Enhancing Water Harvesting Efficiency Using Laser-Ablated Brass Surfaces with Hybrid Hydrophilic/Superhydrophobic Patterns

In recent years, global climate change and population growth have exacerbated freshwater shortages. to address this issue, harvesting water from atmospheric fog has emerged as a promising technique. inspired by natural processes, the fabrication of hybrid hydrophilic (hi) and superhydrophobic (shb) surfaces has gained significant attention for enhancing water harvesting efficiency. this study presents a simple and cost-effective laser ablation method for creating wettability contrast surfaces with triangular and parallel patterns on brass. through x-ray diffraction (xrd) analysis and scanning electron microscopy (sem), we investigated the structural and morphological effects on the wettability behavior of irradiated and non-irradiated brass. additionally, we examined the influence of pattern shapes on water harvesting efficiency. our findings indicate that triangular patterns significantly enhance water harvesting performance compared to parallel patterns.