三维生物高分子氧化石墨烯复合凝胶对吖啶橙吸附性能的研究  

STUDY ON ADSORPTION PROPERTY OF ACRIDINE ORANGE ON THE THREE-DIMENSIONAL BIOPOLYMER GRAPHENE OXIDE COMPOSITE GEL

作　　者：王欢[1] 张萍[1] 王晓玲[1] 

机构地区：[1]咸阳师范学院化学与化工学院,陕西咸阳712000

出　　处：《精细石油化工》2016年第4期33-38,共6页Speciality Petrochemicals

基　　金：国家自然科学基金(21305117);咸阳师范学院自然科学基金(13XSYK023)资助

摘　　要：采用一种简单的共混冷冻法制备了三维生物高分子调控的氧化石墨烯复合水凝胶(3D/bio/GO/gel)。通过傅里叶红外光谱、热重分析仪、粒度分析仪和荧光显微镜对氧化石墨烯复合水凝胶进行了表征。以吖啶橙(AO)为模型,研究了3D/bio/GO/gel对AO的吸附性能,并研究了羧甲基纤维钠的加入量和pH值对吸附性能的影响,实验结果表明,3D/bio/GO/gel对AO的吸附符合二级动力学模型和Freundlich模型。The three-dimensional biopolymer graphene oxide composite gel（3D/bio/GO/gel）was prepared by a facile blending-freeze method.The 3D/bio/GO/gel was characterized by Fourier transform infrared,thermo gravimetric analyzer,zeta potential measurements and fluorescence microscope.Adsorption property of acridine orange（AO）on the 3D/bio/GO/gel was studied.The influence of amount of carboxymethyl cellulose and pH value on the adsorption capacities of 3D/bio/GO/gel was also studied.The experimental data of AO adsorption showed that it fitted well with the pseudo-secondorder kinetic model and the Freundlich isotherm.

关 键 词：氧化石墨烯 凝胶 生物高分子 吸附 吖啶橙 

分 类 号：O648.17[理学—物理化学]