Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 24, Pages 11377-11389Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta02539h
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Funding
- SOA University
- CSIR New Delhi
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The designing of novel heterostructures for excellent photocatalytic activity has recently gathered intense attention and has exerted an enormous fascination. In this regard 2D nanoarchitectured CeO2-FeOOH/Fe2O3 heterostructures have been synthesized controllably through a hydrothermal process. The nanohybrids present an excellent performance towards photocatalytic (O-2 evolution and Cr(vi) reduction) as well as photoelectrochemical activity. Our results show that oxygen vacancies are induced due to the incorporation of low-cost iron materials (FeOOH and Fe2O3) onto CeO2, later confirmed by XPS and TEM analysis, which enhances the charge separation through an n-n junction, leading to enhanced catalytic activity. Furthermore, the highlighted feature of our synthesized binary hybrid is the self-healing process under light irradiation, which repairs structural damage without any activator, that mimics the self-repairing effect of living organisms. This work represents the concept of integrating different functional materials into one nanoarchitectured material and provides useful information about structural regeneration, which may be useful for the development of a new generation of auto-healing nanoarchitectured materials.
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