聚苯胺-木质素磺酸纳米复合物的制备及吸附性能

doi:10.3969/j.issn.0438-1157.2013.06.048

化工学报 ›› 2013, Vol. 64 ›› Issue (6): 2264-2269.DOI: 10.3969/j.issn.0438-1157.2013.06.048

• 材料化学工程与纳米技术 • 上一篇下一篇

聚苯胺-木质素磺酸纳米复合物的制备及吸附性能

杨军, 何志伟, 吕秋丰

福州大学材料科学与工程学院,福建福州 350116

收稿日期:2012-09-06 修回日期:2012-11-30 出版日期:2013-06-05 发布日期:2013-06-05
通讯作者: 吕秋丰
作者简介:杨军(1988—),男,硕士研究生。
基金资助:
福建省自然科学基金项目(2012J01201)。

Preparation and adsorption property of polyaniline-lignosulfonate nanocomposite

YANG Jun, HE Zhiwei, LV Qiufeng

School of Materials Science and Engineering, Fuzhou University, Fuzhou 350116, Fujian, China

Received:2012-09-06 Revised:2012-11-30 Online:2013-06-05 Published:2013-06-05
Supported by:
supported by the Natural Science Foundation of Fujian Province(2012J01201).

摘要/Abstract

摘要： 以木质素磺酸(LS)为分散剂,采用静态聚合法制备了聚苯胺-木质素磺酸(PANI-LS)纳米复合物。通过扫描电子显微镜、透射电子显微镜、红外光谱、紫外可见光谱和广角X射线衍射对纳米复合物的形貌、结构和性能进行了表征。同时,研究了该纳米复合物对银离子的吸附性能。在银离子初始浓度为0.03 mol·L^-1时,PANI-LS纳米复合物对银离子的最大吸附容量为500 mg·g^-1。对吸附后纳米复合物的透射电子显微镜和广角X射线衍射的研究表明,PANI-LS纳米复合物对银离子具有还原作用,吸附后纳米复合物表面有直径为2～7 nm的单质银纳米粒子生成。

关键词: 聚苯胺, 木质素磺酸, 纳米复合物, 银离子吸附, 还原

Abstract: Polyaniline-lignosulfonate (PANI-LS) nanocomposite was prepared via an unstirred polymerization by using lignosulfonate (LS) as dispersant.The morphology, structure and properties of the PANI-LS nanocomposite were characterized by using scanning electron microscopy, transmission electron microscopy, FTIR, UV-vis spectra and wide angle X-ray diffraction.Moreover, the silver ions adsorbability of the PANI-LS nanocomposite was examined.The maximal sorption capacity of silver ions onto PANI-LS nanocomposite was up to 500 mg·g^-1 at initial silver ion concentration of 0.03 mol·L^-1.The product of PANI-LS nanocomposite after sorption was investigated by transmission electron microscopy and wide angle X-ray diffraction.The results showed that silver nanoparticles with diameters of 2—7 nm were homogeneously dispersed on the surface of the PANI-LS nanocomposite after sorption.This indicated that the PANI-LS nanocomposite possessed reactive adsorbability for silver ions.

Key words: polyaniline, lignosulfonate, nanocomposite, silver-ions sorption, reduction

中图分类号:

TQ317
TQ319

杨军, 何志伟, 吕秋丰. 聚苯胺-木质素磺酸纳米复合物的制备及吸附性能[J]. 化工学报, 2013, 64(6): 2264-2269.

YANG Jun, HE Zhiwei, LV Qiufeng. Preparation and adsorption property of polyaniline-lignosulfonate nanocomposite[J]. CIESC Journal, 2013, 64(6): 2264-2269.

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聚苯胺-木质素磺酸纳米复合物的制备及吸附性能

Preparation and adsorption property of polyaniline-lignosulfonate nanocomposite

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