Synthesis and characterization of Ag/Ag3PO4 nanomaterial modified BiPO4 photocatalyst by sonochemical method and its photocatalytic application

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

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)

摘要

Ag/Ag3PO4 nanomaterial modified BiPO4 photocatalysts (Ag/Ag3PO4/BiPO4) were synthesized by sonochemical method. The BiPO4 and Ag/Ag3PO4/BiPO4 photocatalysts were characterized by XRD, UV–Vis DRS, Raman, and TEM analysis. The photocatalytic activity of the prepared heterostructures was studied through the photodegradation of methylene blue (MB) under visible-light irradiation (λ > 420 nm, 70 W/cm2). The photodegradation of MB was found to be follow pseudo-first-order kinetics. The antimicrobial activity of the prepared heterostructures has also been evaluated in the disinfection of pathogens (Escherichia coli and Staphylococcus aureus). The prepared Ag/Ag3PO4/BiPO4 photocatalysts displayed considerably higher photocatalytic activity (>99% degradation within 25 min and >99% disinfection within 20 min) than did pure BiPO4. This enhanced photocatalytic activity of the Ag/Ag3PO4/BiPO4 photocatalysts 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. The possible mechanism underlying the enhanced photocatalytic activities of the Ag/Ag3PO4/BiPO4 photocatalysts is also provided.

原文English
頁(從 - 到)11886-11899
頁數14
期刊Journal of Materials Science: Materials in Electronics
28
發行號16
DOIs
出版狀態Published - 2017 八月 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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