Abstract
An experiment simulating the natural cycle of photosynthesis and respiration â and dealing with both matter and energy conversion â is presented and theoretically elucidated. Teaching recommendations concerning the integration of the Photo-Blue-Bottle experiment into lower chemistry and biology education according to the 5E Instructional Model are provided as well as supplementary materials.
Highlights
In the ongoing scientific research, outstanding efforts are dedicated to solve a big problem: How would it become possible to use solar light as the main energy source in chemical synthesis as well as in the industrial production of “green fuels”? In order to solve this problem, the firm conviction in the scientific community is: Learn from nature! [1,2,3]
The photocatalyst monocation PF+ is regenerated by electron capture from the sacrificial donor EDTA to PF2+
EDTA is irreversibly consumed during irradiation, whereas proflavine goes through many turnovers, i.e. photocatalytic oxidation-reduction cycles, without being consumed. (Note that the concentration of proflavine in the PBB solution is only approximately 1% of the concentration of ethylviologene - see Experiments)
Summary
In the ongoing scientific research, outstanding efforts are dedicated to solve a big problem: How would it become possible to use solar light as the main energy source in chemical synthesis as well as in the industrial production of “green fuels”? In order to solve this problem, the firm conviction in the scientific community is: Learn from nature! [1,2,3]. In the ongoing scientific research, outstanding efforts are dedicated to solve a big problem: How would it become possible to use solar light as the main energy source in chemical synthesis as well as in the industrial production of “green fuels”? In order to visualize this, a microscale galvanic concentration cell as shown in Figure 3 can be assembled and operated even by students. Using this type of cells, voltages up to 240 mV can be reached
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