Synthesis of silver sulfide stratified photocatalyst

Y. Baba, Shun Yokoyama, Hideyuki Takahashi, Kazuyuki Tohji

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this report, silver sulfide (Ag2S) was selected as a new H2S splitting photocatalyst material, and considered the synthesis method of Ag2S photocatalyst particles with stratified structure. Previous stratified particles were synthesized by using metal oxide (hydroxide) as the precursor. Ag2O particles as the precursor of Ag2S were synthesized by mixing AgNO3 solution and NaOH, and their particle sizes could be controlled by the solutions' concentration. Then, Ag2S particles were obtained by adding Na2S solution into suspending solution of Ag2O particles with optimum sizes. Particle sizes of Ag2S were changed by Na2S concentration control, and remaining Ag2O precursor could be dissolved by adding NH 3 solution. The photocatalytic H2S splitting could be realized by UV-light irradiation on the Ag2S particles without co-catalyst like Pt.

Original languageEnglish
Title of host publicationWater Dynamics - 5th International Workshop on Water Dynamics
Pages155-158
Number of pages4
DOIs
Publication statusPublished - 2008 Mar 17
Event5th International Workshop on Water Dynamics - Sendai, Japan
Duration: 2007 Sep 252007 Sep 27

Publication series

NameAIP Conference Proceedings
Volume987
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other5th International Workshop on Water Dynamics
CountryJapan
CitySendai
Period07/9/2507/9/27

Keywords

  • Hydrogen evolution
  • Photocatalyst
  • Silver sulfide
  • Stratified
  • Visible light

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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