Controlled synthesis of Ag3PO4 microparticles with different morphologies and their photocatalytic degradation of rhodamine B under white light-emitting diode irradiation

Tzu Ting Wei, Tsunghsueh Wu, Yang-Wei Lin

Research output: Contribution to journalArticle

Abstract

A facile morphological specific precipitation method by volumetric control of the precursors has been demonstrated to achieve tetrapod-like and dodecahedron-like Ag3PO4 microparticles, which show superior visible-light responsive of photocatalytic activity when comparing to TiO2 (P25). This study also reveals that the tetrapod-like Ag3PO4 microparticles exhibit significantly higher photocatalytic activity (95.6% degradation within 20 min, k: 0.1937 min-1) than the dodecahedrons (78.9% degradation within 30 min, k: 0.0593 min-1) for the degradation of rhodamine B (RhB, 10 ppm) under low-power white light-emitting diode irradiation (300 mW cm-2), which may be attributed to the high reactivity of {110} facets. Moreover, holes and superoxide radicals were the main reactive species involved in RhB degradation.

Original languageEnglish
Pages (from-to)363-366
Number of pages4
JournalMicro and Nano Letters
Volume14
Issue number4
DOIs
Publication statusPublished - 2019 Apr 3

Fingerprint

rhodamine B
microparticles
rhodamine
Light emitting diodes
light emitting diodes
Irradiation
degradation
Degradation
irradiation
synthesis
inorganic peroxides
Superoxides
flat surfaces
reactivity

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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abstract = "A facile morphological specific precipitation method by volumetric control of the precursors has been demonstrated to achieve tetrapod-like and dodecahedron-like Ag3PO4 microparticles, which show superior visible-light responsive of photocatalytic activity when comparing to TiO2 (P25). This study also reveals that the tetrapod-like Ag3PO4 microparticles exhibit significantly higher photocatalytic activity (95.6{\%} degradation within 20 min, k: 0.1937 min-1) than the dodecahedrons (78.9{\%} degradation within 30 min, k: 0.0593 min-1) for the degradation of rhodamine B (RhB, 10 ppm) under low-power white light-emitting diode irradiation (300 mW cm-2), which may be attributed to the high reactivity of {110} facets. Moreover, holes and superoxide radicals were the main reactive species involved in RhB degradation.",
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