Effects of the surface chemistry of macroreticular adsorbents on the adsorption of 1-naphthol/1-naphthylamine mixtures from water  

作　　者：ZHANG Wei-ming CHEN Jin-long CHEN Qun HE Min-yang PAN Bing-cai ZHANG Quan-xing 

机构地区：[1]State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, Naniing210093 China [2]Researeh Center for Engineering Technology of Organic Poison Control and Resources Reuse in Jiangsu Province, Nanjing 210038, China [3]Department of Chemical Engineering, Jiangsu Polytechnic, Changzhou 213016, China

出　　处：《Journal of Environmental Sciences》2005年第5期782-785,共4页环境科学学报（英文版）

基　　金：The National Natural Science Foundation of China( No. 20274017) and the Nature Science Foundation of Jiangsu Province( No. BK2004415)

摘　　要：The adsorption behaviors of 1-naphthol, 1-naphthylamine and l-naphthol/l-naphthylamine mixtures in water over two macroreticular adsorbents were investigated in single or binary batch systems at 293 K, 303 K and 313 K respectively. All the adsorption isotherms in the studied systems can be adequately fitted by Langmuir model. In the case of aminated macroreticular adsorbent NDA103, 1-naphthol is adsorbed to a larger extent than 1-naphthylamine; while, the opposite trend is found for nonpolar macroreticular adsorbent NDA100. It is noteworthy that at higher temperature（303 K and 313 K）, the total uptake amounts of 1-naphthol and 1-naphthylamine in all binary-component systems are obvious larger than the pure uptake amounts in single-component systems, which is presumably due to the cooperative effect primarily arisen from the hydrogen-bonding interaction between the loaded 1-naphthol and 1-naphthylamine molecules. The simultaneous adsorption systems were confirmed to be helpful to the selective adsorption towards 1-naphthol according to the larger selective index.The adsorption behaviors of 1-naphthol, 1-naphthylamine and l-naphthol/l-naphthylamine mixtures in water over two macroreticular adsorbents were investigated in single or binary batch systems at 293 K, 303 K and 313 K respectively. All the adsorption isotherms in the studied systems can be adequately fitted by Langmuir model. In the case of aminated macroreticular adsorbent NDA103, 1-naphthol is adsorbed to a larger extent than 1-naphthylamine; while, the opposite trend is found for nonpolar macroreticular adsorbent NDA100. It is noteworthy that at higher temperature（303 K and 313 K）, the total uptake amounts of 1-naphthol and 1-naphthylamine in all binary-component systems are obvious larger than the pure uptake amounts in single-component systems, which is presumably due to the cooperative effect primarily arisen from the hydrogen-bonding interaction between the loaded 1-naphthol and 1-naphthylamine molecules. The simultaneous adsorption systems were confirmed to be helpful to the selective adsorption towards 1-naphthol according to the larger selective index.

关 键 词：macroreticular adsorbent ADSORPTION 1-NAPHTHOL 1-NAPHTHYLAMINE cooperative effect 

分 类 号：X703.1[环境科学与工程—环境工程]