| CTMAB/CPAM复合改性膨润土吸附水中苯酚和硝基苯 |
| |
| 引用本文： | 王通,朱润良,葛飞,朱建喜,何宏平,陈望香.CTMAB/CPAM复合改性膨润土吸附水中苯酚和硝基苯[J].环境科学,2010,31(2):385-389. |
| |
| 作者姓名： | 王通 朱润良 葛飞 朱建喜 何宏平 陈望香 |
| |
| 作者单位： | 湘潭大学环境科学与工程系;中国科学院广州地球化学研究所; |
| |
| 基金项目： | 国家杰出青年科学基金项目(40725006);;国家高技术研究发展计划(863)项目(2008AA06Z328);;湘潭大学青年基金项目(08XZX15);;湖南省研究生科研创新基金项目(X2008YJSCX20) |
| |
| 摘 要： | 用十六烷基三甲基溴化铵(CTMAB)和阳离子型聚丙烯酰胺(CPAM)改性膨润土,制得系列CTMAB-膨润土(C-Bt)、CPAM-膨润土(P-Bt)和复合改性膨润土(C/P-Bt).采用XRD分析了各类有机膨润土的底面间距,并比较了它们吸附水中苯酚和硝基苯的性能.结果显示,C/P-Bt的底面间距大于相应的C-Bt和P-Bt,表明CTMAB与CPAM能同时层插到膨润土层间.C/P-Bt吸附性能优于C-Bt及C-Bt加P-Bt,在相同平衡浓度下(苯酚为7 045 mg/L,硝基苯为409 mg/L),60C/4%P-Bt对苯酚和硝基苯的吸附量分别为150 mg/g和69 mg/g,吸附量比60C-Bt分别提高了26%和28%,比60C-Bt加4%P-Bt分别提高了22%和26%,表现出明显协同吸附效应.这说明CTMAB在C/P-Bt层间的排列模式受CPAM的影响,形成了对有机物亲和能力更强的吸附介质.该新型有机膨润土在有机污染控制中有良好的应用前景.
|
| 关 键 词： | 有机膨润土 苯酚 硝基苯 吸附 废水处理 |
| 收稿时间： | 2009/3/30 0:00:00 |
| 修稿时间： | 2009/6/30 0:00:00 |
Sorption of Phenol and Nitrobenzene in Water by CTMAB/CPAM Organobentonites |
| |
| WANG Tong,ZHU Run-liang,GE Fei,ZHU Jian-xi,HE Hong-ping and CHEN Wang-xiang.Sorption of Phenol and Nitrobenzene in Water by CTMAB/CPAM Organobentonites[J].Chinese Journal of Environmental Science,2010,31(2):385-389. |
| |
| Authors: | WANG Tong ZHU Run-liang GE Fei ZHU Jian-xi HE Hong-ping and CHEN Wang-xiang |
| |
| Institution: | 1.Department of Environmental Science and Engineering;Xiangtan University;Xiangtan 411105;China;2.Guangzhou Institute of Geochemistry;Chinese Academy of Sciences;Guangzhou 510640;China |
| |
| Abstract: | A series of cetyltrimethyl amonium bromide bentonite(C-Bt),cationic polyacrylamide bentonite(P-Bt) and composite organobentonite(C/P-Bt) were synthesized by modifying bentonite with cetyltrimethyl ammonium bromide(CTMAB) and/or cationic polyacrylamide(CPAM).The basal spacings of the obtained organobentonites were analyzed with XRD.The sorption capacities of phenol and nitrobenzene to these organobentonites from water were examined.The results showed that the basal spacing values of C/P-Bt were larger than t... |
| |
| Keywords: | organobentonites phenol nitrobenzene sorption wastewater treatment |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
