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Technology developed in India combines electricity production with environmental treatment in a single system
Researchers at the Indian Institute of Science (IISc) have developed a zinc-air battery that can produce energy while simultaneously generating hydrogen peroxide (H₂O₂), a compound used to treat contaminated wastewater. The innovation represents a promising step forward in the combination of energy efficiency and environmental preservation.
Technology that generates energy and treats pollutants
The new battery uses zinc metal as the anode and oxygen present in the air as the cathode. During discharge, the oxygen is reduced and generates H₂O₂ instead of water, thanks to a carbon catalyst that dispenses with precious metals. This hydrogen peroxide can be used to degrade substances toxic substances in industrial effluents, especially in waters containing synthetic dyes, which are common in the textile industry. The device therefore fulfills two simultaneous functions: supplying energy and purifying water.
Practical applications and positive environmental impact
To prove its effectiveness, researchers tested the battery with solutions containing industrial dyes. The presence of H₂O₂ resulted in the degradation of pollutants, evidenced by visual changes in the color of the water. This approach can benefit areas with little access to conventional treatment and energy systems, promoting decentralized solutions with a lower environmental impact. In addition, the H₂O₂ generated can be used in various applications, such as disinfection and industrial processes.
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Economical and viable alternative to the traditional model
The traditional method of producing hydrogen peroxide is costly and energy-intensive, in addition to the use of metal catalysts. The zinc-air battery proposed by IISc uses abundant and affordable materials, such as zinc and carbon, and operates on ambient air. The simplicity of construction and low operating costs make the technology promising for large-scale application, especially in developing countries or regions focused on sustainable energy and sanitation solutions.
Energy and environment united in the same solution
The Indian Institute of Science's proposal represents an important step in the integration of energy innovation and sustainability. By generating clean electricity While also acting to remove pollutants from water, the zinc-air battery points to a future in which energy storage devices can have multiple functions. The project reinforces the global trend of creating energy solutions that also address local environmental challenges.
