| 水滑石及其焙烧产物对阴离子染料酸性蓝-80的吸附 |
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| 引用本文： | 朱茂旭,王征,李艳苹,于红.水滑石及其焙烧产物对阴离子染料酸性蓝-80的吸附[J].环境化学,2007,26(3):371-375. |
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| 作者姓名： | 朱茂旭 王征 李艳苹 于红 |
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| 作者单位： | 中国海洋大学化学化工学院,青岛,266100 |
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| 摘 要： | 研究了水滑石(HT)及其焙烧产物(HTC)对阴离子染料酸性蓝-80的吸附特征.结果表明,在常见染料废水浓度范围内,HTC的吸附量和吸附速率都明显大于HT,HTC的吸附等温线和动力学分别符合Langmuir等温方程和粒间扩散模型.HTC对阴离子染料的去除受无机阴离子(Cl-, SO2-4 和CO2-3)的影响较小,阴离子表面活性剂十二烷基硫酸钠(SDS)的存在能明显降低酸性蓝-80的吸附量.吸附量随温度的升高明显下降.
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| 关 键 词： | 水滑石 酸性蓝-80 吸附 水滑石 焙烧产物 阴离子染料 酸性蓝 吸附等温线 PRODUCT HYDROTALCITE ACID 高明 温度 存在 十二烷基硫酸钠 阴离子表面活性剂 影响 无机阴离子 扩散模型 等温方程 Langmuir 动力学 吸附速率 |
| 修稿时间： | 2006-05-08 |
SORPTION OF ANIONIC DYE ACID BLUE-80 ONTO HYDROTALCITE AND ITS CALCINED PRODUCT |
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| ZHU Mao-xu,WANG Zheng,LI Yan-ping,YU Hong.SORPTION OF ANIONIC DYE ACID BLUE-80 ONTO HYDROTALCITE AND ITS CALCINED PRODUCT[J].Environmental Chemistry,2007,26(3):371-375. |
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| Authors: | ZHU Mao-xu WANG Zheng LI Yan-ping YU Hong |
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| Institution: | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China |
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| Abstract: | The sorption behavior of an anionic dye acid blue-80 on hydrotalcite(HT)and its calcined product(HTC)was studied.Results showed that HTC and HT could be used as elective adsorbents to remove anionic dye from wastewaters.Both the capacity and kinetic rate for the dye sorption by HTC were much larger than by HT.The isotherms and kinetics for the dye sorption by HTC could be well fitted to the Langmuir equation and intraparticle diffusion model,respectively.Effects of the presence of Cl-,SO2-4 and CO2-3 on the dye sorption were slight,however the presence of sodium dodecylsulfate(SDS)could greatly suppress the dye sorption.Capacity of the dye sorption by HTC significantly decreased with an increase in temperature. |
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| Keywords: | hydrotalcite acid bliue-80 sorption |
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