Phase change material for efficient removal of crystal violet dye

被引:21
作者
Haik, Yousef [1 ,2 ]
Qadri, Shahnaz [1 ]
Ganoe, Ashley [1 ]
Ashraf, Sarmadia [1 ]
Sawafta, Reyad [3 ]
机构
[1] Univ N Carolina, Ctr Res Excellence Nonobiosci, Greensboro, NC 27402 USA
[2] United Arab Emirates Univ, Dept Mech Engn, Al Ain, U Arab Emirates
[3] Quartek Corp, Greensboro, NC 27410 USA
关键词
Crystal violet; Phase change material; Dye recovery; AZO DYES; ADSORPTION; EQUILIBRIUM; LACCASE; WATER;
D O I
10.1016/j.jhazmat.2009.11.109
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
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. (C) 2009 Elsevier B.V. All rights reserved.
引用
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页码:1110 / 1112
页数:3
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