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《Journal of Fujian Forestry Science and Technology》 2018-02
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Modification of Camellia oleifera Shell Extract and Its Adsorption on Cr(Ⅵ) and Cu(Ⅱ)

SU Liangquan;LU Yudong;CHEN Caizhen;WU Yang;KE Jinlian;WU Zonghua;Fujian Academy of Forestry;College of Chemistry and Materials Science,Fujian Normal University;  
Polyphenol adsorbent was prepared by cross linking of Camellia oleifera shell extract with glutaraldehyde.Effects of pH,adsorption time and other factors on the adsorption of chromium ions and copper ions by modified adsorbents were discussed.The adsorption kinetics model was used for simulation.The results showed that the saturated adsorption capacity of polyphenol adsorbent on Cr(Ⅵ) and Cu(Ⅱ) ions reached 99.6 mg·g~(-1) and 71.7 mg·g~(-1) respectively,and had good regeneration and adsorption properties.When adsorbents were used for 3 times,the saturated adsorption capacity for Cr(Ⅵ) ions still reached 83.2 mg·g~(-1).Through the simulation of the adsorption kinetics model,the adsorption kinetics of Cr(Ⅵ) ions in the modified adsorbent can be simulated by the pseudo-first-order.The kinetic process of Cu(Ⅱ) ion adsorption can be simulated by the pseudo-second-order.
【Fund】: 福建省林业厅项目(闽林科【2017】3号);; 福建省科技厅产学研项目(2017N5007);福建省科技厅项目(2015N0026);; 福建师范大学泉港石化研究院专项资金项目(2017YJY11)
【CateGory Index】: O647.3;X703
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