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Effects of Different Delocalized π-Conjugated Systems Towards the TiO2-Based Hybrid Photocatalysts.

ABSTRACT: Modulating the structure of a photocatalyst at the molecular level can improve the photocatalytic efficiency and provides a guide for the synthesis of highly qualified photocatalysts. In this study, TiO2 was modified by various organic compounds to form different TiO2-based hybrid photocatalysts. 1,10-Phenanthroline (Phen) is an organic material with delocalized π-conjugated systems. It was used to modify TiO2 to form the hybrid photocatalyst Phen/TiO2. Furthermore, 1,10-phenanthrolin-5-amine (Phen-NH2) and 1,10-phenanthroline-5-nitro (Phen-NO2) were also used to modify TiO2 to form NH2-Phen/TiO2 and NO2-Phen/TiO2, respectively. The samples of TiO2, Phen/TiO2, NO2-Phen/TiO2, and NH2-Phen/TiO2 were carefully characterized, and their photocatalytic performance was compared. The results indicated that the photocatalytic efficiency followed the order of NH2-Phen/TiO2 > NO2-Phen/TiO2 > Phen/TiO2 > TiO2. It could be found that modifying TiO2 with different organic compounds containing delocalized π-conjugated systems could enhance the photocatalytic ability; furthermore, the level of this enhancement could be modulated by different delocalized π-conjugated systems.

SUBMITTER: Zhang W 

PROVIDER: S-EPMC8353090 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Effects of Different Delocalized π-Conjugated Systems Towards the TiO<sub>2</sub>-Based Hybrid Photocatalysts.

Zhang Weibo W   Chen Pinghua P   Liu Jun J   Huang NanNan N   Feng Chenglian C   Wu Daishe D   Bai Yingchen Y  

Frontiers in chemistry 20210727

Modulating the structure of a photocatalyst at the molecular level can improve the photocatalytic efficiency and provides a guide for the synthesis of highly qualified photocatalysts. In this study, TiO<sub>2</sub> was modified by various organic compounds to form different TiO<sub>2</sub>-based hybrid photocatalysts. 1,10-Phenanthroline (Phen) is an organic material with delocalized π-conjugated systems. It was used to modify TiO<sub>2</sub> to form the hybrid photocatalyst Phen/TiO<sub>2</sub>  ...[more]

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