Journal of Jilin University Science Edition ›› 2024, Vol. 62 ›› Issue (2): 444-0451.
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YANG Weijie, LI Jie, LI Yanxia, ZHAO Hui
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Abstract: The dithiocarbamate modified graphene oxide (GO) material (GO-TETA-DTC) based on triethylenetetramine (TETA) was prepared by grafting TETA onto the surface of GO firstly and then reacting it with CS2. The GO-TETA-DTC was characterized and analyzed by infrared spectrometer, element analyzer and scanning electron microscope. We studied the adsorption performance of the material on Cu2+, and investigated the effects of pH values of solution, initial mass concentration of Cu2+, adsorption time and temperature on adsorption effects. The results show that the adsorption process of Cu2+ in water by GO-TETA-DTC follows the quasi-second order kinetic equation, the intra-particle diffusion equation and Langmuir equation. The maximum adsorption capacity of GO-TETA-DTC for Cu2+ calculated from Langmuir equation is 294.12 mg/g. The adsorption process takes place in the form of heat absorption and entropy increase.
Key words:  , graphene,  , dithiocarbamate,  , copper ion,  , adsorption
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YANG Weijie, LI Jie, LI Yanxia, ZHAO Hui. Dithiocarbamate Modified GO Material and Its Adsorption Performance for Cu2+[J].Journal of Jilin University Science Edition, 2024, 62(2): 444-0451.
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http://xuebao.jlu.edu.cn/lxb/EN/Y2024/V62/I2/444
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