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松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能

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赵芳, 马亚红, 李振林, 董慧峪, 杜寒春, 刘绍刚, 刁开盛, 雷福厚, 谭学才. 松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能[J]. 环境化学, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
引用本文: 赵芳, 马亚红, 李振林, 董慧峪, 杜寒春, 刘绍刚, 刁开盛, 雷福厚, 谭学才. 松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能[J]. 环境化学, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
shu
ZHAO Fang, MA Yahong, LI Zhenlin, DONG Huiyu, DU Hanchun, LIU Shaogang, DIAO Kaisheng, LEI Fuhou, TAN Xuecai. Adsorption properties of Congo red on natural zeolite modified with cationic surfactant of rosin-based quaternary ammonium[J]. Environmental Chemistry, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
Citation: ZHAO Fang, MA Yahong, LI Zhenlin, DONG Huiyu, DU Hanchun, LIU Shaogang, DIAO Kaisheng, LEI Fuhou, TAN Xuecai. Adsorption properties of Congo red on natural zeolite modified with cationic surfactant of rosin-based quaternary ammonium[J]. Environmental Chemistry, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
shu

松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能

  • 1.

    广西民族大学化学化工学院, 广西林产化学与工程重点实验室, 广西药物分析与安全重点实验室, 南宁, 530008;

  • 2.

    中国科学院生态环境研究中心, 中国科学院饮用水科学与技术重点实验室, 北京, 100085;

  • 3.

    广西壮族自治区分析测试研究中心, 南宁, 530022

  • 基金项目:

    国家自然科学基金(21367004)

    广西自然科学基金(2014GXNSFAA118284)

    中国博士后基金(2014M550096)

    广西科技开发计划项目(桂科能14123006-24)

    广西民族大学相思湖青年学者创新团队资助.

Adsorption properties of Congo red on natural zeolite modified with cationic surfactant of rosin-based quaternary ammonium

  • 1.

    School of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Key Laboratory of Chemistry and Engineering of Forest Products, Nanning, 530008, China;

  • 2.

    Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China;

  • 3.

    Analysis and Testing center of Guangxi Zhuang Autonomous Region, Nanning, 530022, China

  • Fund Project:

  • 摘要: 以松香基季铵盐阳离子表面活性剂(N, N, N-三甲基-N -松香基氯化铵,TAAC)对天然沸石进行改性得到TAAC改性沸石并进行红外光谱、扫描电镜和X射线粉末衍射等手段表征.考察了TAAC改性沸石对水中刚果红的吸附性能的影响因素,如粒径、改性剂投加量、温度、pH值等,结果表明这一改性能显著地提高沸石对刚果红的吸附量;在pH值4.0-10.0范围内,CR的吸附量随着pH值增加而下降; 反应温度从20 ℃上升至40 ℃, TAAC改性沸石对CR的吸附容量有所下降.TAAC.改性沸石对水中刚果红的吸附动力学过程符合准二级动力学模型.Langmuir等温吸附模型可以较好的描述TAAC改性沸石对水中刚果红的吸附过程,其最大吸附容量为78 mgg-1(pH 6.0, T=20 ℃).热力学分析表明,TAAC改性沸石对水中刚果红的吸附是自发和放热的过程,是化学吸附和物理吸附共同作用的过程,其吸附机制主要为静电吸引、氢键和芳香基的疏水作用.TAAC改性沸石吸附刚果红后可通过NaOH再生,且随着NaOH浓度的增加到0.1 molL-1,其解吸率明显增大.
    Abstract: Natural zeolite modified with N, N, N -trimethyl-N-abietyl ammonium chloride (TAAC) was used as an adsorbent to remove Congo red (CR) dye from aqueous solutions. Its features were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy, and N2 adsorption-desorption isotherm analysis. The effects of particle size, loading amount, pH and sorbent dosage on the adsorption properties of CR on TAAC modified zeolite were investigated in batch experiments. Experimental results show that TAAC modification on natural zeolite improved its CR sorption capacity significantly. The adsorption capacity of CR on TAAC modified zeolite decreased with increases in pH and temperature. The isotherm equilibrium process of CR fits Freundlich model well, and its calculated maximum monolayer adsorption capacity was 78 mgg-1at pH 6.0, 20 ℃. The adsorption of CR followed the pseudo-second order kinetic. Thermodynamic calculations show that the adsorption of CR dye was a spontaneous and endothermic process, which is mostly attributed to electrostatic interaction, hydrogen bonds, and hydrophobic bonding. The CR adsorbed on the TAAC modified zeolite could be desorbed and its desorption efficiency could be greatly enhanced by addition of sodium hydroxide.
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  • 收稿日期:  2015-09-18
  • 刊出日期:  2015-12-15
赵芳, 马亚红, 李振林, 董慧峪, 杜寒春, 刘绍刚, 刁开盛, 雷福厚, 谭学才. 松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能[J]. 环境化学, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
引用本文: 赵芳, 马亚红, 李振林, 董慧峪, 杜寒春, 刘绍刚, 刁开盛, 雷福厚, 谭学才. 松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能[J]. 环境化学, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
shu
ZHAO Fang, MA Yahong, LI Zhenlin, DONG Huiyu, DU Hanchun, LIU Shaogang, DIAO Kaisheng, LEI Fuhou, TAN Xuecai. Adsorption properties of Congo red on natural zeolite modified with cationic surfactant of rosin-based quaternary ammonium[J]. Environmental Chemistry, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
Citation: ZHAO Fang, MA Yahong, LI Zhenlin, DONG Huiyu, DU Hanchun, LIU Shaogang, DIAO Kaisheng, LEI Fuhou, TAN Xuecai. Adsorption properties of Congo red on natural zeolite modified with cationic surfactant of rosin-based quaternary ammonium[J]. Environmental Chemistry, 2015, 34(12): 2223-2232. doi: 10.7524/j.issn.0254-6108.2015.12.2015091801
shu

松香基季铵盐表面活性剂改性沸石对水中刚果红的吸附性能

  • 1.  广西民族大学化学化工学院, 广西林产化学与工程重点实验室, 广西药物分析与安全重点实验室, 南宁, 530008;
  • 2.  中国科学院生态环境研究中心, 中国科学院饮用水科学与技术重点实验室, 北京, 100085;
  • 3.  广西壮族自治区分析测试研究中心, 南宁, 530022
  • 收稿日期:  2015-09-18
基金项目:

国家自然科学基金(21367004)

广西自然科学基金(2014GXNSFAA118284)

中国博士后基金(2014M550096)

广西科技开发计划项目(桂科能14123006-24)

广西民族大学相思湖青年学者创新团队资助.

摘要: 以松香基季铵盐阳离子表面活性剂(N, N, N-三甲基-N -松香基氯化铵,TAAC)对天然沸石进行改性得到TAAC改性沸石并进行红外光谱、扫描电镜和X射线粉末衍射等手段表征.考察了TAAC改性沸石对水中刚果红的吸附性能的影响因素,如粒径、改性剂投加量、温度、pH值等,结果表明这一改性能显著地提高沸石对刚果红的吸附量;在pH值4.0-10.0范围内,CR的吸附量随着pH值增加而下降; 反应温度从20 ℃上升至40 ℃, TAAC改性沸石对CR的吸附容量有所下降.TAAC.改性沸石对水中刚果红的吸附动力学过程符合准二级动力学模型.Langmuir等温吸附模型可以较好的描述TAAC改性沸石对水中刚果红的吸附过程,其最大吸附容量为78 mgg-1(pH 6.0, T=20 ℃).热力学分析表明,TAAC改性沸石对水中刚果红的吸附是自发和放热的过程,是化学吸附和物理吸附共同作用的过程,其吸附机制主要为静电吸引、氢键和芳香基的疏水作用.TAAC改性沸石吸附刚果红后可通过NaOH再生,且随着NaOH浓度的增加到0.1 molL-1,其解吸率明显增大.

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