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The advancement in industries and modern technology has been escorted by an expansion in the utilization of chemicals to obtain plastic-based products. Increased plastic production and disposal have greatly affected the environment and living organisms globally. Macro and micro-plastics have a persistent nature, and their natural degradation takes years. Transport, impact, behavior, and degradation have attracted growing research attention. However, a review study on titanium dioxide (TiO₂) based photocatalytic degradation of macro and micro-plastics has not been summarized. Herein, a brief overview of the TiO₂ application for macro and micro-plastics degradation has been summarized. Different preparation methods for TiO₂ synthesis and its modification for plastics decomposition have been presented. The degradation efficiency and applied system limitations with future research directions are proposed …