Phase change material for efficient removal of crystal violet dye.
Hazardous dye removal and recovery from wastewater requires efficient capturing material. We report a phase change material (PCM) with phase change temperature of 16 degrees C giving up to 98% removal of crystal violet in few minutes. The PCM was found to collect 54 times of its weight soluble dye. The dye adsorption kinetics obeys a second order pseudo rate. Upon cooling the PCM to below 16 degrees C it gels and enabled solid removal of the captured dye.
Haik
Yousef
Y
Center of Research Excellence in Nanobiosciences, University of North Carolina at Greensboro, 321 McIver, Greensboro NC 27402, United States. y_haik@uncg.edu
Qadri
Shahnaz
S
Ganoe
Ashley
A
Ashraf
Sarmadia
S
Sawafta
Reyad
R
D000327:Adsorption; D005782:Gels; D005840:Gentian Violet / Q000302:isolation & purification*; D007220:Industrial Waste; D007700:Kinetics; D044367:Phase Transition; D044366:Transition Temperature; D014874:Water Pollutants, Chemical / Q000302:isolation & purification; D018508:Water Purification / Q000379:methods*
D005782:Gels; D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D005840:Gentian Violet