Highly efficient photocatalyst Bi2MoO6 induced by blue light-emitting diode

The applicability of blue light-emitting diode (LED, λ = 465 nm) as the light source for environmental remediation by photocatalyst Bi2MoO6 was investigated. Two target compounds, phenol and ibuprofen (IBP), were selected as the model pollutants to evaluate the photocatalytic activities. The photocatalytic inactivation of Escherichia coli (E. coli) was also conducted to check the feasibility of using blue LED as the light source for the disinfection of bacteria. The results showed that efficient elimination of phenol and IBP and inactivation of E. coli were realized under a 3 W blue LED in the presence of Bi2MoO6. This demonstrates that LED is a competitive and promising alternative light source for the application in environmental remediation because the electrical energy consumption of LED decreased dramatically compared with other light source.

. Figure optionsDownload as PowerPoint slideHighlights▸ The applicability of LED as light source for environmental remediation is studied. ▸ Bi2MoO6 exhibits high photocatalytic activity under blue LED irradiation. ▸ The LED is a much more energy-saving light source than the generally used Xe lamp.