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

研究成果: Conference contribution

摘要

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.

原文English
主出版物標題Materials for Energy, Efficiency and Sustainability - TechConnect Briefs 2017
編輯Bart Romanowicz, Fiona Case, Matthew Laudon, Fiona Case
發行者TechConnect
頁面9-12
頁數4
ISBN(電子)9780997511796
出版狀態Published - 2017 一月 1
事件11th 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
持續時間: 2017 五月 142017 五月 17

出版系列

名字Advanced Materials - TechConnect Briefs 2017
2

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
國家United States
城市Washington
期間17-05-1417-05-17

All Science Journal Classification (ASJC) codes

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

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