Photocatalytic degradation by TiO2-conjugated/coordination polymer heterojunction: Preparation, mechanisms, and prospects.

Photocatalytic technology having the advantages of low-cost, environmental friendliness, is important in removing organic pollutants. To enhance the catalytic efficacy of well-established TiO 2 photocatalyst, TiO 2 -conjugated/coordination polymer heterojunction photocatalysts have been rapidly developed in the area of environmental remediation. However, a comprehensive summary and description of these advancements are lacking. To fill this gap, the research progress of TiO 2 -conjugated/coordination polymer heterojunction photocatalysts for organic pollutants degradation is reviewed. Firstly, classifications, working principles, and photodegradation pathways of TiO 2 -based heterostructures are introduced. Subsequently, the synthesis strategies, photocatalytic performance, and mechanisms of TiO 2 -conjugated/coordination polymer photocatalysts are comprehensively summarized. The effects of operational parameters on photodegradation are discussed. Lastly, promising prospects of TiO 2 -based heterojunction photocatalysts systems and urgent issues to be solved are foreseen. It is hoped that this review sets the trajectory for providing references in preparation and catalytic capacities of TiO 2 -based heterojunction photocatalysts, providing new ideas for resourceful wastewater remediation. [Display omitted] • First review of photodegradation pollutants by TiO 2 -conjugated/coordination polymer. • The detailed degradation pathways of common organic pollutants are discussed. • Properties and mechanisms of TiO 2 -conjugated/coordination polymer are elaborated. • The influence of operating parameters on photodegradation efficiency is recalled. • Challenges and prospects of TiO 2 -conjugated/coordination polymer are presented. [ABSTRACT FROM AUTHOR]