苝酰亚胺接枝纤维素的合成与染料吸附性能  

Synthesis and Properties of Cellulose Resin Crosslinked with Perylene Tetracarboxylic Diimides

作　　者：黄一绥[1] 杨发福[2,3] 郭红玉[2] 

机构地区：[1]福建师范大学环境科学与工程学院,福州350007 [2]福建师范大学化学与化工学院,福州350007 [3]福建师范大学福建省高分子材料重点实验室,福州350007

出　　处：《应用化学》2014年第8期892-900,共9页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(20402002);福建省自然科学基金(2011J01031)资助项目~~

摘　　要：合成了一种新型苝酰亚胺接枝纤维素材料3,通过元素分析、红外、扫描电子显微镜等技术手段证明了其结构。染料吸附实验表明其对所测试的4种染料分子(橙黄G,亮丽春红,亚甲基蓝和结晶紫)均有较好的吸附能力,吸附容量分别达到1.04、1.21、1.14和0.96 mmol/g。吸附过程符合拟二阶动力学模型和Langmuir等温方程,吸附过程是自发放热的。在pH值2～12范围内,聚合物3的吸附性能保持基本稳定。由吸附实验结果推测,静电作用、氢键和π-π堆积均在吸附过程中有重要作用。The novel cellulose resin crosslinked with perylene tetracarboxylic diimides 3 was synthesized and its structure was characterized by elemental analysis, Fourier transform infrared spectroscopy （FT-IR） and scanning electron microscopy （SEM）. Dye adsorption experiments of polymer 3 suggested that it exhibited excellent adsorption capacities for four tested dyes [ orange G sodium salt （OG）, brilliant ponceau 5R （BP）, methylene blue（MB） and crystal violet（CV） ]. The adsorption capacities for OG, BP, MB, CV were as high as 1.04, 1.21, 1.14 and 0. 96 mmol/g, respectively. The adsorption processes obeyed a pseudo second-order model, followed the Langmuir isotherm equation, and were exothermic and spontaneous. The pH values between 2 -12 had slight influences on adsorption capacities. The adsorption results indicated that the electrostatic action, hydrogen bond and π-π stacking action played important roles in adsorption processes.

关 键 词：纤维素 苝 吸附 染料 

分 类 号：TQ424[化学工程]