Surface photovoltage property of magnesium ferrite/hematite heterostructured hollow nanospheres prepared with one-pot strategy

Yu Shen, Qidong Zhao, Xinyong Li, Yang Hou, Guohua Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

24 Citations (Scopus)

Abstract

Magnesium ferrite/hematite heterostructured hollow nanospheres were successfully fabricated via a facile solvothermal method. The products were well characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high resolution transmission electron microscopy, Fourier transform infrared spectroscopy, UV-vis absorption spectroscopy and surface photovoltage spectroscopy. From the absorption edge in the UV-vis absorption spectrum of MgFe2O4/α-Fe2O3hollow nanospheres, an optical band-gap energy of about 1.986eV was estimated. Furthermore, it was observed that the heterostructured hollow nanospheres presented a remarkable surface photovoltage response in UV and visible spectral region, which was attributed to the effective formation of chemical interface between the two crystalline phases of MgFe2O4and α-Fe2O3.
Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume403
DOIs
Publication statusPublished - 5 Jun 2012
Externally publishedYes

Keywords

  • Hollow nanosphere
  • Magnesium ferrite/hematite
  • Solvothermal synthesis
  • Surface photovoltage property

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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