[1]高叶松,欧阳通,张姣灵,等.HDTMA有机高岭土对甲基异柳磷的吸附性能[J].华侨大学学报(自然科学版),2009,30(1):56-61.[doi:10.11830/ISSN.1000-5013.2009.01.0056]
　GAO Ye-song,OUYANG Tong,ZHANG Jiao-ling,et al.Sorption of Isofenphos-Methyl on HDTMA Modified Organic Kaolin[J].Journal of Huaqiao University(Natural Science),2009,30(1):56-61.[doi:10.11830/ISSN.1000-5013.2009.01.0056]
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HDTMA有机高岭土对甲基异柳磷的吸附性能()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第30卷
期数:
2009年第1期
页码:
56-61
栏目:
出版日期:
2009-01-20

文章信息/Info

Title:
Sorption of Isofenphos-Methyl on HDTMA Modified Organic Kaolin
文章编号:
1000-5013(2009)01-0056-06
作者:
高叶松; 欧阳通; 张姣灵; 刘耀兴
厦门大学环境科学研究中心
Author(s):
GAO Ye-song;  OUYANG Tong;  ZHANG Jiao-ling;  LIU Yao-xing
Environmental Science Research Center, Xiamen University, Xiamen 361005, China
关键词:
有机高岭土;  十六烷基三甲基溴化铵;  甲基异柳磷;  吸附性能
Keywords:
modified kaolin;  HDTMA;  preparation;  isofenphos-methyl;  adsorption
分类号:
TB34
DOI:
10.11830/ISSN.1000-5013.2009.01.0056
文献标志码:
A
摘要:
采用十六烷基三甲基溴化铵(HDTMA)改性高岭土,研究制备条件对有机磷农药甲基异柳磷的吸附性能影响.结果表明,在室温(23~30℃)和pH值为4的条件下,用30μmol.g-1的HDTMA反应15 min,改性制备的有机高岭土对甲基异柳磷的吸附效果最佳.改性高岭土吸附能力比未改性高岭土明显增强,吸附等温线符合Freundlich等温吸附方程.吸附反应速度较快,在最佳吸附条件下,即有机高岭土投加质量浓度为10.0 g.L-1,溶液中甲基异柳磷初始质量浓度为30 mg.L-1,吸附平衡时间为40 min.在所选pH=5~9的范围内,有机改性高岭土对甲基异柳磷的吸附率均能保持在80%左右.
Abstract:
Organic modified kaolin samples were prepared by mixing a small quantity of natural kaolin with surfactant solutions of hexa decyl trimethy lammonium(HDTMA).Series of adsorption isotherm experiments were performed to determine the capacity of organic clays for isofenphos-methyl.The optimal synthetic condition was found as the following: dosage of HDTMA at the proportion of 30 μmol·g-1 of the natural kaolin,reaction pH of 4,reaction time of 15 minutes at room temperature.The removal capacity of the HDTMA modified kaolin increased significantly compared with that of the original kaolin sample.The adsorption isotherms were fit well for the Freundlich model; about 80% removal of isofenphos-methyl could be achieved within 40 minutes at the initial concentration isofenphos-methyl of 30 mg·L-1,dosage of adsorbent at 10 g·L-1 in the natural water pH range of 5 to 9.

参考文献/References:

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备注/Memo

备注/Memo:
福建省自然科学基金资助项目(D0510005)
更新日期/Last Update: 2014-03-23