"Sun" 3 hours new plastic completely degraded
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It is understood that in order to create this new type of material, scientists have used a molecule that can be extracted from monosaccharides found in foods such as fruit, fructose, and another light-absorbing molecule called a photocatalyst. By heating this mixture, they generate a long molecular chain with a repeating unit structure that, after cooling, forms a solid plastic.
Subsequently, the researchers placed the plastic under ultraviolet light with a wavelength of 350 nanometers, which is within the wavelength range of the light of the solar radiation. This causes the light-absorbing molecules to detach from the long molecular chains, causing plastic degradation. The entire experimental process based on the proof of concept was very efficient. The plastic exposed to ultraviolet light degraded into a clean solution in only 3 hours, which fully demonstrated that the plastic had been decomposed into soluble unit structure molecules, which were degraded from the plastic. Molecules can be reused to make this new type of material, thereby reducing the need for raw materials.