Polymeric blend nanocomposite membranes for ethanol dehydration-effect of morphology and membrane-solvent interactions

被引：50

作者：

Magalad, Veeresh T. ^{[1
]}

Gokavi, Gavisiddappa S. ^{[5
]}

Ranganathaiah, C. ^{[2
]}

Burshe, Mahesh H. ^{[3
]}

Han, Changseok ^{[4
]}

Dionysiou, Dionysios D. ^{[4
]}

Nadagouda, Mallikarjuna N. ^{[5
]}

Aminabhavi, Tejraj M. ^{[5
]}

机构：

[1] Tontadarya Coll Engn, Dept Chem, Gadag 582101, India

[2] Univ Mysore, Dept Phys, Mysore 570006, Karnataka, India

[3] Indian Tobacco Co, R&D Ctr, Peenya Ind Area, Bangalore 560058, Karnataka, India

[4] Univ Cincinnati, Environm Engn & Sci Program, Sch Energy Environm Biol & Med Engn, Cincinnati, OH 45221 USA

[5] Shivaji Univ, Dept Chem, Kolhapur 416004, Maharashtra, India

来源：

JOURNAL OF MEMBRANE SCIENCE | 2013年 / 430卷

关键词：

Pervaporation; Phosphotungstic acid; NaAlg-PVP blend; Ethanol-water mixture; MIXED MATRIX MEMBRANES; SODIUM ALGINATE; PERVAPORATION DEHYDRATION; COMPOSITE MEMBRANES; HYBRID MEMBRANES; ACETIC-ACID; SEPARATION; DIFFUSION; MIXTURES; ESTERIFICATION;

D O I：

10.1016/j.memsci.2012.12.002

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Nanocomposite membranes (NCMs) of sodium alginate/poly(vinyl pyrrolidone) blend polymers incorporated with varying concentrations of phosphotungstic acid (H3PW12O40) (PWA) nanoparticles have been prepared and used in ethanol dehydration by the pervaporation (PV) technique. Effects of filler concentration, temperature and feed water composition have been investigated to understand the PV performance of the membranes in terms of separation factor and flux. Surface morphology/energy, free volume, collective and complex range of interactions between the permeants and membranes as well as membrane swelling were studied. Arrhenius activation parameters for diffusion and permeation have been estimated. Membranes were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), and environmental emission scanning electron microscopy (ESEM). Size of the PWA nanoparticles was determined by a particle size analyzer. Surface free energies calculated from contact angles as well as free volume and fractional free volume parameters obtained from positron annihilation lifetime spectroscopy (PALS) have been used to understand the membrane transport phenomenon in terms of membrane-permeate interactions. Published by Elsevier B.V.

引用

页码：321 / 329

页数：9

共 32 条

[1] Aluminum-rich zeolite beta incorporated sodium alginate mixed matrix membranes for pervaporation dehydration and esterification of ethanol and acetic acid [J].

Adoor, Susheelkumar G. ;

Manjeshwar, Lata S. ;

Bhat, Santoshkumar D. ;

Aminabhavi, Tejraj M. .

JOURNAL OF MEMBRANE SCIENCE, 2008, 318 (1-2) :233-246

[2] Activated Charcoal-Loaded Composite Membranes of Sodium Alginate in Pervaporation Separation of Water-Organic Azeotropes [J].

Aminabhavi, T. M. ;

Patil, M. B. ;

Bhat, S. D. ;

Halgeri, A. B. ;

Vijayalakshmi, R. P. ;

Kumar, P. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 113 (02) :966-975

[3] Poly (vinyl alcohol)/cellulose nanocomposite pervaporation membranes for ethanol dehydration [J].

Bai, Lu ;

Qu, Ping ;

Li, Shuai ;

Gao, Yuan ;

Zhang, Liping .

ADVANCED MATERIAL SCIENCE AND TECHNOLOGY, PTS 1 AND 2, 2011, 675-677 :383-386

[4] Quantitative equivalence between polymer nanocomposites and thin polymer films [J].

Bansal, A ;

Yang, HC ;

Li, CZ ;

Cho, KW ;

Benicewicz, BC ;

Kumar, SK ;

Schadler, LS .

NATURE MATERIALS, 2005, 4 (09) :693-698

[5] Microporous alumino-phosphate (AlPO4-5) molecular sieve-loaded novel sodium alginate composite membranes for pervaporation dehydration of aqueous-organic mixtures near their azeotropic compositions [J].

Bhat, S. D. ;

Mallikarjuna, N. N. ;

Aminabhavi, T. M. .

JOURNAL OF MEMBRANE SCIENCE, 2006, 282 (1-2) :473-483

[6] Pervaporation-Aided Dehydration and Esterification of Acetic Acid with Ethanol Using 4A Zeolite-Filled Cross-linked Sodium Alginate-Mixed Matrix Membranes [J].

Bhat, Santoshkumar D. ;

Aminabhavi, Tejraj M. .

JOURNAL OF APPLIED POLYMER SCIENCE, 2009, 113 (01) :157-168

[7]

Brandrup J., 1999, Polymer Handbook, VII

[8] COHESIVE ENERGY DENSITIES OF POLYMERS .1. COHESIVE ENERGY DENSITIES OF RUBBERS BY SWELLING MEASUREMENTS [J].

BRISTOW, GM ;

WATSON, WF .

TRANSACTIONS OF THE FARADAY SOCIETY, 1958, 54 (11) :1731-1741

[9]

Chan C.M., 1994, Polymer Surface modification and characterization

[10]

Dogan M, 1999, J APPL POLYM SCI, V74, P2848, DOI 10.1002/1097-4628(19991213)74:12<2848::AID-APP8>3.0.CO

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