Self-assembly, photophysical and electrochemical properties and activation of the TiO₂ photocatalyst by perylene bisimide

Abstract

DPBI exists as highly fluorescent molecular wires and DPBI loaded TiO2 is more efficient in RO4 photodegradation.

Sol–gel synthesis of highly TiO2 aerogel photocatalyst via high temperature supercritical drying

“…In this regard, a variety of synthetic methods to prepare TiO 2 xerogel and aerogel have been utilized while varying the pH of solution (acid-catalyzed or basic-catalyzed) and the drying processes such as supercritical (aerogel) or conventional drying (xerogel). The application of TiO 2 in photodegradation of organic pollutants in water has also been discussed in literature [35][36][37][38][39][40][41][42][43][44][45][46][47][48] and it is reported that surface, structural properties and photocatalytic efficiency depend strongly on the method used for the preparation of materials. However, there is no direct correlation between surface proprieties and photoactivity of TiO 2 [49].…”

1D nanofiber composites of perylene diimides for visible-light-driven hydrogen evolution from water

“…38 Furthermore, chemical functionalization of PDIs can be used to tune the redox potentials and/or binding properties leading to efficient semiconductor heterostructures with energy levels suitable for photocatalytic-degradation or water reduction to H 2 . [38][39][40] Unlike most other organic molecules, PDIs have unique stability in air and under heating making them a robust material for solar energy applications. 31,32 Finally, in contrast to inorganic and carbonic counterparts, PDIs can be synthesized following simple synthetic routes from low-cost and abundant materials in high yields and purity.…”

Optical and Electrical Properties of New Perylene Diimide Thin Films

“…5,6 Perylene tetracarboxylic diimide (PTCDI), derivatives have attracted the attention of the scientific community owing to their chemical and thermal stability, electron affinity-enabling n-type semiconductor behaviour, and useful photophysical properties. 7,8 PTCDI are also vacuum-compatible and, in appropriate solvents, suitable for fabrication of thin films by use of the Langumuir-Blodgett technique. 9 PTCDIs, which are highly planar aromatic molecules with extensive p-systems have a tendency to self-align, resulting in intense luminescence and light fastness.…”