This study investigates the photooxidation of Roxithromycin and Erythromycin, two prevalent antibiotics found in antibiotic industry wastewater, utilizing a CeO₂/ZnO nanocomposite as a photocatalyst. The synthesized CeO₂/ZnO nanocomposite exhibits enhanced photocatalytic activity under sun light irradiation, promoting the degradation of these antibiotics. Various parameters, including catalyst loading, initial antibiotic concentration, and reaction time, were systematically optimized to assess their influence on the photocatalytic efficiency. The results indicate significant degradation rates for both antibiotics. These findings underscore the potential of CeO₂/ZnO nanocomposites as a viable solution for the remediation of antibiotic-contaminated wastewater, contributing to environmental sustainability and public health protection.

Keywords: cerium oxide, zinc oxide, photocatalytic degradation, antibacterial activity.

The growth of wind energy in Brazil has driven the development of wind farms in various regions, especially in the Northeast, bringing economic and environmental benefits. However, the sector also presents significant occupational risks, mainly related to activities at height and the handling of heavy loads. In light of this, this article sought to assess the importance of worker safety in wind farms in Brazil, based on an integrative literature review. The methodology consisted of analyzing articles and studies published between 2017 and 2024, consulted from the Scielo, PubMed, and Google Scholar databases.........

Keywords: Wind farms; Occupational safety; Accidents; International Certifications.

Rapid urbanization across the world creates several challenges for the field of sustainable development. One promising approach to addressing challenges in urban planning and fostering sustainable development in such a setting is the integration of AI with remote sensing technology. This research provides a summary of how AI and remote sensing are being used for sustainable development in urban planning. The article's first part presents an outline of the most pressing issues created by urbanization, such as population growth, resource depletion, environmental degradation, and increased energy use.........

Keywords: Sustainable Development, Artificial Intelligence (AI), Smart and Sustainable Cities, Remote Sensing, Urban planning.