A chemical bath deposition route to facet-controlled Ag3PO4 thin films with improved visible light photocatalytic activity

Jayavant L. Gunjakar, Yun Kyung Jo, In Young Kim, Jang Mee Lee, Sharad B. Patil, Jae Chul Pyun, Seong Ju Hwang

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

A facile, economic, and reproducible chemical bath deposition (CBD) method is developed for the fabrication of facet-controlled Ag3PO4 thin films with enhanced visible light photocatalytic activity. The fine-control of bath temperature, precursor, complexing agent, substrate, and solution pH is fairly crucial in preparing the facet-selective thin film of Ag3PO4 nanocrystal. The change of precursor from silver nitrate to silver acetate makes possible the tailoring of the crystal shape of Ag3PO4 from cube to rhombic dodecahedron and also the bandgap tuning of the deposited films. The control of [Ag+]/[phosphate] ratio enables to maximize the loading amount of Ag3PO4 crystals per the unit area of the deposited film. All the fabricated Ag3PO4 thin films show high photocatalytic activity for visible light-induced degradation of organic molecules, which can be optimized by tailoring the crystal shape of the deposited crystals. This CBD method is also useful in preparing the facet-controlled hybrid film of Ag3PO4-ZnO photocatalyst. The present study clearly demonstrates the usefulness of the present CBD method for fabricating facet-controlled thin films of metal oxosalt and its nanohybrid.

Original languageEnglish
Pages (from-to)115-121
Number of pages7
JournalJournal of Solid State Chemistry
Volume240
DOIs
StatePublished - 1 Aug 2016

Bibliographical note

Publisher Copyright:
© 2016 Published by Elsevier Inc.

Keywords

  • Chemical bath deposition
  • Facet control
  • Photocatalytic activity
  • Silver phosphate
  • Thin film

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