A new absorbent by modifying walnut shell for the removal of anionic dye: Kinetic and thermodynamic studies

被引：186
作者：
Cao, Jia-Shun [1 ,2 ]
Lin, Jun-Xiong [2 ]
Fang, Fang [1 ,2 ]
Zhang, Ming-Ting [2 ]
Hu, Zhi-Rong [3 ]
机构：
[1] Hohai Univ, Minist Educ, Key Lab Integrated Regulat & Resource Dev Shallow, Nanjing 210098, Jiangsu, Peoples R China
[2] Hohai Univ, Coll Environm, Nanjing 210098, Jiangsu, Peoples R China
[3] EnviroSim Associates Ltd, Hamilton, ON L8P 0A1, Canada
来源：
BIORESOURCE TECHNOLOGY | 2014年 / 163卷
关键词：
Adsorption; Modified walnut shell (MWNS); Reactive brilliant red K-2BP (K-2BP); Kinetics; Thermodynamics; GRANULAR ACTIVATED CARBON; AQUEOUS-SOLUTION; CONGO RED; ADSORPTION BEHAVIOR; COIR PITH; EQUILIBRIUM; ACID; SURFACTANT; WASTE; STRAW;
D O I：
10.1016/j.biortech.2014.04.046
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
A novel, low cost and easy regeneration biosorbent, chem-modified walnut shell (MWNS), was studied to investigate its potential for removal of an anionic dye, reactive brilliant red K-2BP. The MWNS was synthesized with epichlorohydrin and diethylenetriamine as etherifying agent and crosslinking agent, respectively, and its characteristics were performed with Fourier transform infrared spectroscopy, scanning electron microscope, electron dispersive spectroscopy and thermogravimetric analysis. The influences of pH (0.5-11) and adsorbent dosage (0.1-6 g/L) on adsorption capacity of MWNS were evaluated. The maximum K-2BP adsorption capacities (Q.) calculated by best fitting model (Langmuir) were 568.18 mg/g at 313 K, which was almost 10 times than that of raw material. The adsorption kinetic was well confirmed with pseudo-second-order equation. Thermodynamic studies demonstrated adsorption process by MWNS was spontaneous and endothermic. Furthermore, the regeneration capability of MWNS implied MWNS was a cheap, excellent and promising biosorbent for K-2BP removal in azo dye wastewater treatment. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：199 / 205
页数：7
相关论文
共 35 条
  • [1] Adsorptive removal of Congo red, a carcinogenic textile dye, from aqueous solutions by maghemite nanoparticles
    Afkhami, Abbas
    Moosavi, Razieh
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2010, 174 (1-3) : 398 - 403
  • [2] Adsorption of Direct Red 80 dye from aqueous solution onto almond shells: Effect of pH, initial concentration and shell type
    Ardejani, F. Doulati
    Badii, Kh.
    Limaee, N. Yousefi
    Shafaei, S. Z.
    Mirhabibi, A. R.
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2008, 151 (2-3) : 730 - 737
  • [3] Adsorption/desorption behavior of acid orange 10 on magnetic silica modified with amine groups
    Atia, Asem A.
    Donia, Ahmed M.
    Al-Amrani, Waheeba A.
    [J]. CHEMICAL ENGINEERING JOURNAL, 2009, 150 (01) : 55 - 62
  • [4] Adsorption of Cr(VI) using thermally activated weed Salvinia cucullata
    Baral, S. S.
    Das, S. N.
    Chaudhury, G. Roy
    Swamy, Y. V.
    Rath, P.
    [J]. CHEMICAL ENGINEERING JOURNAL, 2008, 139 (02) : 245 - 255
  • [5] Efficient removal of Congo red from aqueous solutions by adsorption onto interconnected polypyrrole-polyaniline nanofibres
    Bhaumik, Madhumita
    McCrindle, Rob
    Maity, Arjun
    [J]. CHEMICAL ENGINEERING JOURNAL, 2013, 228 : 506 - 515
  • [6] Equilibrium and kinetic studies on the adsorption of surfactant, organic acids and dyes from water onto natural biopolymers
    Chang, MY
    Juang, RS
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2005, 269 (1-3) : 35 - 46
  • [7] Equilibrium and kinetic adsorption study of the adsorptive removal of Cr(VI) using modified wheat residue
    Chen, Suhong
    Yue, Qinyan
    Gao, Baoyu
    Xu, Xing
    [J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2010, 349 (01) : 256 - 264
  • [8] Removal of anionic dye Congo red from aqueous solution by raw pine and acid-treated pine cone powder as adsorbent: Equilibrium, thermodynamic, kinetics, mechanism and process design
    Dawood, Sara
    Sen, Tushar Kanti
    [J]. WATER RESEARCH, 2012, 46 (06) : 1933 - 1946
  • [9] Aminated polyacrylonitrile fibers for lead and copper removal
    Deng, SB
    Bai, RB
    Chen, JP
    [J]. LANGMUIR, 2003, 19 (12) : 5058 - 5064
  • [10] Adsorption of cesium from aqueous solution using agricultural residue - Walnut shell: Equilibrium, kinetic and thermodynamic modeling studies
    Ding, Dahu
    Zhao, Yingxin
    Yang, Shengjiong
    Shi, Wansheng
    Zhang, Zhenya
    Lei, Zhongfang
    Yang, Yingnan
    [J]. WATER RESEARCH, 2013, 47 (07) : 2563 - 2571
1234