Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 2, Issue 2, Pages 544-550Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am900743d
Keywords
composite; antibiotic; visible-light photocatalyst; nano-sized; coated; excellent bactericidal activeites and recyclability
Funding
- NSFC [20731003]
- MOST of China [2007CB613303]
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Montmorillonite (MMT)-supported Ag/TiO2 composite (Ag/TiO2/MMT) has been prepared through a one-step, low-temperature solvothermal technique. Powder X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveal chat the Ag particles coated with TiO2 nanoparticles are well-dispersed on the surface of MMT in the composite. As a support for the Ag/TiO2 composite, the MMT prevents the loss of the catalyst during recycling test. This Ag/TiO2/MMT composite exhibits high photocatalytic activity and good recycling performance in the degradation of E. coli under visible light. The high visible-light photocatalytic activity of the Ag/TiO2/MMT composite is ascribed to the increase in surface active centers and the localized surface plasmon effect of the Ag nanoparticles. The Ag/TiO2/MMT materials with excellent stability, recyclability, and bactericidal activities are promising photocatalysts for application in decontamination.
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