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Phase change material for efficient removal of crystal violet dye
Yousef Haik1, Shahnaz Qadri, Ashley Ganoe
1Center of Research Excellence in Nanobiosciences, University of North Carolina at Greensboro, 321 McIver, Greensboro NC 27402, United States. y_haik@uncg.edu
Abstract:
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.
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