Journal
REACTIVE & FUNCTIONAL POLYMERS
Volume 126, Issue -, Pages 20-26Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.reactfunctpolym.2018.03.004
Keywords
beta-cyclodextrin; Viologens; Anionic dyes; Selective adsorption
Ask authors/readers for more resources
The viologen-based beta-cyclodextrin polymer (V-CDP) was successfully prepared via a Menshutkin reaction for the first time, and its organic dyes uptake capacities were investigated. The synthesized polymer showed BET surface area of 22 m(2) g(-1) and exhibited highly charge-selective adsorption of anionic dyes, i.e. congo red and methyl orange. Remarkably, the polymer could efficiently absorb anionic dyes from binary cationic-anionic dye mixtures in a 1:1 mass ratio. The adsorption process of the two anionic dyes on the polymer both followed the pseudo-second-order rate equation and the Langmuir adsorption model. According to the Langmuir isotherm, the maximum adsorption capacity of V-CDP for congo red and methyl orange was calculated to be 323 mg g(-1) and 370 mg g(-1), respectively. Additionally, the polymer can be easily regenerated and reused at least 5 times with no loss of adsorption efficiency, demonstrating its potential application in dye removal.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available