شماره ركورد كنفرانس :
5048
عنوان مقاله :
Uptake of cationic dye from aqueous solution by absorption onto granular semi-interpenetrating hydrogels
Author/Authors :
Abolfazl ،Barati Department of chemical engineering - Faculty of engineering - Arak University, Arak, Iran , Mojgan ،Zenedehdel Department of chemistry - Faculty of science - Arak University, Arak, Iran , Hanieh ،Alikhani Department of chemistry - Faculty of science - Arak University, Arak, Iran , Atefeh ،Hekmat Department of chemical engineering - Faculty of engineering - Arak University, Arak, Iran
كليدواژه :
sIPN , Hydrogel , Cationic dye , Absorption , Methylene blue
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
A new, semi-interpenetrating hydrogel was tested for its ability to remove cationic dye from aqueous solution. Granules
of network composed of poly (acrylamide-co-potasium acrylate) and poly (vinyl alcohol) had been utilized as a sorbent
for uptake methylene blue (MB). The effects of various experimental parameters (e.g. acrylamide concentration,
hydrolysis of acrylic acid, crosslinker concentration and concentration of linear polymer (PVA)) were investigated and
optimal experimental conditions were ascertained. A weighed quantity of dry sIPN hydrogel were immersed in 50 ppm
MB solution and kept at 37o C. The amount of MB adsorbed was measured spectrophotometrically (λ= 661.6 nm) in
periodically taken solution samples. The maximum dye absorption concentration for network was 95%. Interestingly, it
wasn’t observed any dye desorption of MB/polymer solutions. Then the composites can be used as good membranes for
removal of cationic dyes from aqueous solution while they won’t release harmful materials in water.
