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首页> 外文期刊>Journal of Polymers and the Environment >Adsorption Study of Anionic Dye, Eriochrome Black T from Aqueous Medium Using Polyvinyl Alcohol/Starch/ZSM-5 Zeolite Membrane
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Adsorption Study of Anionic Dye, Eriochrome Black T from Aqueous Medium Using Polyvinyl Alcohol/Starch/ZSM-5 Zeolite Membrane

机译：使用聚乙烯醇/淀粉/ ZSM-5沸石膜从水性介质中的阴离子染料，Eriochrome Black T的吸附研究

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摘要

Here we investigated the application of a novel polyvinyl alcohol/starch/ZSM-5 zeolite membrane as an adsorbent for the removal of Eriochrome black T (EBT) from aqueous medium. Physical and chemical structure of the membranes was characterized by scanning electron microscopy, optical microscopy, Fourier-transform infrared spectroscopy, X-Ray diffraction, thermogravimetric analysis and universal testing machine. Swelling measurement shows that with increase in zeolite content the hydrophobicity of the membrane also increases. Adsorption measurements were monitored spectrophotometrically at 530 nm. Results indicate that the operational parameters (initial dye concentration, zeolite dosage, temperature, pH and contact time) has significant influence on the adsorption behavior of the membrane. The maximum adsorption capacity was estimated to be 2.17 mg/g for 5 wt% zeolite loaded membrane at an initial concentration of 10 mg/L, at room temperature and at pH 3. Adsorption kinetics analysis revealed that pseudo-second-order model describes the adsorption of EBT onto PVA/starch/ZSM-5 zeolite membrane with correlation coefficient close to one. Adsorption isotherm was analyzed using Langmuir and Freundlich isotherm models and the result shows that adsorption follow Freundlich isotherm model. Adsorption-desorption studies suggests that the membrane possess good regeneration capacity.
机译：在这里，我们研究了一种新型聚乙烯醇/淀粉/ ZSM-5沸石膜作为吸附剂，用于从水性介质中除去埃里克罗姆黑T（EBT）。通过扫描电子显微镜，光学显微镜，傅立叶变换红外光谱，X射线衍射，热重分析和通用试验机，表征膜的物理和化学结构。溶胀测量表明，随着沸石含量的增加，膜的疏水性也增加。在530nm处分光光度测量吸附测量。结果表明，操作参数（初始染料浓度，沸石剂量，温度，pH和接触时间）对膜的吸附行为有显着影响。在室温和pH 3的初始吸附容量为5wt％沸石负载膜的最大吸附能力为2.17mg / g，在室温下，在pH 3时，吸附动力学分析显示伪二阶模型描述了EBT在PVA /淀粉/ ZSM-5沸石膜上的吸附，其相关系数接近一个。使用Langmuir和Freundlich等温线模型分析吸附等温线，结果表明吸附遵循Freundlich等温线模型。吸附解吸研究表明膜具有良好的再生能力。

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  • 来源
    《Journal of Polymers and the Environment》 |2020年第10期|2631-2643|共13页
  • 作者

    Radoor Sabarish; Karayil Jasila; Parameswaranpillai Jyotishkumar; Siengchin Suchart;

  • 作者单位

    King Mongkuts Univ Technol North Bangkok Sirindhorn Int Thai German Grad Sch Engn TGGS Dept Mech & Proc Engn 1518 Wongsawang Rd Bangkok 10800 Thailand;

    Govt Womens Polytech Coll Calicut Kerala India;

    King Mongkuts Univ Technol North Bangkok Sirindhorn Int Thai German Grad Sch Engn TGGS Dept Mech & Proc Engn 1518 Wongsawang Rd Bangkok 10800 Thailand;

    King Mongkuts Univ Technol North Bangkok Sirindhorn Int Thai German Grad Sch Engn TGGS Dept Mech & Proc Engn 1518 Wongsawang Rd Bangkok 10800 Thailand;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PVA; Starch; ZSM-5 zeolite; Adsorption; Eriochrome black T;

    机译：PVA;淀粉;ZSM-5沸石;吸附;Eriochrome Black T.;

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