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Preparation of a new class of whey-stabilized ZnO nanoparticles for degradation of bisphenol A in water.

Mohapatra, Debabandya P.; Brar, Satinder Kaur; Picard, Pierre; Tyagi, Rajeshwar Dayal (2013). Preparation of a new class of whey-stabilized ZnO nanoparticles for degradation of bisphenol A in water. Science of Advanced Materials , vol. 5 , nº 1. p. 57-63. DOI: 10.1166/sam.2013.1431.

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Résumé

Degradation of bisphenol A (BPA), an endocrine disruptor from water has recently attracted great interest. The primary objective of this work was to prepare ZnO nanoparticles and to study the effect of these nanoparticles on changing the viscosity and zeta potential value of water and simultaneous degradation of BPA. Whey material was used as a dispersant for the preparation of nanoparticles. Analysis of BPA in water was carried out using the ultrafast method (15 s per sample) based on the Laser Diode Thermal Desorption/Atmospheric Pressure Chemical Ionization (LDTD/APCI) coupled to tandem Mass Spectrometry (MS/MS). The whey stabilized nanoparticles displayed lower agglomeration with higher BPA degradation power than those prepared without a stabilizer. The sample with whey stabilized nanoparticle showed lower viscosity and higher zeta potential value in the medium leading to higher degradation of BPA as compared to non-stabilized one. The whey stabilized ZnO nanoparticles were able to degrade 100% BPA from the medium as compared to 60% with the nonstabilized one. The application of a stabilizer for ZnO nanoparticles may substantially enhance the performance of nanoparticles for environmental applications.

Type de document:
Mots-clés libres: bisphenol A; viscosity; water; zeta potential; ZnO nanoparticles
Centre: Centre Eau Terre Environnement
Date de dépôt: 06 déc. 2016 21:31
Dernière modification: 16 déc. 2016 14:21
URI: http://espace.inrs.ca/id/eprint/3475

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