The photo-catalytic activities of MP (M = Ba, Ca, Cu, Sr, Ag; P = PO 4 3- , HPO 4 2- ) microparticles

Fan Zhang, Yuanji Shi, Zongshan Zhao, Weijie Song, Yang Cheng

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

For the good performance of apatite-based materials in the removal of dyes and their environment-friendly advantage, five kinds of apatite microparticles of MP (M = Ba, Ca, Cu, Sr, Ag; P = PO 4 3- , HPO 4 2- ) were synthesized by a simple precipitation method and their photo-catalytic properties were invested. Better performance in the decolorization of methyl orange (MO) under the assistance of H 2 O 2 than that of TiO 2 were obtained for all the MPs. The photo-catalytic activity was mainly affected by surface area, energy band, impurity, crystallinity and crystal structure. The DFT calculation results demonstrated that the 2p of O and 3p of P in PO 4 3- played the main role in the photo-catalytic process. This work would be helpful to design and synthesize low cost apatite materials with good photo-catalytic performance.

Original languageEnglish (US)
Pages (from-to)570-575
Number of pages6
JournalApplied Surface Science
Volume292
DOIs
StatePublished - Feb 15 2014
Externally publishedYes

Bibliographical note

Funding Information:
This work was financially supported by the Youth Science and Technology Innovation Fund of College of Science, Nanjing Agricultural University, National Science Foundation of China (No. 20975107 , 60977048 , Y10845YM10 ).

Keywords

  • Apatite
  • Calculation
  • Degradation
  • Mechanism
  • Photo-catalyst

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