We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Grafting Transition Metal-Organic Fragments onto W/Ta Mixed-Addendum Nanoclusters for Broad-Spectrum-Driven Photocatalysis.
- Authors
Zhang, Tian‐Zhan; Yao, Shuang; Zhang, Zhi‐Ming; Lu, Ying; Li, Yang‐Guang; Wang, En‐Bo
- Abstract
Two new transition-metal (TM)-containing polytantalotungstates, CsNa2H[Cu(bpy)(H2O)3]3{[Cu(bpy)2]2[Cu(bpy)(H2O)2]3[Ta4O6(SiW9Ta3O40)4]} ⋅17 H2O ( 1) and K4Na4H4[Ta4O6(SiW9Ta3O40)4][Cu(apy)(H2O)2]4 ⋅42 H2O ( 2) (bpy=2,2′-bipyridine, apy=3-aminopyridine), have been synthesised under hydrothermal conditions. Both compounds 1 and 2 were determined and characterised by single-crystal X-ray diffraction analysis, thermogravimetric analysis, IR spectroscopy, UV/Vis spectroscopy and elemental analysis. Compounds 1 and 2 contain W/Ta mixed-addendum nanoclusters decorated by TM-organic fragments. Compounds 1 and 2 are the first TM-containing polytantalotungstates promise a more diverse set of structures of the polytantalotungstate family. The obtained materials can harvest a wide spectrum of solar light, from UV to near-infrared (NIR) wavelength. Photocatalytic study revealed that compounds 1 and 2 exhibited UV- and visible-light-driven photocatalytic water splitting activity. Compound 1 could also be used as a catalyst for the photocatalytic decomposition of 2,4-dichlorophenol in water with NIR-light irradiation. This is the first NIR photocatalyst obtained in polyoxometalate chemistry.
- Subjects
METAL-organic frameworks; PHOTOCATALYSIS; DICHLOROPHENOLS; POLYOXOMETALATES; X-ray diffraction; TUNGSTEN; TANTALUM
- Publication
ChemPlusChem, 2014, Vol 79, Issue 8, p1153
- ISSN
2192-6506
- Publication type
Article
- DOI
10.1002/cplu.201402094