壳聚糖/石墨烯纳米片复合球的简易制备及其对水溶液中酸性染料的高效吸附。
Simple fabrication of Chitosan/Graphene nanoplates composite spheres for efficient adsorption of acid dyes from aqueous solution.
机构信息
School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi, Liaoning Province 117004, PR China.
School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi, Liaoning Province 117004, PR China; School of Resource and Environment Project, Wuhan University of Technology, Wuhan, Hubei Province 430070, PR China.
出版信息
Int J Biol Macromol. 2018 Jun;112:1048-1054. doi: 10.1016/j.ijbiomac.2018.02.074. Epub 2018 Feb 13.
A facile method for the fabrication of crosslinked chitosan/graphene nanoplates composite sphere (CS/GNPs) was presented. The obtained samples were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopic (XPS) and thermogravimetric analysis (TGA). The adsorption activities of CS/GNPs for methyl orange (MO) and acid red 1 (AR1) were evaluated such as the effect of pH and GNPs content, as well as adsorption kinetics and isotherms. In view of practical, the reusability of CS/GNPs was also tested. The resulting adsorption capacity for MO is 230.91mgg and 132.94mgg for AR1, respectively. After saturated adsorption, CS/GNPs can be efficiently regenerated and reused with little uptake loss. Therefore, CS/GNPs is the apromising adsorbent with non-toxic, efficient, low-cost and easy to prepare for the dye removal.
一种制备交联壳聚糖/石墨烯纳米片复合球（CS/GNPs）的简便方法。通过透射电子显微镜（TEM）、X 射线衍射（XRD）、X 射线光电子能谱（XPS）和热重分析（TGA）对所得样品进行了表征。考察了 pH 值和 GNPs 含量、吸附动力学和吸附等温线等因素对 CS/GNPs 对甲基橙（MO）和酸性红 1（AR1）的吸附活性。鉴于实际应用，还测试了 CS/GNPs 的重复使用性。MO 的吸附容量分别为 230.91mgg 和 AR1 的 132.94mgg。饱和吸附后，CS/GNPs 可以通过高效再生和重复使用，几乎没有吸附容量损失。因此，CS/GNPs 是一种很有前途的吸附剂，具有无毒、高效、低成本和易于制备等优点，可用于染料去除。
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