| 土对十六烷基三甲基溴化铵的吸附研究 |
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| 引用本文： | 杨亚提,孟昭福,赵敏.土对十六烷基三甲基溴化铵的吸附研究[J].西北农林科技大学学报(社会科学版),2007,35(2):149-152. |
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| 作者姓名： | 杨亚提 孟昭福 赵敏 |
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| 作者单位： | 杨亚提（西北农林科技大学,理学院,陕西,杨凌,712100）;孟昭福（西北农林科技大学,理学院,陕西,杨凌,712100）;赵敏（西北农林科技大学,理学院,陕西,杨凌,712100） |
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| 基金项目： | 西北农林科技大学重点专项基金 |
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| 摘 要： | 采用一次平衡法初步研究了(土娄)土对十六烷基三甲基溴化铵(CTMAB)的吸附机制.结果表明,(土娄)土对CTMAB的吸附等温线属于S型,吸附量和吸附力很大;pH增加,土壤对CTMAB的吸附量略有增加;CTMAB在土壤表面是多层吸附,以单分子或二分子缔合体的形式吸附于土壤表面;CTMAB在土壤-溶液体系的临界表面胶团浓度smc显著小于溶液体系CTMAB的临界胶团浓度cmc.
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| 关 键 词： | (土娄)土 十六烷基三甲基溴化铵 吸附 表面改性 |
| 文章编号： | 1671-9387(2007)02-0149-04 |
| 修稿时间： | 2005年12月26 |
Studies on the adsorption
of cetyltrimethylammouium bromide (CTMAB) in old manured loessal soil |
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| YANG Ya-ti.Studies on the adsorption
of cetyltrimethylammouium bromide (CTMAB) in old manured loessal soil[J].Journal of Northwest Sci-Tech Univ of Agr and,2007,35(2):149-152. |
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| Authors: | YANG Ya-ti |
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| Abstract: | The adsorption of cetyltrimethylammouium bromide in old manured loessal soil was studied by equiliibrium method.Results showed that the adsorption isotherms belonged to S type,the adsorbed amount and adsorbed affinity were very high.The adsorbed amount increased slightly with the increase of pH.CTMAB adsorption in soil was multi-layer,CTMAB with single molecule or double molecule combination was adsorbed by soil.Surface micelle concentration(smc) of CTMAB in soil-solution system was obviously less than critical micelle concentration(cmc) of CTMAB in solution. |
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| Keywords: | old manured loessal soil cetyltrimethylammouium bromide adsorption surface modification |
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