Synthesis, structure, and photocatalytic property of a new hybrid compound based on unusual bi-silver-capped polyoxometalates

• The first example of compound based on bi-silver-capped POMs has been obtained.
• The compound shows good photocatalysis activity towards the decomposition of MB.
• The IR, PXRD, and elemental analyses of the title compound were studied in detail.

A new compound based on capped polyoxometalates (POMs), [Ag(phen)2]2(Agphen)2SiW12O40 (phen = 1,10-phenanthroline), has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction analysis, infrared spectrum, UV–vis electronic spectrum, elemental analyses, and powder X-ray diffraction pattern. The structural feature of compound 1 is that each [SiW12O40]4 − (SiW12) cluster capped by two (Agphen)+ fragments. To the best of our knowledge, the compound 1 represents the first example of hybrid compound based on bi-silver-capped POMs to date. The photocatalytic properties of compound 1 were also investigated in detail and the results of photocatalytic experiment show that compound 1 can be used as a photocatalyst towards the decomposition of organic pollutant methylene blue (MB).

A hybrid compound consisting of an unprecedented bi-silver-capped polyoxometalates has been hydrothermally synthesized, and its photodecomposition behavior towards methylene blue has been investigated.Figure optionsDownload as PowerPoint slide