Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, PR China.
Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, PR China.
J Colloid Interface Sci. 2017 Jan 15;486:84-96. doi: 10.1016/j.jcis.2016.09.058. Epub 2016 Sep 28.
Three polysaccharide- graphene oxide composite materials (PS-GO) were synthesized from graphene oxide (GO) and natural polysaccharides, which compounds were tested for removal of organic dyes from aqueous solutions. These adsorbents were characterized by Fourier transform infrared spectroscopy (FT-IR), Raman spectrometer, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), N adsorption-desorption isotherms and UV-vis spectrum. The adsorption properties of PS-GO towards four organic dyes were investigated along with measured effects on adsorption by initial concentration, temperature, contact time and pH value. Resulting adsorption isotherms, thermodynamics and kinetics were analyzed systematically. In these tests, PS-GO composite materials were found to be more efficient than as-prepared GO as adsorbents for the removal of both cationic and anionic organic dyes.
三种多糖-氧化石墨烯复合材料（PS-GO）由氧化石墨烯（GO）和天然多糖合成，这些化合物被测试用于从水溶液中去除有机染料。这些吸附剂通过傅里叶变换红外光谱（FT-IR）、拉曼光谱仪、X 射线光电子能谱（XPS）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、热重分析（TGA）、N 吸附-解吸等温线和紫外可见光谱进行了表征。研究了 PS-GO 对四种有机染料的吸附性能，并通过初始浓度、温度、接触时间和 pH 值测量了对吸附的影响。系统地分析了吸附等温线、热力学和动力学。在这些测试中，发现 PS-GO 复合材料作为吸附剂，对于去除阳离子和阴离子有机染料，比原制备的 GO 更有效。
