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Synthesis of Double-Shell Hollow TiO2@ZIF-8 Nanoparticles With Enhanced Photocatalytic Activities.


ABSTRACT: Synthesis of semiconductor-MOF heterostructure photocatalysts has attracted considerable attention for their thermal stability, controllable crystallinity, and enhanced photocatalytic activity. In this work, the hollow nanostructure of anatase TiO2 was prepared by etching SiO2 from core-shell SiO2@TiO2 nanoparticles. ZIF-8, one of the metal-organic frameworks (MOFs), was hybrid synthesized on the surface of hollow TiO2 and formed double-shell hollow nanoparticles. The photocatalytic activity of the double-shell hollow TiO2@ZIF-8 nanoparticles toward methylene blue (MB) under UV light irradiation was processed, and the highest photocatalytic efficiency of 99.1% was shown compared with TiO2 and SiO2@TiO2 nanoparticles. This study suggests a promising approach to achieve an advanced photocatalytic performance toward dye degradation using MOFs for the surface engineering of semiconductors.

SUBMITTER: Fu N 

PROVIDER: S-EPMC7645166 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Synthesis of Double-Shell Hollow TiO<sub>2</sub>@ZIF-8 Nanoparticles With Enhanced Photocatalytic Activities.

Fu Ning N   Ren Xue-Chang XC  

Frontiers in chemistry 20201023


Synthesis of semiconductor-MOF heterostructure photocatalysts has attracted considerable attention for their thermal stability, controllable crystallinity, and enhanced photocatalytic activity. In this work, the hollow nanostructure of anatase TiO<sub>2</sub> was prepared by etching SiO<sub>2</sub> from core-shell SiO<sub>2</sub>@TiO<sub>2</sub> nanoparticles. ZIF-8, one of the metal-organic frameworks (MOFs), was hybrid synthesized on the surface of hollow TiO<sub>2</sub> and formed double-shel  ...[more]

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