CIESC Journal ›› 2015, Vol. 66 ›› Issue (3): 1042-1050.DOI: 10.11949/j.issn.0438-1157.20141376

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Effect of chain length and amount of quaternary ammonium salts on CnTA+/montmorillonite nanocomposites adsorption of PAEs

LI Li1,2, SUN Hongjuan1,2, PENG Tongjiang1,2   

  1. 1 Key Laboratory of Ministry of Education for Solid Waste Treatment and Resource Recycle, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China;
    2 Institute of Mineral Materials & Application, Southwest University of Science and Technology, Mianyang 621010, Sichuan, China
  • Received:2014-09-15 Revised:2014-11-15 Online:2015-03-05 Published:2015-03-05
  • Supported by:

    supported by the National Natural Science Foundation of China (41372052) and the Project in Sichuan Province Department of Education (11ZB103).

季铵盐链长及用量对CnTA+/蒙脱石纳米复合物吸附PAEs的影响

李莉1,2, 孙红娟1,2, 彭同江1,2   

  1. 1 西南科技大学固体废物处理与资源化省部共建教育部重点实验室, 四川 绵阳 621010;
    2 西南科技大学矿物材料及应用研究所, 四川 绵阳 621010
  • 通讯作者: 孙红娟
  • 基金资助:

    国家自然科学基金项目(41372052);四川省教育厅项目(11ZB103)。

Abstract:

Quaternary ammonium salts cation and montmorillonite nanocomposites (CnTA+/montmorillonite nanocomposites) were prepared from a series of quaternary ammonium salts with the same structure but different alkyl carbon chain lengths to adsorb phthalate ester (PAEs) in aqueous solution. The effects of CnTA+/montmorillonite nanocomposites prepared with different alkyl carbon chain lengths and amounts of quaternary ammonium salts on PAEs adsorption efficiency were investigated. CnTA+/montmorillonite nanocomposites as-prepared could adsorb PAEs effectively. Alkyl carbon chain length and amount of quaternary ammonium salts both affected adsorption results. At a smaller amount of quaternary ammonium salts, the adsorption removal of PAEs increased with increasing alkyl chain length of quaternary ammonium salts. However, at a larger amount of quaternary ammonium salts, the adsorption removal of PAEs increased firstly and then decreased with increasing alkyl chain length of quaternary ammonium salts.

Key words: quaternary ammonium salts, CnTA+/montmorillonite nanocomposites, nanostructure, phthalic esters, aqueous solution, adsorption

摘要:

用具有相同结构但不同烷基碳链长度的系列季铵盐制得CnTA+/蒙脱石纳米复合物,并对水溶液中邻苯二甲酸酯进行吸附实验。探讨了季铵盐烷基碳链链长和用量对制得的CnTA+/蒙脱石纳米复合物吸附水溶液中PAEs效果的影响。结果表明:CnTA+/蒙脱石纳米复合物能有效地吸附溶液中的PAEs,季铵盐烷基碳链链长及用量均对CnTA+/蒙脱石纳米复合物的吸附效果产生影响。当季铵盐用量较低时,随着季铵盐烷基链长的增加,PAEs的吸附去除率增加;增大季铵盐用量,随着季铵盐烷基链长的增加,PAEs的吸附去除率先增大后减小。

关键词: 季铵盐, CnTA+/蒙脱石纳米复合物, 纳米结构, 邻苯二甲酸酯, 水溶液, 吸附

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