In:
Journal of Materials Chemistry A, Royal Society of Chemistry (RSC), Vol. 9, No. 45 ( 2021), p. 25474-25479
Abstract:
Defect engineering is a promising methodology for modulating the electronic and band structure of semiconductive materials. A series of covalent organic frameworks, designated TAPT-COF- X ( X = mole equivalents of modulator 3,5-dimethylbenzaldehyde relative to three equivalents of linker) for water-splitting have been prepared bearing a controlled proportion of structural defects. These defects significantly enhanced photocatalytic H 2 production. Hydrogen evolution rates of 33 910 μmol g −1 h −1 were achieved, with the maximum H 2 evolution rate for TAPT-COF-7 2.3 times that of parent TAPT-COF. Time-resolved fluorescence measurements and electrochemical impedance spectroscopy indicated that TAPT-COF-7 also possessed the highest charge separation efficiency.
Type of Medium:
Online Resource
ISSN:
2050-7488
,
2050-7496
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
2702232-8