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author:

Liu, Ming-Hua (Liu, Ming-Hua.) [1] | Huang, Jian-Hui (Huang, Jian-Hui.) [2]

Indexed by:

EI Scopus SCIE

Abstract:

A novel spherical sulfonic lignin adsorbent, denoted as SSLA, was adopted to removal and recover the cationic dyes from aqueous solutions, e.g., Cationic Red GTL, Cationic Turquoise GB, and Cationic Yellow X-5GL, and various affecting factors were optimized. It was found that the adsorption of cationic dyes on the adsorbent was initially concentration- and temperature-dependent, and followed both the Freundlich and Langmuir isothermal adsorption. The positives values for AH indicated that the process was enclothermic. The breakthrough adsorption capacities for GTL, GB, and X-5GL were 536.0, 550.0, and 582.0 mg/g, respectively, which prevailed over the commercial powdered activated carbon and strongly acidic cation-exchange resin R732 evidently. Additionally, the maximum recovery percentage could reach 93.2, 97.1, and 96.5% separately for GTL, GB, and X-5GL, when a mixture of 3.0 mol/L HCl and alcohol with the volume ratio of 1: 4 was adopted as eluant. Moreover, the results of the mobile desorption and recovery tests indicated that the maximum concentrations of GTL, GB, and X-5GL in the eluants, could reach 13,108, 13,980, and 13,520 mg/L, respectively. Only 6.3, 5.0, and 4.6% of adsorption capacities for GTL, GB, and X-5GL decreases individually after 20 replicates of adsorption and desorption. (c) 2006 Wiley Periodicals, Inc.

Keyword:

adsorption adsorption isotherm cationic dye lignin

Community:

  • [ 1 ] Fuzhou Univ, Coll Environm & Resources, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 刘明华

    [Liu, Ming-Hua]Fuzhou Univ, Coll Environm & Resources, Fuzhou 350002, Peoples R China

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Source :

JOURNAL OF APPLIED POLYMER SCIENCE

ISSN: 0021-8995

Year: 2006

Issue: 4

Volume: 101

Page: 2284-2291

1 . 3 0 6

JCR@2006

2 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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