制备纯壳聚糖纳米纤维膜作为有效的染料去除剂。
Fabrication of pure chitosan nanofibrous membranes as effective absorbent for dye removal.
机构信息
College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China.
Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, 266071, China; Collaborative Innovation Center for Nanomaterials & Optoelectronic Devices, College of Physics, Qingdao University, Qingdao, 266071, China.
出版信息
Int J Biol Macromol. 2018 Jan;106:768-774. doi: 10.1016/j.ijbiomac.2017.08.072. Epub 2017 Aug 14.
The pure chitosan nanofibrous membranes with average fiber diameter of 86±18, 114±17,164±28nm were successfully prepared by electrospinning. Batch adsorption experiments of using chitosan nanofibrous membranes as adsorbent to remove acid blue-113 were conducted. The adsorption capacity of 1377mg/g was achieved by the chitosan nanofibrous membrane with average fiber diameter of 86nm, which was superior to the chitosan microscale sample with the adsorption capacity of 412mg/g. The average fiber diameter and the corresponding equilibrium adsorption capacity of pure chitosan nanofibrous membranes fitted well with linear relationship in our test range. The results also showed that the adsorption followed with pseudo second-order kinetics model, and the adsorption behavior was accordance with the Langmuir isotherm model. The pure chitosan nanofibrous membrane showed promise and feasibility as an effective adsorbent for dye removal.
成功制备了平均纤维直径分别为 86±18nm、114±17nm、164±28nm 的纯壳聚糖纳米纤维膜。通过批量吸附实验，以壳聚糖纳米纤维膜作为吸附剂来去除酸性蓝 113。平均纤维直径为 86nm 的壳聚糖纳米纤维膜的吸附量达到 1377mg/g，优于平均纤维直径为 114nm 的壳聚糖纳米纤维膜（吸附量为 1147mg/g）。在我们的测试范围内，平均纤维直径和相应的平衡吸附容量与纯壳聚糖纳米纤维膜拟合良好。结果还表明，吸附过程符合准二级动力学模型，吸附行为符合朗缪尔等温吸附模型。纯壳聚糖纳米纤维膜作为一种有效的染料去除吸附剂具有很大的应用潜力和可行性。
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