Ultrastable Luminescent Hybrid Bromide Perovskite@MOF Nanocomposites for the Degradation of Organic Pollutants in Water

Samraj Mollick, Tarak Nath Mandal, Atanu Jana, Sahel Fajal, Aamod V. Desai, Sujit K. Ghosh

Research output: Contribution to journalArticlepeer-review

120 Scopus citations

Abstract

Hybrid bromide perovskites (HBPs) have emerged as a promising candidate in optoelectronic applications, although instability of the materials under working conditions has retarded the progress toward commercialization. As a rational approach to address this core issue, we herein report the synthesis of a series of ultrastable composite materials, wherein HBP nanocrystals (NCs) have been stabilized within a well-known chemically stable metal-organic framework (MOF) viz. zeolitic imidazolate framework (ZIF-8) via a pore-encapsulated solvent-directed (PSD) approach. The composites maintain their structural integrity as well as photoluminescence (PL) properties upon dipping into a wide range of polar solvents including water (even in boiling conditions), prolonged exposure to UV irradiation, and elevated temperature for longer periods of time. Further, on the basis of high stability, HBP@MOF composites have been demonstrated as heterogeneous photocatalysts to degrade toxic organic pollutants directly in water.

Original languageEnglish
Pages (from-to)1333-1340
Number of pages8
JournalACS Applied Nano Materials
Volume2
Issue number3
DOIs
StatePublished - 22 Mar 2019

Keywords

  • hybrid bromide perovskite
  • luminescence properties
  • nanocomposites
  • photocatalysis
  • porous coordination polymer
  • stability of hybrid perovskite

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