophilic

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