| SORPTION OF PHENOL AND P-NITROPHENOL ONTO A WEAKLY ANION EXCHANGER: XPS ANALYSIS AND MECHANISM |
| |
| 作者姓名： | LI Xiaotao Pan Bingcai Pan Bingjun Zhang Weimin Meng Fanwei Chen Jinlong Zhang Quanxing . State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing China . |
| |
| 作者单位： | LI Xiaotao1，2 Pan Bingcai1 Pan Bingjun1 Zhang Weimin1 Meng Fanwei1 Chen Jinlong1 Zhang Quanxing1 1. State Key Laboratory of Pollution Control and Resources Reuse，School of the Environment，Nanjing University，Nanjing 210093，China 2. Department of Science and Technology，State Environmental Protection Agency，Beijing 100035，China |
| |
| 基金项目： | National Natural Science Funding (20504012) and Natural Science Funding of Jiangsu Province (BK2004415) |
| |
| 摘 要： | 1. INTRODUCTION Phenolic compounds are pollutants encountered frequently in water system. Some of them, such as phenol and p-nitrophenol, have been listed as priority pollutants in many countries. How to remove them completely from the polluted water is of significant concern to environmental scientists. Up to now many technologies such as biodegradation, oxidation and adsorption are available to remove phenolic compounds from the receiving water 1~4]. In the past two decadesphenol sorpt…
|
SORPTION OF PHENOL AND P-NITROPHENOL ONTO A WEAKLY ANION EXCHANGER: XPS ANALYSIS AND MECHANISM |
| |
| LI Xiaotao, Pan Bingcai Pan Bingjun Zhang Weimin Meng Fanwei Chen Jinlong Zhang Quanxing . State Key Laboratory of Pollution Control and Resources Reuse,School of the Environment,Nanjing University,Nanjing ,China ..SORPTION OF PHENOL AND P-NITROPHENOL ONTO A WEAKLY ANION EXCHANGER: XPS ANALYSIS AND MECHANISM[J].离子交换与吸附(英文版),2005(Z1). |
| |
| Authors: | LI Xiaotao Pan Bingcai Pan Bingjun Zhang Weimin Meng Fanwei Chen Jinlong Zhang Quanxing State Key Laboratory of Pollution Control and Resources Reuse School of the Environment Nanjing University Nanjing China |
| |
| Institution: | LI Xiaotao1,2 Pan Bingcai1 Pan Bingjun1 Zhang Weimin1 Meng Fanwei1 Chen Jinlong1 Zhang Quanxing1 1. State Key Laboratory of Pollution Control and Resources Reuse,School of the Environment,Nanjing University,Nanjing 210093,China 2. Department of Science and Technology,State Environmental Protection Agency,Beijing 100035,China |
| |
| Abstract: | X-ray photoelectron spectroscopy(XPS)was adopted to elucidate sorption mechanism of phenol and p-nitrophenol onto a weakly anion exchanger D301.The distribution of specific forms of tertiary amino group on D301 was obtained and effect of free tertiary amino group on phenol sorption onto D301 was discussed. The result indicated that the percent of the protonated tertiary amine group on polymeric matrix was much lower than the reference compound N,N-dimethylbenzylamine at an identical pH value in solution due to the much lower activity degree of hydrogen ion in inner resin phase than in the external solution. Less free amino group on D301 results in less sorption capacity of phenol and p-nitrophenol in an acidic solution. Under the experimental conditions both phenol sorption onto D301 can be explained as solid extraction and the distribution coefficient varies linearly with the content of free amino group on D301. |
| |
| Keywords: | XPS Anion exchanger Phenolic compounds Sorption mechanism |
| 本文献已被 CNKI 等数据库收录！ |
