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Recycling 2019 & Material Science 2019
July 22-23, 2019
Volume 3 Journal of Environmental Geology
Material Science and Nanotechnology
Global Recycling Summit
July 22-23, 2019 | Rome, Italy
6th International Conference on
&
Thin-film membranes made from rice straw nanofibers isolated from high-lignin
neutral sulfite pulp and bleached sulfite pulp
Mohammad Hassan1, Ragab E Abouzeid1, Shaimaa M Fadel1, Enas Hassan1, Wafaa S Abou Elseoud1 and Linn
Berglund2
1National Research Centre, Egypt
2Luleå University of Technology, Sweden
There is an increasing interest during last years in isolating cellulose nanofibers from unbleached cellulose pulps due to
economic, environmental, and functional reasons. In the current work, cellulose nanofibers isolated from unbleached neutral
sulfite pulp (RSNF) were compared to those isolated from bleached neutral sulfite pulp in making thin-film ultra-filtration
membranes by simple vacuum filtration on hardened filter paper. The prepared membranes were characterized regarding their
microscopic structure, hydrophilicity, pure water flux, fouling, and removing lime nanoparticles and oil from oil-in-water
emulsion. Using cellulose nanofibers isolated from unbleached pulp resulted in easier formation of thin-filmmembrane (shorter
filtration time) and higher water flux than in case of using nanofibers isolated from bleached fibers, without sacrificing its ability
to remove the lime nanoparticles or oil from its emulsion.
Biography
Mohammad Hassan has expertise and interest in nanocelluloses and their isolation technologies,bionanocomposites, and their applications
is areas related to membranes for water treatment, tissue engineering, drug release systems, paper making, flexible electronics, packaging,
and conservation of heritage.
Figure 1: SEM image of membrane surface made from unbleached RSNF. Figure 2: Visible absorption spectra of blank lime nanoparticles suspension and
filtrate after passing through the membrane
MohammadHassanetal.,JEnvironGeol. |Volume3
ISSN:2591-7641