| 凹凸棒复合滤料对亚甲基蓝的吸附研究 |
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| 引用本文： | 沈涛,王郑,缪伟,周祺,陈明明,王琪,陈泽恩.凹凸棒复合滤料对亚甲基蓝的吸附研究[J].材料开发与应用,2009,24(5):44-48. |
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| 作者姓名： | 沈涛 王郑 缪伟 周祺 陈明明 王琪 陈泽恩 |
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| 作者单位： | 南京林业大学土木工程学院,江苏,南京,210037 |
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| 基金项目： | 南京林业大学2007年科技创新项目，南京林业大学2008年大学生实验室创新项目 |
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| 摘 要： | 以凹凸棒土为主要原料合成凹凸棒复合滤料，并对其对亚甲基蓝的静态吸附性能进行研究。实验研究了吸附时间、吸附剂投加量、初始浓度、pH值及温度对凹凸棒复合滤料对亚甲基兰吸附效果的影响，并对吸附结束后的凹凸棒复合滤料进行再生实验。结果表明，凹凸棒复合滤料吸附亚甲基蓝在1．5h可达平衡。在温度为30℃条件下，吸附剂对20mg／L亚甲基兰溶液吸附率可达99．36％。吸附等温线可用Langraulr方程描述，吸附速率方程符合准二级动力学方程。凹凸棒复合滤料通过再生后可以反复使用。
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| 关 键 词： | 凹凸棒复合滤料 亚甲基蓝 吸附 |
Study on Adsorption of Methylene Blue on Composite Attapulgite Material |
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| SHEN Tao,WANG Zheng,MIAO Wei,ZHOU Qi,CHENG Ming-ming,WANG Qi,CHEN Ze-en.Study on Adsorption of Methylene Blue on Composite Attapulgite Material[J].Development and Application of Materials,2009,24(5):44-48. |
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| Authors: | SHEN Tao WANG Zheng MIAO Wei ZHOU Qi CHENG Ming-ming WANG Qi CHEN Ze-en |
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| Affiliation: | SHEN Tao,WANG Zheng,MIAO Wei,ZHOU Qi,CHENG Ming-ming,WANG Qi,CHEN Ze-en(Nanjing Forestry University,College of Civil Engineering,Nanjing 210037,China) |
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| Abstract: | Batch experiments were carried out to investigate the adsorption of methylene blue on attapulgite composite material.The influence of adsorption time,adsorbent dosage,initial concentration,pH,temperature an adsorption-reqeneration of Methylone Blue were studied.The results showed that the adsorption of methylene blue on attapulgite composite material achieved equilibrium through 1.5h.At 30 ℃,the initial concentration of solution 20mg/L,the adsorption rate can reach 99.36%.The adsorption isotherms could be modeled by Langmuir equation.The adsorption rate could be described by quasi-second-order kinetics equation.Attapulgite composite material has high recycling rate after regeneration. |
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| Keywords: | Attapulgite composite material Methylene blue Absorption |
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