Design of digital learning environments with PowerPoint and PREZI A best practice example from teacher's training

To strengthen the media competence of future chemistry teachers a seminar concept was tested at the Institute of Chemistry Education at the University of Cologne, focusing on creating a digital learning environment using PowerPoint, and PREZI by the students themselves. This practice report gathers the key experiences and results of the seminar

Hello future! Printed electronics as a hands-on-experiment for teaching science in high schools and universities

Printed electronics is an emerging research field and is going to play a vital role in our everyday-life in the near future. Printed electronic devices can be very thin and flexible, which makes them feasible for various applications. For the implementation in High Schools and Universities the authors developed a flexible, light emitting foil, which can be printed manually using simple materials and methods

Digitalisation in Chemistry Education : Digitales Lehren und Lernen an Hochschule und Schule im Fach Chemie

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OLED Reloaded: The Synthesis of the Semiconductor Polymer MEH-PPV as a School Experiment

Organic light emitting diodes (OLEDs) are modern illuminants of the next generation. OLEDs use (among others) semiconducting polymers for light emission and open the pathway to innovative applications as flexible or transparent displays or luminaire. For the school-implementation of OLEDs low-cost experiments and teaching materials have been developed earlier. This contribution delivers a school-experiment for the synthesis of a semiconducting polymer and presents a successful example of a curricular innovation based on the cooperation between subject science and science education

Monitoring and Management of Anions in Polluted Aqua Systems: case studies on nitrate, chromate, pertechnetate and diclofenac

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Activated Carbon from Sugarcane Bagasse: A Low-Cost Approach towards Cr(VI) Removal from Wastewater

The potential of pretreated sugarcane bagasse (SCB) as a low-cost and renewable source to yield activated carbon (AC) for chromate CrO42− removal from an aqueous solution has been investigated. Raw sugarcane bagasse was pretreated with H2SO4, H3PO4, HCl, HNO3, KOH, NaOH, or ZnCl2 before carbonization at 700 °C. Only pretreatments with H2SO4 and KOH yield clean AC powders, while the other powders still contain non-carbonaceous components. The point of zero charge for ACs obtained from SCB pretreated with H2SO4 and KOH is 7.71 and 2.62, respectively. Batch equilibrium studies show that the most effective conditions for chromate removal are a low pH (i.e., below 3) where >96% of the chromate is removed from the aqueous solution