Study of Methylene Blue adsorption on keratin nanofibrous membranes

被引：168

作者：

Aluigi, A. ^{[1
]}

Rombaldoni, F. ^{[2
]}

Tonetti, C. ^{[2
]}

Jannoke, L. ^{[3
]}

机构：

[1] CNR ISOF, Inst Organ Synth & Photoreact, Natl Res Council, I-40129 Bologna, Italy

[2] CNR ISMAC, Inst Macromol Studies, Natl Res Council, I-13900 Biella, Italy

[3] Politecn Torino, Dept Mat Sci & Chem Engn, I-10129 Turin, Italy

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2014年 / 268卷

关键词：

Keratin; Nanofibres; Methylene Blue; Adsorption model; METAL-IONS; DYE; EQUILIBRIUM; FILTRATION; ISOTHERM; KINETICS; SORPTION; REMOVAL; BLEND;

D O I：

10.1016/j.jhazmat.2014.01.012

中图分类号：

X [环境科学、安全科学];

学科分类号：

083001 [环境科学];

摘要：

In this work, keratin nanofibrous membranes (mean diameter of about 220 nm) were prepared by electrospinning and tested as adsorbents for Methylene Blue through batch adsorption tests. The adsorption capacity of the membranes was evaluated as a function of initial dye concentration, pH, adsorbent dosage, time and temperature. The adsorption capacity increased with increasing the initial dye concentration and pH, while it decreased with increasing the adsorbent dosage and temperature, indicating an exothermic process. The adsorption results indicated that the Langmuir isotherm fitted the experimental data better than the Freundlich and Temkin isotherm models. A mean free energy evaluated through the Dubinin-Radushkevich model of about 16 kJ mol(-1), indicated a chemisorption process which occurred by ion exchange. The kinetic data were found to fit the pseudosecond-order model better than the pseudo-first-order model. The obtained results suggest that keratin nanofibrous membranes could be promising candidates as dye adsorption filters. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：156 / 165

页数：10

共 31 条

[1]

ALLEN S.J., 2005, J U CHEM TECHNOL MET, V40, P175, DOI DOI 10.1016/J.DYEPIG.2006.01.014

[2]

Study on the structure and properties of wool keratin regenerated from formic acid [J].

Aluigi, A. ;

Zoccola, M. ;

Vineis, C. ;

Tonin, C. ;

Ferrero, F. ;

Canetti, M. .

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 2007, 41 (03) :266-273

[3]

Wool-derived keratin nanofiber membranes for dynamic adsorption of heavy-metal ions from aqueous solutions [J].

Aluigi, Annalisa ;

Corbellini, Alessandro ;

Rombaldoni, Fabio ;

Mazzuchetti, Giorgio .

TEXTILE RESEARCH JOURNAL, 2013, 83 (15) :1574-1586

[4]

Study on the Adsorption of Chromium (VI) by Hydrolyzed Keratin/Polyamide 6 Blend Nanofibres [J].

Aluigi, Annalisa ;

Tonetti, Cinzia ;

Vineis, Claudia ;

Varesano, Alessio ;

Tonin, Claudio ;

Casasola, Raffaella .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2012, 12 (09) :7250-7259

[5]

Wool Keratin Nanofibres for Copper(II) Adsorption [J].

Aluigi, Annalisa ;

Tonetti, Cinzia ;

Vineis, Claudia ;

Tonin, Claudio ;

Casasola, Raffaella ;

Ferrero, Franco .

JOURNAL OF BIOBASED MATERIALS AND BIOENERGY, 2012, 6 (02) :230-236

[6]

Isotherm, thermodynamic, kinetics and adsorption mechanism studies of methyl orange by surfactant modified silkworm exuviae [J].

Chen, Hao ;

Zhao, Jie ;

Wu, Junyong ;

Dai, Guoliang .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 192 (01) :246-254

[7]

Photocatalytic TiO2 films and membranes for the development of efficient wastewater treatment and reuse systems [J].

Choi, Hyeok ;

Stathatos, Elias ;

Dionysiou, Dionysios D. .

DESALINATION, 2007, 202 (1-3) :199-206

[8]

Behaviors and mechanisms of copper adsorption on hydrolyzed polyacrylonitrile fibers [J].

Deng, SB ;

Bai, RB ;

Chen, JP .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2003, 260 (02) :265-272

[9]

Adsorption of chrorniurn(VI) on low cost adsorbents derived from agricultural waste material: A comparative study [J].

Dubey, Shashi Prabha ;

Gopal, Krishna .

JOURNAL OF HAZARDOUS MATERIALS, 2007, 145 (03) :465-470

[10]

Study of the sorption of divalent metal ions on to peat [J].

Ho, YS ;

McKay, G ;

Wase, DAJ ;

Forster, CF .

ADSORPTION SCIENCE & TECHNOLOGY, 2000, 18 (07) :639-650

← 1 2 3 4 →