| 表面活性剂改性膨润土吸附Cr(VI)的研究 |
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| 引用本文： | 王永好,陈建中,高绍康,赵剑曦,黄长沧,叶雅珍.表面活性剂改性膨润土吸附Cr(VI)的研究[J].福州大学学报(自然科学版),2004,32(2):212-215. |
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| 作者姓名： | 王永好 陈建中 高绍康 赵剑曦 黄长沧 叶雅珍 |
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| 作者单位： | 福州大学化学化工学院,福建,福州,350002 |
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| 摘 要： | 研究了膨润土原土及2种经不同表面活性剂改性的膨润土在不同的pH值、不同的用量等条件下对Cr(VI)的吸附情况,以及3种土达到吸附平衡所需的时间.还研究了3种土对Cr(VI)的等温吸附.结果表明,1827改性的膨润土吸附效果好,平均去除率为93%,且几乎不受pH值和时间的影响.其中2种改性膨润土对Cr(VI)的吸附为Freundlich吸附.
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| 关 键 词： | 膨润土 改性 吸附 去除率 Cr(VI) |
| 文章编号： | 1000-2243(2004)02-0212-04 |
| 修稿时间： | 2003年8月20日 |
Removal of Cr(VI) from aqueous solution by adsorption on modified bentonite |
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| WANG Yong-hao,CHEN Jian-zhong,GAO Shao-kang,ZHAO Jian-xi,HUANG Chang-cang,YE Ya-zhen.Removal of Cr(VI) from aqueous solution by adsorption on modified bentonite[J].Journal of Fuzhou University(Natural Science Edition),2004,32(2):212-215. |
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| Authors: | WANG Yong-hao CHEN Jian-zhong GAO Shao-kang ZHAO Jian-xi HUANG Chang-cang YE Ya-zhen |
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| Institution: | (College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China) |
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| Abstract: | Two kinds of modified bentonite were prepared with different surfactant. Experiments were made on removal Cr(VI) from aqueous solution with the original bentonite and modified bentonite .The optimum Cr(VI)-absorbing conditions and adsorption isotherms of these three samples were investigated in detail. The result show that 1827-bentonite have high removal rate without the effect of pH and time. The adsorption isotherms of two modified bentonite are of Freundlich-type. |
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| Keywords: | bentonite modification adsorption removal rate Cr(VI) |
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