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.
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。
