Synthesis of Novel Functional Materials for the Photo-Catalytic Reaction

Li Li Yang; Lin Yu; Gui Qiang Diao

doi:10.4028/www.scientific.net/AMR.774-776.868

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 774-776Synthesis of Novel Functional Materials for the...

Synthesis of Novel Functional Materials for the Photo-Catalytic Reaction

Abstract:

Zeolitic imidazolate frameworks-8(ZIF-8, Zn (MIM) ₂, MIM=2-methylimidazole) was synthesized by solvothermal (S) method and liquid-phase diffusion (D) method. ZIF-8 was then directly impregnated with phosphortungstic acid (PTA) at room temperature. After impregnation, the ZIF-8 retained its integrity of frameworks as proved by several characterizations. The textural properties are heavily dependent on preparation methods. Diffusion method produced well-crystallized particles with larger surface area, whereas solvothermal method yielded poorly-crystallized particles. ZIF-8 and ZIF-8-PTA were applied in the photo-degradation of methylene blue (MB) with the assistance of electron acceptor hydrogen peroxide, in which both of them were found to be highly active photo-catalytic. Moreover, the impregnation of PTA improved clearly the activity of catalysts due to the fast reversible multi-electron redox transformations.

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Periodical:

Advanced Materials Research (Volumes 774-776)

Pages:

868-871

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.774-776.868

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Online since:

September 2013

Authors:

Li Li Yang, Lin Yu, Gui Qiang Diao

Keywords:

Phosphotungstic Acid, Photo-Catalyst, Zeolitic Imidazolate frameworks-8

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