用于吸附 Co 离子的复合壳聚糖-葡萄糖水凝胶的构建。
Construction of composite chitosan-glucose hydrogel for adsorption of Co ions.
机构信息
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China.
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China.
出版信息
Int J Biol Macromol. 2019 Oct 15;139:213-220. doi: 10.1016/j.ijbiomac.2019.07.202. Epub 2019 Jul 30.
Glucose and chitosan are compounded on a hydrogel (GC hydrogel) by an initiator and a crosslinking agent, and GC hydrogel are applied to treat Co in wastewater. The samples were characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). In the study of adsorption process, the influence of five factors on the adsorption process was studied. On this basis, the adsorption thermodynamics, kinetics and adsorption mechanism of isotherm were discussed. The results showed that the adsorption capacities of GC hydrogels for Co 202mgg at 20°C, pH=7 and adsorbent dosage is 0.01g. The study shows that the adsorption of heavy metal ions by GC hydrogel adsorbent is a single molecule chemisorption of the spontaneous process. In addition, GC hydrogel adsorbent has good cyclic stability.
葡萄糖和壳聚糖在引发剂和交联剂的作用下复合在水凝胶（GC 水凝胶）上，GC 水凝胶用于处理废水中的 Co。通过傅里叶变换红外光谱（FT-IR）、扫描电子显微镜（SEM）和热重分析（TGA）对样品进行了表征。在吸附过程的研究中，研究了五个因素对吸附过程的影响。在此基础上，讨论了吸附热力学、动力学和吸附等温线的吸附机制。结果表明，GC 水凝胶在 20°C、pH=7 和吸附剂用量为 0.01g 时对 Co202mgg 的吸附容量。研究表明，GC 水凝胶吸附剂对重金属离子的吸附是自发的单分子化学吸附过程。此外，GC 水凝胶吸附剂具有良好的循环稳定性。
Zotero 插件