Master Thesis : Photocatalytic coatings for water purification from antibiotic contaminants (including an introduction to research methodology)

Abstract

The increasing presence of antibiotic contaminants in aquaculture wastewater poses significant risks to environmental and public health, particularly in intensive shrimp farming systems. This thesis focuses on developing photocatalytic coatings for water purification as part of the REMAOP project, which aims to implement sustainable and effective remediation technologies in shrimp ponds in Vietnam. Titanium dioxide (TiO₂) is a well-established photocatalyst due to its stability, low cost, and strong oxidative power; however, its efficiency in practical applications is often limited by low surface activity and difficulty in immobilization. The objective of this thesis is to design and fabricate a TiO₂-based photocatalytic coating capable of enhancing photocatalytic activity while ensuring strong adhesion to the inner walls of water-circulation pipes, where real-time decontamination occurs. The research will explore material modifications, coating strategies, and structural optimization to improve light absorption, charge separation, and overall degradation efficiency of antibiotic pollutants. The developed coating aims to provide a robust, scalable, and environmentally friendly solution for continuous water treatment in aquaculture systems, contributing to improved water quality and reduced antibiotic discharge in Vietnamese shrimp farming.