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Volume 8, Issue 2 (Suppl) Chem Sci J 2017
ISSN: 2150-3494 CSJ, an open access journal Euro Chemistry 2017
May 11-13, 2017
May 11-13, 2017 Barcelona, Spain
4th European Chemistry Congress
Highly porous bio-based nanofibrous aerogels for removing cationic dyes from aqueous solutions
Sara Mousavi1,2, Fabian Deuber1, Farhad Shahraki2, Majid Aliabadi3 and Christian Adlhart1
1ZHAW Life Sciences and Facility Management, Switzerland
2Department of chemical engineering, university of Sistan & Baluchestan, Iran
3Department of chemical engineering, Azad university of Birjand, Iran
The use of synthetic dyes in different industries such as paper, textile, paint, printing, and plastics is inevitable. Environmental
concerns due to their UV and temperature stability together with their inhibiting effects on photosynthetic activities ask for
improved dye removing processes. Dye adsorption is a promising method in dye removing process, as it is cost efficient, easy and
flexible without any new toxic by-products. Difficulties such as separating the adsorbent after the removal process together with
their low efficiency were overcome by the development of new adsorbents based on electrospun nanofiber membranes. However,
besides all the outstanding properties of electrospun nanofiber membranes such as their huge specific surface area tailored surface
functionality and fiber uniformity, they are still facing challenges such as low mechanical stability and unfavorable mass transport
properties. To overcome these problems, a robust 3D sponge like aerogel with high porosity, mechanical stability, and flexibility as
well as low density was developed using pullulan: nanofibers are electrospun from the natural and edible polysaccharide pullulan
followed by cutting in dioxane, proceeding with a freeze casting process and finally thermally crosslinked [1]. The pullulan based
super elastic and environmentally friendly aerogel is used as a highly efficient adsorbent to remove cationic dyes from aqueous
solutions. Dye adsorption is pH dependent and recycling of the aerogel adsorbent is demonstrated.
Biography
Sara Mousavi is from Zhaw, Switzerland
Sara Mousavi et al., Chem Sci J 2017, 8:2(Suppl)