The enrichment of photo-catalysis via self-assembly perylenetetracarboxylic acid diimide polymer nanostructures incorporating TiO2 nano-particles

被引：49

作者：

Liu, Li ^{[1
]}

Yue, Mengting ^{[1
]}

Lu, Jinrong ^{[1
]}

Hu, Jinshan ^{[1
]}

Liang, Yinghua ^{[1
]}

Cui, Wenquan ^{[1
]}

机构：

[1] North China Univ Sci & Technol, Coll Chem Engn, Hebei Key Lab Environm Photocatalyt & Electrocata, Tangshan 063009, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2018年 / 456卷

基金：

中国国家自然科学基金;

关键词：

Self-assembly; Perylenetetracarboxylic acid diimide; Nanosheet; Hybrid; Photocatalytic performance; PERYLENE DIIMIDE; GRAPHENE OXIDE; PHOTOCATALYTIC DEGRADATION; TIO2-GRAPHENE HYDROGEL; H-2; EVOLUTION; BISPHENOL-A; PI-STACKING; REMOVAL; WATER; NANOPARTICLES;

D O I：

10.1016/j.apsusc.2018.06.183

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reports that hybrid titanium dioxide (TiO2) packaged self-assembly perylenetetracarboxylic acid diimide (PTCDI) by self-assembly. These were synthesized through simple mechanical milling that has great photocatalytic performance under visible light. The PTCDI@TiO2 composite had high activity for the degradation of phenol and 2,4-dichlorophenol, which were 2.3 and 3.2 times of the monomer PTCDI, respectively. After three cycles, the activity of the composite catalyst remained at 70%. Further analysis showed that the photocatalytic activity and stability are mainly due to the enhancement of the charge mobility by the pi-pi conjugated structure in PTCDI. Moreover, the good energy level matching between PTCDI and TiO2 helps to separate the electron-hole, thus improving the photocatalytic performance of the composite. The origin of photocatalytic activity was greatly improved due to holes and O-center dot(2)-, which was mainly attributed to the strong interaction between PTCDI and TiO2.

引用

页码：645 / 656

页数：12

共 66 条

[1] Effect of side-chain substituents on self-assembly of perylene diimide molecules: Morphology control [J].