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Photodegradation and photooxidation of polystyrene film and solutions have been widely investigated (Rabek & Ranby 1974a,1974b; Lawrence and Weir 1973). The main reactions observed are bond session, chain crosslinking and oxidative degradation.
Photocatalytic processes are emerging as green and promising approaches to upcycle plastics into value-added products under mild conditions using sunlight as the energy source. In this review, the recent advances in plastic conversion through photocatalysis have been comprehensively summarized.
Photodegradation has attracted our attention as it strikes an excellent balance of energy consumption, time consumption, and cost-effectiveness, holding great promise to end plastic wastes. Most importantly, it can capitalize on abundant and renewable solar energy. Herein, we revisit the concept of catalytic photodegradation of plastic wastes.
Photodegradation is the process by which a substance is altered via photons, especially those found in the wavelengths of the sun’s rays. Though photodegradation does eventually degrade plastic, this is a very slow and inefficient process.
Herein, the importance of catalytic photodegradation is emphasized to inspire research on developing new photocatalysts and new processes for decomposition of plastic waste, and then to increase its recycling rate particularly in the current pandemic with the ever-increasing generation of plastic waste.
Photolysis of biodegradable plastics is comprehensively reviewed. •. Factors affecting their photodegradation processes are elaborated. •. Indirect photolysis is a major photodegradation process of biodegradable plastics. •. Reactive oxygen species from biodegradable plastics may have multiple roles. •.
Photodegradation is the breakdown of complex materials into simpler ones due to light exposure. The world might be a much cleaner place if all plastics would just vanish in sunlight. Keep reading and you'll see just how realistic this kind of plastics technology is.
Herein, the importance of catalytic photodegradation is emphasized to inspire research on developing new photocatalysts and new processes for decomposition of plastic waste, and then to increase its recycling rate particularly in the current pandemic with the ever-increasing generation of plastic waste. Keywords:
Neglected but Crucial Role Played by Rainwater in the Photodegradation of Plastic. Jiehan Duan. , Danqing Zheng. , Nora Fung-yee Tam. , Marcello Brigante. , Gilles Mailhot. , Haichao Zhou. , Yanlin Wu* , and. Wenbo Dong* Cite this: ACS EST Water 2024, XXXX, XXX, XXX-XXX. Publication Date: June 19, 2024. https://doi.org/10.1021/acsestwater.4c00055.
In the environment, photodegradation is recognized as the most important processes that initiate plastic degradation. Photodegradation of plastics usually involves free radical mediated reactions initiated by solar irradiation (Fig. 2).