欢迎访问《林产化学与工业》,

林产化学与工业 ›› 2022, Vol. 42 ›› Issue (2): 87-92.doi: 10.3969/j.issn.0253-2417.2022.02.012

• 研究报告 • 上一篇    下一篇

纳米纤维素/蒙脱土复合材料的制备及性能研究

杨宇佳, 罗晓静, 欧兰波, 檀淑君, 杨晨, 林兆云()   

  1. 齐鲁工业大学(山东省科学院)生物基材料与绿色造纸国家重点实验室, 制浆造纸科学与技术教育部重点实验室, 山东 济南 250353
  • 收稿日期:2021-01-27 出版日期:2022-04-28 发布日期:2022-05-06
  • 通讯作者: 林兆云 E-mail:linzhaoyun123@126.com
  • 作者简介:林兆云, 博士, 讲师, 研究方向为纳米纤维素的制备与改性、乳液聚合及废水处理; E-mail: linzhaoyun123@126.com
    杨宇佳(2000-), 女, 安徽毫州人, 本科生, 主要从事纳米纤维素的制备与改性的研究工作
  • 基金资助:
    大学生创新创业训练项目(xj201910431114);国家自然科学基金资助项目(3190126);科教产融合试点工程项目(2020KJC-ZD4)

Prerparation and Performance of Composite of Cellulose Nano-fiber(CNF)/Montmorillonite(MMT)

Yujia YANG, Xiaojing LUO, Lanbo OU, Shujun TAN, Chen YANG, Zhaoyun LIN()   

  1. State Key Laboratory of Biobased Materials and Green Papermaking, Key Lab. of Pulp & Paper Science and Technology of Education Ministry of China, Qilu University of Technology(Shandong Academy of Sciences), Jinan 250353, China
  • Received:2021-01-27 Online:2022-04-28 Published:2022-05-06
  • Contact: Zhaoyun LIN E-mail:linzhaoyun123@126.com

摘要:

以纳米纤维素(CNF)为原料,与十六烷基三甲基溴化铵(CTAB)改性的蒙脱土(MMT)进行插层复配制备复合材料CTAB@MMT-CNF。探讨了CTAB用量对CTAB@MMT-CNF结构性能的影响,表征并分析了CTAB@MMT-CNF的红外光谱、微观形貌和热稳定性,考察了复合材料及其用量、被处理对象亚甲基蓝(MB)浓度对复合材料去除亚甲基蓝效果的影响。研究结果表明:CTAB的用量会影响CNF与MMT的复配情况,当CTAB用量为20%时,能插入MMT层间发生复配的CNF明显增多。通过优化发现,CTAB用量为15%,CTAB@MMT-CNF用量为25 mg, 10 mL质量浓度为600 mg/L的亚甲基蓝时,去除效果最好,去除率为99.94%,反应过程符合准一级速率方程,表观常数为0.025 7 s-1,相关系数为0.965 3。

关键词: 十六烷基三甲基溴化铵, 插层复配, 去除效率, 亚甲基蓝

Abstract:

Cellulose nanofiber(CNF) was used as raw material, and then was blended with the modified montmorillonite(MMT) by cetyltrimethylammonium bromide(CTAB) to prepare CTAB@MMT-CNF. The effect of CTAB dosage on the properties of CTAB@MMT-CNF was explored, and CTAB@MMT-CNF was characterized by FT-IR, morphology analysis and thermal gravimetric analysis. Subsequently, the effects of composite and their dosage, and the concentration of methylene blue on the removal performance of methylene blue were investigated. The results showed that the dosage of CTAB would affect the compounding of CNF and CTAB@MMT, and more CNF would insert into the interlayer structure of MMT with 20% CTAB. It was also found that CTAB@MMT-CNF showed the best removal performance and the highest removal efficiency of methylene blue of 99.94% when 10 mL methylene blue solution(600 mg/L) was treated with 25 mg CTAB@MMT-CNF, in which the dosage of CTAB was 15%. Otherwise, this process was accorded with pseudo first order rate equation, its apparent constant was 0.025 7 s-1 and the correlation coefficient was 0.965 3.

Key words: cetyltrimethylammonium bromide, intercalation modification, removal efficiency, methylene blue

中图分类号: