Ag/Ag3PO4-doped BiPO4 heterostructures and their photocatalytic applications under visible light irradiation

Yen Jui Chen, Po Jen Tseng, Chi Shun Tseng, Chang Wei Huang, Tsunghsueh Wu, Mei Yao Wu, Yang-Wei Lin

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

Abstract

Ag/Ag3PO4-doped BiPO4 (Ag/Ag3PO4/BiPO4) heterostructures were synthesized by the hydrothermal method combined with the sonochemical process. Transmission electron microscopy and UV-Vis diffuse reflectance spectroscopy were used to characterize the heterostructures. The morphologies and optical properties of the heterostructures were determined to be drastically different from those of BiPO4. Ag/Ag3PO4/BiPO4 was used in the photocatalytic degradation of a dyestuff (methylene blue) and the disinfection of pathogens (Escherichia coli) under visible light (Λ > 420 nm) irradiation, and it displayed considerably higher photocatalytic activity (>99% degradation and >99% disinfection within 20 min) than did pure BiPO4. This enhanced photocatalytic activity of the Ag/Ag3PC>4/BiPO4 heterostructure can be attributed to the high separation efficiency and low recombination rate of photogenerated electron-hole pairs, as well as the Ag+ ions release under visible light irradiation.

Original languageEnglish
Title of host publicationMaterials for Energy, Efficiency and Sustainability - TechConnect Briefs 2017
EditorsBart Romanowicz, Fiona Case, Matthew Laudon, Fiona Case
PublisherTechConnect
Pages9-12
Number of pages4
ISBN (Electronic)9780997511796
Publication statusPublished - 2017 Jan 1
Event11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo, and the 2017 National SBIR/STTR Conference - Washington, United States
Duration: 2017 May 142017 May 17

Publication series

NameAdvanced Materials - TechConnect Briefs 2017
Volume2

Other

Other11th Annual TechConnect World Innovation Conference and Expo, Held Jointly with the 20th Annual Nanotech Conference and Expo, and the 2017 National SBIR/STTR Conference
CountryUnited States
CityWashington
Period17-05-1417-05-17

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All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Surfaces, Coatings and Films
  • Biotechnology
  • Fluid Flow and Transfer Processes

Cite this

Chen, Y. J., Tseng, P. J., Tseng, C. S., Huang, C. W., Wu, T., Wu, M. Y., & Lin, Y-W. (2017). Ag/Ag3PO4-doped BiPO4 heterostructures and their photocatalytic applications under visible light irradiation. In B. Romanowicz, F. Case, M. Laudon, & F. Case (Eds.), Materials for Energy, Efficiency and Sustainability - TechConnect Briefs 2017 (pp. 9-12). (Advanced Materials - TechConnect Briefs 2017; Vol. 2). TechConnect.