A new inorganic 2D framework based on Bi-bismuth-capping Keggin polyoxometalate with photodegradation and selective absorption of organic dyes
Jiangfeng Song , Jun Wang , Ruisha Zhou , Xiaobing Cui
Chemical Research in Chinese Universities ›› 2017, Vol. 33 ›› Issue (3) : 333 -338.
A new inorganic 2D framework based on Bi-bismuth-capping Keggin polyoxometalate with photodegradation and selective absorption of organic dyes
A new purely inorganic 2D framework, {PMo12O40Bi2(H2O)2}·4H2O(1), was synthesized under solvothermal condition and characterized by infrared(IR) spectroscopy, thermal gravimetric analysis, UV-Vis spectroscopy, powder X-ray diffraction and single-crystal X-ray diffraction. Structural analysis reveals that compound 1 consists of Keggin unit {PMo12O40} with two bismuth atoms capping two opposite pits, leading to the bi-bismuth-capping Keggin polyoxometalate. Compound 1 not only displays excellent photodegradation activity for methyl orange(MO), but also has a high absorption capacity for rhodamine B(RhB) and methylene blue(MB). Moreover, compound 1 is extremely stable and easily separated from the reaction system for reuse.
Bismuth / Polyoxometalate / Keggin / Absorption / Photocatalytic ability
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