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author:

He, Li-hong (He, Li-hong.) [1] | Lin, Ting-ting (Lin, Ting-ting.) [2] | Ling, Yi-hui (Ling, Yi-hui.) [3] | Wu, Huan-jie (Wu, Huan-jie.) [4] | Lu, Qiu-feng (Lu, Qiu-feng.) [5] (Scholars:吕秋丰)

Indexed by:

Scopus SCIE PKU CSCD

Abstract:

Polyaniline-(enzyme-hydrolyzed lignin) (PANI-Lignin) nanocomposites were prepared via an in situ polymerization from aniline by using enzyme-hydrolyzed lignin (EHL) as a dispersant. The EHL content ranging from 0 to 30 wt% was used to optimize the structure and properties of the PANI-Lignin nanocomposites. The PANI-Lignin nanocomposites were characterized by using FTIR, UV-Vis spectra, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and wide angle X-ray diffraction. Meanwhile, the silver ions adsorbability of the PANI-Lignin nanocomposites was examined by a static sorption technique. It was found that the EHL content affected greatly on the structure and properties of the PANI-Lignin nanocomposites. The typical FE-SEM and TEM images of the PANI-Lignin nanocomposite with the EHL content of 10 wt% showed that nanoparticles with an average diameter of 70 nm were obtained. The adsorption capacity of silver ions onto the PANI-Lignin nanocomposites with the EHL content of 0 wt% 30 wt% increased first, and then decreased. The maximal adsorption capacity was up to 565. 4 mg/g for the PANI-Lignin nanocomposite with the EHL content of 10 wt% and the initial silver ions concentration of 0. 05 mol/L. The product of PANI-Lignin composite with the EHL content of 10 wt% after adsorption was investigated by transmission electron microscopy and wide angle X-ray diffraction. The results showed that silver nanobelts with length up to 1 cm, width of 0. 220 similar to 4. 38 mu m and thickness of 219 similar to 311 nm were achieved after adsorption of silver ions onto the PANI-Lignin nanocomposite with the EHL content of 10 wt%. This result indicates that the PANI-Lignin nanocomposite possesses a strongly reactive adsorbability of silver ions. Therefore, the successful preparation of the PANI-Lignin nanocomposites can provide an effective method to the removal and recovery of silver ions from wastewater.

Keyword:

Enzyme-hydrolyzed lignin Nanocomposite Polyaniline Silver-ion absorbent

Community:

  • [ 1 ] [He, Li-hong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 2 ] [Lin, Ting-ting]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 3 ] [Ling, Yi-hui]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 4 ] [Wu, Huan-jie]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China
  • [ 5 ] [Lu, Qiu-feng]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China

Reprint 's Address:

  • 何丽红

    [He, Li-hong]Fuzhou Univ, Coll Mat Sci & Engn, Fuzhou 350116, Peoples R China

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Source :

ACTA POLYMERICA SINICA

ISSN: 1000-3304

CN: 11-1857/O6

Year: 2013

Issue: 3

Page: 320-326

0 . 6 3 9

JCR@2013

1 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:4

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 6

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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