ADSORPTION OF DINITROPHENOLS ONTO POLYMERIC ADSORBENTS AND ITS MECHANISM

查看全文 作　　者：[1]SHIZuoqing;[2]XUMancai;等 机构地区：[1]TheStateKeyLab.ofFunctionalPolymericMaterialsforAdsorptionandSeparationInstituteofPolymerChemistry,nankaiUniversity,Tianjin300071;[2]DepartmentofChemistry,HunanNormalUniversity,Chang 出　　处：《Chinese Journal of Reactive Polymers》索引2000年第9卷第1期,共8页 基　　金：Supported by the National Natural Science Foundation of China !(Grant No. 29574164) 摘　　要：The adsorption of 2,4-dinitrophenol and 2.6-dinitrophenol on non-polar and polar adsorbents was studied. The results showed that the equilibrium adsorption did not comply with the Langmuir equation and was not mono-layer absorption. It is of interest to notice that the effect of pH on the adsorption of 2.4-or 2,6-dinitrophenol onto ADS-7 and ADS-21 was very small. The result is explained by hydrogen bonding interaction between 2, 4- or 2. 6-dinitrophenol and the adsorbent ADS21. The large adsorption capacity of dinitrophenol onto ADS-21, which was about 500 mg/g at an equilibrium concentration of 400 mg/L. and the small dinitrophenol leakage in the effluent from ADS- 21 column presented a good prospect for treatment of wastewater containing dinitrophenol with absorbent ADS-21. 关 键 词：聚合吸附剂 二硝基苯酚 吸收