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.

在这里，我们研究了新型聚乙烯醇/淀粉/ ZSM-5沸石膜作为吸附剂从水性介质中去除铬黑T（EBT）的应用。膜的物理和化学结构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，热重分析和通用测试机表征。溶胀测量表明，随着沸石含量的增加，膜的疏水性也增加。分光光度法在530 nm处监测吸附测量。结果表明，操作参数（初始染料浓度，沸石用量，温度，pH和接触时间）对膜的吸附行为有重要影响。最大吸附能力估计为2。在室温和pH 3下，浓度为5 wt％的沸石膜的初始浓度为10 mg / L时为17 mg / g。吸附动力学分析表明，伪二级模型描述了EBT在PVA /淀粉/上的吸附。 ZSM-5沸石膜的相关系数接近1。用Langmuir和Freundlich等温线模型分析了吸附等温线，结果表明吸附遵循Freundlich等温线模型。吸附-解吸研究表明该膜具有良好的再生能力。用Langmuir和Freundlich等温线模型分析了吸附等温线，结果表明吸附遵循Freundlich等温线模型。吸附-解吸研究表明该膜具有良好的再生能力。用Langmuir和Freundlich等温线模型分析了吸附等温线，结果表明吸附遵循Freundlich等温线模型。吸附-解吸研究表明该膜具有良好的再生能力。