Iranian Polymer Journal

, Volume 28, Issue 4, pp 301–312 | Cite as

Antifouling behaviour of PVDF/TiO2 composite membrane: a quantitative and qualitative assessment

  • Zeenat ArifEmail author
  • Naresh Kumar Sethy
  • Lata Kumari
  • Pradeep Kumar Mishra
  • Bhawna Verma
Original Research


The composite membranes of PVDF/TiO2 were prepared by a phase-inversion technique. Different amounts of TiO2 with respect to the weight of the polymer were incorporated in the casting solution to study qualitatively and quantitatively the antifouling property of the membrane. The membrane morphology was studied using a high-resolution scanning electron microscopy and atomic force microscopy, whereas the crystalline nature was studied using X-ray diffraction method. The interfacial interactions between foulants and TiO2 immobilized membranes were also evaluated using the extended Derjaguin–Landau–Verwey–Overbeek (XDLVO) approach. The XDLVO theory revealed an increase in repulsive interactive energy barrier with an increase in TiO2 loading, thus causing to improve the antifouling property of the membrane. Intercalation of TiO2 nanoparticles efficiently improved the porosity and wettability of the polymeric membranes, which could be confirmed by the contact angle analyzer analysis. The modified PVDF membranes exhibited excellent antimicrobial properties against Gram-negative Escherichia coli as confirmed from the halo zone and activity test. The permeation experimental results also showed high protein rejection of bovine serum albumin and humic acid (foulant) for membranes with optimum TiO2 loading of 0.01 g/g of PVDF polymer. However, at a concentration of 0.02 g TiO2/g of PVDF a negative effect on the membrane property was observed due to the former non-uniform distribution.


Hydrophilicity Fouling Permeability Membrane Antibacterial 



The authors acknowledge Central Instrument Facility, IIT (BHU) for characterization facility.

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interest.


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Copyright information

© Iran Polymer and Petrochemical Institute 2019

Authors and Affiliations

  1. 1.Department of Chemical Engineering and TechnologyIndian Institute of Technology (BHU)VaranasiIndia
  2. 2.Department of ChemistryIndian Institute of Technology (BHU)VaranasiIndia

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