Electrochemical characterization and thermodynamic tendency of β-Lactoglobulin adsorption on 3D printed stainless steel

M. J.K. Lodhi, K. M. Deen, Zia Ur Rahman, Ameeq Farooq, Waseem Haider

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The electrochemical behavior of 3D printed 316L stainless steel (3DPSS) was investigated in phosphate buffer saline (PBS), containing β-Lactoglobulin (BLG). The charge transfer resistance (Rct) was decreased from 629 to 40 k Ω cm2 with an increase in temperature from 293 to 323 K in BLG free electrolyte. At each temperature, the exponential decrease in the polarization resistance (Rp) of 3DPSS was a function of BLG concentration. The significant decrease in activation energy ‘Ea’ (∼15 kJ mol−1) upon adding 0.06 g/L BLG attributed to the charge transfer process involved in the adsorption process. The results were further used to quantify the thermodynamic parameters.

Original languageEnglish
Pages (from-to)180-187
Number of pages8
JournalJournal of Industrial and Engineering Chemistry
Volume65
DOIs
StatePublished - Sep 25 2018

Keywords

  • 3D printed 316L stainless steel
  • Electrochemical
  • Polarization resistance
  • Thermodynamic parameters
  • β-Lactoglobulin

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