Plastics are widely produced and used due to their low cost and outstanding performance. However, their poor degradability presents significant challenges in waste plastic treatment and disposal, leading to persistent environmental accumulation. Plastic pollution has become a critical environmental issue, posing substantial risks to human health and ecosystems. Despite the growing concern, current technologies for waste plastic treatment and disposal face considerable economic and technical obstacles. In this context, photocatalytic technology has garnered attention for its eco-friendly and mild processing methods. This paper examines various types of photocatalysts and their roles in photocatalytic reactions, focusing on recent advancements in the photocatalytic degradation and conversion of plastics. It also explores the synergy between plastic oxidation and hydrogen production. Furthermore, the paper provides an in-depth analysis of the factors influencing photocatalytic reactions. Finally, it discusses future opportunities and challenges in advancing this field.
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Cheng et al. (2025) studied this question.
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