The chitosan/polyvinyl Alcohol/zeolite electrospun composite nanofibrous membrane was fabricated for adsorption of methyl orange. The EDX, TGA and tensile test were carried out for the characterization of the membrane. The Young’s Modulus of the nanofibrous membranes increased by more than 100% with the addition of zeolite to chitosan/PVA. The batch adsorption tests were conducted by varying the initial concentration of methyl orange, contact time and pH of the dye solution. UV–vis results showed that most of the dye was adsorbed within 6 min. An adsorption kinetic study was carried out using the pseudo-second-order kinetic model, Lagergren-first-order model and intra particle diffusion model. The adsorption kinetics obeyed the Pseudo second order model. The adsorption mechanism was analyzed using the Langmuir and Freundlich isotherm model. The experimental data fits well with the Freundlich model. The adsorption capacity of the membrane was 153 mg/g. Adsorption capacity was decreased with increasing pH value. The resulting nanofiber became less active over methyl orange after several runs.

制备了壳聚糖/聚乙烯醇/沸石电纺复合纳米纤维膜，用于吸附甲基橙。进行了EDX，TGA和拉伸试验以表征膜。在壳聚糖/ PVA中添加沸石后，纳米纤维膜的杨氏模量增加了100％以上。通过改变甲基橙的初始浓度，接触时间和染料溶液的pH进行批量吸附测试。紫外可见结果表明，大多数染料在6分钟内被吸附。使用伪二级动力学模型，Lagergren一级模型和颗粒内扩散模型进行了吸附动力学研究。吸附动力学服从伪二阶模型。使用Langmuir和Freundlich等温线模型分析了吸附机理。实验数据与Freundlich模型非常吻合。膜的吸附容量为153mg / g。吸附容量随pH值的增加而降低。几次运行后，所得纳米纤维的活性不及甲基橙。