化工进展 ›› 2016, Vol. 35 ›› Issue (05): 1466-1470.DOI: 10.16085/j.issn.1000-6613.2016.05.29

• 工业催化 • 上一篇    下一篇

原位还原制备滤纸载纳米银粒子复合材料及其催化特性

吴贺君1, 董知韵1, 孙勋文2, 胡彪1, 李庆业2, 刘韫滔1   

  1. 1. 四川农业大学食品学院, 四川 雅安 625000;
    2. 四川大学高分子材料工程国家重点实验室, 四川 成都 610065
  • 收稿日期:2015-11-25 修回日期:2016-01-12 出版日期:2016-05-05 发布日期:2016-05-05
  • 作者简介:贺君(1985-),男,博士,讲师,从事高分子及其复合材料相关研究。E-mail hejunwu520@163.com。
  • 基金资助:
    高分子材料工程国家重点实验室开放课题基金(sklpme2014-4-34)及四川省教育厅自然科学类一般项目(16ZB0057)。

In situ reduction of silver nanoparticles on filter paper and their catalytic activity

WU Hejun1, DONG Zhiyun1, SUN Xunwen2, HU Biao1, LI Qingye2, LIU Yuntao1   

  1. 1. College of Food Science, Sichuan Agricultural University, Ya'an 625000, Sichuan, China;
    2. State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, Sichuan, China
  • Received:2015-11-25 Revised:2016-01-12 Online:2016-05-05 Published:2016-05-05

摘要: 基于绿色化学的角度,直接以滤纸(FP)为基底材料,在碱性条件下无需外加还原剂和稳定剂,原位还原得到负载纳米银(AgNPs)的AgNPs/FP复合材料。通过扫描电子显微镜(SEM)、X射线电子能谱仪(EDS)、热重分析仪(TGA)和紫外-可见(UV-vis)分光光度计等对复合材料的形貌、组成和催化性能进行表征。研究结果表明,Ag+被还原为AgNPs后致密又均匀地负载于滤纸表面上,所制得的AgNPs/FP复合材料中纳米银呈球形、尺寸均一且团聚较少。AgNPs/FP复合材料对对硝基苯酚(4-NP)的还原具有较好的催化活性,且易于回收再利用。

关键词: 纳米粒子, 银, 滤纸, 纤维素, 还原, 催化

Abstract: The silver nanoparticles/filter paper (AgNPs/FP) composites were successfully prepared via in-situ reduction by employing filter paper as both reducer and carrier in alkaline conditions based on green chemistry. The morphology, composition, and catalytic properties of the prepared AgNPs/FP composites were characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), thermogravimetric analysis (TGA) and UV-visible (UV-vis) spectrophotometry. SEM images showed the spherical AgNPs evenly distributed on the surface of the filter paper, which was testified further by UV-vis spectroscopy, EDS and TGA. In addition, the obtained AgNPs/FP composite exhibited good catalytic activity for the reduction of 4-nitrophenol (4-NP) and could be recycled easily.

Key words: nanoparticles, silver, filter paper, cellulose, reduction, catalysis

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