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Solar Driven Interfacial Evaporation / Solar Steam Generation (Desalination)
Freshwater availability is becoming an increasingly critical global challenge. Solar desalination offers a sustainable approach by utilizing sunlight as a natural heat source. However, the efficiency of conventional solar desalination systems is often limited by heat loss during the evaporation process. Aerogel has a highly porous structure and excellent heat-retention properties, allowing the system to achieve higher temperatures, accelerate evaporation, and improve condensation efficiency.
Experimental results show that the use of aerogel significantly reduces heat loss, increases evaporation rates, and enhances the overall performance of solar desalination. This technology demonstrates strong potential as an environmentally friendly and sustainable water purification solution.
In our experimental study demonstrates that the addition of aerogel to the Photo-Fenton system accelerates methylene blue degradation due to its high surface area, high porosity, and 3D structure, which provide abundant active sites for Fe²⁺/Fe³⁺ dispersion and improve contact between the catalyst, H₂O₂, and dye molecules. Aerogel also adsorbs MB, concentrating pollutants near reactive sites and increasing the chances of reaction with hydroxyl radicals (•OH). Under light irradiation, it enhances Fe²⁺ regeneration from Fe³⁺, maintaining continuous redox cycling and •OH production. These combined effects lead to faster degradation kinetics compared to the conventional Photo-Fenton system.
This experiment demonstrates the application of aerogel in a thermoelectric cooling system using a Peltier module on the surface of water. Aerogel is utilized as a thermal insulation material to minimize heat loss, maintain temperature stability, and improve the overall efficiency of the cooling process.
The results show that aerogel can significantly enhance thermal performance by reducing heat transfer and maintaining a stable temperature gradient, which is essential for improving the efficiency of thermoelectric applications. This study highlights the potential of aerogel for advanced thermal management and energy-related technologies.
The image shows a fabricated coin cell that has been successfully assembled at the NRE Laboratory using the developed NRE material as the active component. The coin cell fabrication process was carried out to evaluate the electrochemical performance of the material in a practical battery configuration. Based on battery testing results, the coin cell demonstrated promising performance with stable charge–discharge behavior and good cycling stability. These results indicate that the synthesized NRE material possesses strong potential for application in energy storage systems and confirms the feasibility of scaling the material toward real battery devices.
The electrochemical performance of the material was evaluated using a three-electrode system connected to a potentiostat/galvanostat to determine its specific capacitance and energy storage behavior.
Electrochemical characterization was carried out using several techniques, including Cyclic Voltammetry (CV) to study the redox behavior and charge storage capability, Galvanostatic Charge–Discharge (GCD) to calculate the specific capacitance and cycling stability, and Electrochemical Impedance Spectroscopy (EIS) to analyze internal resistance and charge-transfer kinetics. These combined methods provide a comprehensive understanding of the capacitive performance, conductivity, and overall electrochemical efficiency of the material.