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author:

Zhou, Jing (Zhou, Jing.) [1] | Lu, Qiu-Feng (Lu, Qiu-Feng.) [2] (Scholars:吕秋丰) | Luo, Jia-Jia (Luo, Jia-Jia.) [3]

Indexed by:

EI Scopus SCIE

Abstract:

In order to improve the adsorption capacity of polypyrrole, two inexpensive and renewable biological resources containing abundant functional groups were used to achieve novel polypyrrole-based composites. Three low-cost polypyrrole-based composites, polypyrrole-chitosan-lignosulfonate (PPY-CS-LS), polypyrrole-chitosan (PPY-CS) and polypyrrole-lignosulfonate (PPY-LS) were prepared via an in-situ polymerization of pyrrole monomers with chitosan (CS) and/or lignosulfonate (LS) as dispersants. PPY-CS-LS, PPY-CS and PPY-LS nanoparticles with average diameters of 50 nm, 73 nm and 213 nm, respectively, were obtained with pyrrole/oxidant molar ratio of 1:1, and the contents of CS and/or LS of 10 wt%. Selective adsorption properties of the three composites for six dyes were investigated. Results showed that PPY-CS-LS and PPY-CS composites possessed much higher selectivity for acid (anion) dyes, especially for Congo red (CR); the removal efficiencies of PPY-CS-LS and PPY-CS composites for CR were up to 99.3% and 95.4%, respectively, when the initial concentration of CR was 60 mg L-1 at the adsorption temperature of 30 degrees C. The adsorption equilibrium time for CR was 30 min, which was more rapid than those of other reported PPY-based adsorbents. The results suggested that the PPY-CS-LS composite exhibited a high adsorption performance for dyes because of the synergistic effects of amino/hydroxyl-containing functional groups from CS, sulfonic groups from LS, and nitrogen-containing functional groups from PPY chains. Furthermore, the adsorption processes were feasible and spontaneous. Therefore, a productive route to fabrication of low-cost PPY based composite nanoparticles with controllable size and high dye adsorption ability was achieved. (C) 2017 Elsevier Ltd. All rights reserved.

Keyword:

Chitosan Composite Dye adsorption Lignosulfonate Polypyrrole

Community:

  • [ 1 ] [Zhou, Jing]Fuzhou Univ, Coll Mat Sci & Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 2 ] [Lu, Qiu-Feng]Fuzhou Univ, Coll Mat Sci & Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 3 ] [Luo, Jia-Jia]Fuzhou Univ, Coll Mat Sci & Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China
  • [ 4 ] [Zhou, Jing]Fujian Prov Univ, Fuzhou Univ, Key Lab Ecomat Adv Technol, Fuzhou, Fujian, Peoples R China
  • [ 5 ] [Lu, Qiu-Feng]Fujian Prov Univ, Fuzhou Univ, Key Lab Ecomat Adv Technol, Fuzhou, Fujian, Peoples R China

Reprint 's Address:

  • 吕秋丰

    [Lu, Qiu-Feng]Fuzhou Univ, Coll Mat Sci & Engn, 2 Xueyuan Rd, Fuzhou 350116, Fujian, Peoples R China

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Source :

JOURNAL OF CLEANER PRODUCTION

ISSN: 0959-6526

Year: 2017

Volume: 167

Page: 739-748

5 . 6 5 1

JCR@2017

9 . 8 0 0

JCR@2023

ESI Discipline: ENGINEERING;

ESI HC Threshold:177

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 131

SCOPUS Cited Count: 133

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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