Effects of exposed facets on photocatalytic properties of WO3

Xin Wang, Huiqing Fan, Pengrong Ren

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Hexagonal WO3 (h-WO3) was prepared by using Na2SO4 and (NH4)2·SO4 as capping agents under different hydrothermal conditions. XRD, SEM and TEM results indicated that three types of morphologies, including h-WO3 rods with exposed (2 0 0) facets, h-WO3 nanosheets with exposed (0 0 2) facets and h-WO3 with corn cob-like structure and no preferred direction, could be obtained by tuning the capping agents and pH. Specifically, h-WO3 nanosheets with exposed (0 0 1) facets have the best visible photocatalytic properties due to its high specific surface area and charge separation nature on the (0 0 2) high energy facets.

Original languageEnglish
Pages (from-to)2549-2555
Number of pages7
JournalAdvanced Powder Technology
Volume28
Issue number10
DOIs
StatePublished - Oct 2017

Keywords

  • Facets engineering
  • Nanosheets
  • Photocatalytic
  • WO

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