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Why You Can t Get a Tan by Sunbathing Through Most Glass

Why You Can t Get a Tan by Sunbathing Through Most Glass
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Water Treatment: Removing Hormones with Sunlight

Karlsruhe Institute of Technology Insertion of the photocatalytic membrane into the membrane reactor. (Photo: Markus Breig, KIT) Micropollutants such as steroid hormones contaminate drinking water worldwide and pose a significant threat to human health and the environment even in smallest quantities. Until now, easily scalable water treatment technologies that remove them efficiently and sustainably have been lacking. Scientists at the Karlsruhe Institute of Technology (KIT) developed a new chemical process for removing hormones. It takes advantage of the mechanisms of photocatalysis and transforms the pollutants into potentially safe oxidation products. The team reports on this in the scientific journal Applied Catalysis B: Environmental.

Karlsruher Institute for Technology: Water treatment: Use sunlight to eliminate hormones

Perovskite Solar Modules: High Efficiency on a Large Surface Area

Karlsruhe Institute of Technology An innovative combination of processes enables the interconnection of cells to form modules with nearly no losses. (Photo: Amadeus Bramsiepe, KIT) From cell to module without loss of efficiency: This is one of the main challenges of perovskite photovoltaics. Researchers at Karlsruhe Institute of Technology (KIT) have now managed to produce perovskite solar modules with minimum scaling loss. For this purpose, they combined laser-based series interconnections with vacuum processing of all layers of the solar cell. They achieved an 18 percent efficiency on an area of four square centimeters – a world record for vacuum-processed perovskite solar modules.

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