TiO2@ZIF-8: A novel approach of modifying micro-environment for enhanced photo-catalytic dye degradation and high usability of TiO2 nanoparticles

R. Chandra, S. Mukhopadhyay, M. Nath

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

For the first time commercially obtained TiO2 nanoparticles (NPs) were successfully encapsulated in zeolitic imidazole framework-8 (ZIF-8) through in situ incorporation. Synthesized TiO2@ZIF-8 composite was found to have high thermal stability and retained same hexagonal morphology of ZIF-8 as supported by powder crystal X-ray diffraction pattern. The composite (TiO2@ZIF-8) has higher photo-catalytic activity than TiO2 NPs for the degradation of methylene blue and rhodamine-B, and it retained high catalytic efficiency even after the fifth catalytic cycle. This study suggests a promising approach towards the heterogeneous photo-catalytic dye degradation technique using ZIF-8 as the catalytic host for long known photo-catalyst TiO2 NPs.

Original languageEnglish
Pages (from-to)571-574
Number of pages4
JournalMaterials Letters
Volume164
DOIs
StatePublished - 1 Feb 2016
Externally publishedYes

Keywords

  • Composite materials
  • Methylene blue
  • Nanoparticles
  • Photo-catalytic degradation
  • Rhodamine-B

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