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Nanostructured Membranes Raise Possibility for Purification of Gases

News Date : 2016-07-17 Visit : 518

Iranian researchers produced nanostructured membranes with high efficiency in separation of gases

TEHRAN (INIC)- Iranian researchers from University of Tehran produced nanostructured membranes with high efficiency in separation of gases.


The membranes have direct applications in the development of gas separation industries, specially separation of helium.


Separation of gases has become one of the main concerns in preservation of the environment in various industries. Membrane processes are among the most economic methods for the separation of gases. However, the efficiency and selectivity of membranes are among the important challenges in membrane process, which require new systems.


This research tries to produce new membranes with higher efficiency for the separation of gases. Therefore, a matrix of polyvinylidene difluoride (PVDF) was selected due to its natural properties such as compatibility with other components. In addition, a wide range of appropriate membranes have been produced by using metal oxide nanoparticles to separate gas mixtures.


In this research, a polymeric membrane with efficiency was produced based on metal-organic frameworks to separate gas mixtures, including methane/carbon dioxide (CO2/CH4) by obtaining an optimum method for chemical modification of polyvinylidene difluoride.


Results of the research have been published in Industrial & Engineering Chemistry Research, vol. 54, 2015, pp. 12124-12134.