应用化学

• 研究论文 • 上一篇    下一篇

苝酰亚胺接枝纤维素的合成与染料吸附性能

黄一绥1,杨发福2,3*,郭红玉2   

  1. (福建师范大学1.环境科学与工程学院;2.化学与化工学院;3.福建省高分子材料重点实验室 福州 350007)
  • 收稿日期:2013-12-30 修回日期:2014-03-11 出版日期:2014-08-10 发布日期:2014-08-10
  • 通讯作者: 杨发福,教授; Tel:0591-83466942; Fax:0591-83465225; E-mail:yangfafu@fjnu.edu.cn; 研究方向:超分子化学
  • 基金资助:
    国家自然科学基金(20402002)福建省自然科学基金(2011J01031)资助项目

Synthesis and Properties of Cellulose Resin Crosslinked with Perylene Tetracarboxylic Diimides

HUANG Yisui1, YANG Fafu2,3*, GUO Hongyu2   

  1. (1.College of Environmental Science and Engineering;
    2.College of Chemistry and Chemical Engineering;
    3.Fujian Key Laboratory of Polymer Materials,Fujian Normal University,Fuzhou,350007,China)
  • Received:2013-12-30 Revised:2014-03-11 Published:2014-08-10 Online:2014-08-10

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

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