Purification of drinking water from dissolved Bisphenol A (BPA) using zinc oxide nanoparticles

Document Type : Original Research

Authors

1 Department of Chemistry, Faculty of Science, South Valley University, Qena, Egypt.

2 Department of Chemistry, Faculty of Science, South Valley University, Qena 83523, Egypt

3 Metallurgy & Material Science Tests (MMST) Lab, Department of Physics, Faculty of Science, South Valley University, Qena83523, Egypt

Abstract

The goal of this research is to study the potential of ZnO nanoparticles as an alternative material for the removal of bisphenol A (BPA) that can be used in ceramic membrane. To safeguard water from organic pollutants like BPA, one of the SDGs' objectives was to ensure access to clean drinking water (goal 6). This research has been studied of various factors for removal of BPA, including contact time, pH, temperature, initial BPA levels, and ZnO NPs dosage. The removal of BPA onto ZnO NPs matched well with the Langmuir, Freundlich, and Temkin isotherm models. The maximum removal efficiency under optimum conditions was achieved 85%. The kinetic data fitted well the pseudo-second order model than other models. The phenomenon for removal of BPA was a spontaneous process and showed the endothermic nature. Thermodynamic, kinetics and isotherm data indicate that more than one mechanism was applied for removal of BPA from water.

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Aswan University Journal of Environmental Studies
Volume 4, Issue 1
Special Issue title: Impact of Climatic Change on Surface Water ecosystem and its biodiversity
February 2023
Pages 48-68

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