Ag+, Fe3+ and Zn2+-intercalated cadmium(II)-metal-organic frameworks for enhanced daylight photocatalysis

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Surib, N.A.; Sim, L.C.; Leong, K.H.; Kuila, A.; Saravanan, P. et al.: Ag+, Fe3+ and Zn2+-intercalated cadmium(II)-metal-organic frameworks for enhanced daylight photocatalysis. In: RSC Advances 7 (2017), Nr. 81, S. 51272-51280. DOI: https://doi.org/10.1039/c7ra10034e

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Abstract: 
Design and synthesis of multi-dimensional metal-organic frameworks are fascinating because MOFs possess intriguing structures and unique properties and exhibit potential applications in photocatalysis. In the present study, we endeavoured to synthesize a new Cd-linked MOF through a simple hydrothermal route. The daylight utilising attributes of the Cd-MOF were enhanced by intercalating Ag+, Fe3+, and Zn2+ into the framework via an ion-exchange technique. The optical property shows that Fe3+ stimulates the photo response in the visible region, whereas Ag+ and Zn2+ stimulate the photo response in the ultraviolet light region. Photocatalytic efficiency of the developed MOFs was investigated by degradation of 2-CP under daylight illumination. The Cd-MOFs intercalated with Fe3+ exhibit excellent photocatalysis as compared to the rest, degrading 93% of 2-CP in 5 h of illumination. The intercalation of Fe3+ onto the Cd-MOF significantly reduced the energy gap of the pure MOF; this led to an increased formation of reactive oxygen species driven by the electrons (e-) and holes (h+). Thus, the developed modified MOF clearly demonstrated its capability as a daylight photocatalyst as compared to the existing conventional photocatalysts.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
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1 image of flag of Germany Germany 58 61.70%
2 image of flag of China China 8 8.51%
3 image of flag of United States United States 6 6.38%
4 image of flag of Zimbabwe Zimbabwe 5 5.32%
5 image of flag of United Kingdom United Kingdom 3 3.19%
6 image of flag of Malaysia Malaysia 2 2.13%
7 image of flag of Korea, Republic of Korea, Republic of 2 2.13%
8 image of flag of South Africa South Africa 1 1.06%
9 image of flag of Ukraine Ukraine 1 1.06%
10 image of flag of Thailand Thailand 1 1.06%
    other countries 7 7.45%

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