Volume 5, No. 1, March 2017
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Experimental Study and Simulation of Concentration of Hydrogen Peroxide by Pervaporation Using Nafion®-Silica Nanocomposite Membranes

Nguyen Huu Hieu 1, 2
1. Faculty of Chemical Engineering, School of Semiconductor and Chemical Engineering, Chonbuk National University, Jeonju, Jeonbuk 561-756, Republic of Korea.
2. Key Laboratory of Chemical Engineering and Petroleum Processing, , Ho Chi Minh City University of Technology, VNU-HCMC, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City.
Abstract: Nafion®-silica nanocomposite membranes were used to concentrate hydrogen peroxide by pervaporation to aid the development of improved membranes. Membranes were fabricated by casting Nafion® solution in dimethylformamide with colloidal silica. Their morphologies and thermomechanical properties were characterized with respect to silica content (5–20 wt%) by transmission electron microscopy, scanning electron microscopy, and dynamic mechanical analysis. Pervaporation was carried out using a feed solution of 70 wt% hydrogen peroxide at 30 °C and a permeate pressure of 0.5 Torr; the membranes were assessed with respect to permeate flux and selectivity. Permeate flux decreased slightly from 6.189 to 5.750 mol/(h∙m2) with increasing silica content; selectivity was increased by 60% compared with recast Nafion® without silica. Parameters for batch-type pervaporation process design, such as the retentate hydrogen peroxide concentration and the yield, were calculated using a mathematical model developed based on a solution-diffusion mechanism. The simulation results demonstrated that the modified Nafion® membranes should require smaller areas and improve pervaporation.
 
Keywords: Hydrogen peroxide, modeling, nafion®, pervaporation, silica, simulation.
Cite:Nguyen Huu Hieu, "Experimental Study and Simulation of Concentration of Hydrogen Peroxide by Pervaporation Using Nafion®-Silica Nanocomposite Membranes," International Journal of Materials Science and Engineering, Vol. 5, No. 1, pp. 1-15, March 2017. doi: 10.17706/ijmse.2017.5.1.1-15

General Information

ISSN: 2315-4527
Editor-in-Chief: Prof. Emeritus Dato' Dr. Muhammad Yahaya
DOI: 10.17706/ijmse
Abstracting/ Indexing: Ulrich's Periodicals Directory, Google Scholar, Crossref, Engineering & Technology Digital Library and Electronic Journals Digital Library
E-mail: ijmse@iap.org