苝酰亚胺接枝纤维素的合成与染料吸附性能

doi:10.3724/SP.J.1095.2014.30665

摘要/Abstract

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。

关键词: 纤维素, 苝, 吸附, 染料

Abstract: 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.

Key words: cellulose, perylene, adsorption, dye

中图分类号:

TQ424

黄一绥, 杨发福, 郭红玉. 苝酰亚胺接枝纤维素的合成与染料吸附性能[J]. 应用化学, DOI: 10.3724/SP.J.1095.2014.30665.

HUANG Yisui1, YANG Fafu2,3*, GUO Hongyu2. Synthesis and Properties of Cellulose Resin Crosslinked with Perylene Tetracarboxylic Diimides[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.30665.

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