Enhancement of Stability and Photocatalytic Performance on Hybrid Perovskite with Aniline

Yidi Wang, Liangfeng Luo, Lei Chen, Pui Fai Ng, Ka I. Lee, Bin Fei

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

Aniline was introduced into the synthesis of methylammonium lead bromide MAPbBr 3 (M-PE) as a capping ligand. With the appropriate steric hindrance, aniline effectively bound to the surface of M-PE particles and exposed hydrophobic phenyl groups, which were greatly beneficial for the enhancement of stability. M-PE and aniline-capped M-PE (AM-PE) were characterized by XRD, photoluminescence, UV/Vis spectroscopy, SEM and TEM. AM-PE showed more uniform morphology and much higher stability in polar solvents. AM-PE was almost unchanged in acetone within 100 hours while M-PE completely decomposed within 24 hours. Light harvesting in the visible region was also enhanced by aniline, so that AM-PE had much better performance for photodegradation of malachite green (MaG) than M-PE. In addition, the decomposition process of M-PE and AM-PE was also investigated in detail.

Original languageEnglish
Pages (from-to)1054-1058
Number of pages5
JournalChemNanoMat
Volume4
Issue number10
DOIs
Publication statusPublished - 1 Oct 2018

Keywords

  • anilines
  • nanoparticles
  • perovskite phases
  • photocatalysis
  • photoluminescence

ASJC Scopus subject areas

  • Biomaterials
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Materials Chemistry

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