1. Phosphotungstic salt used as an efficient catalyst to rapidly remove RhB from water solution.
- Author
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Xin, Xing, Tian, Xuerui, Zhang, Huixia, He, Xueli, Zhai, Xueliang, and Han, Zhangang
- Subjects
RHODAMINE B ,POLYOXOMETALATES ,AQUEOUS solutions ,HYDROTHERMAL synthesis ,X-ray diffraction - Abstract
Ag-modified polyoxometalate [Na(H2O)]2[Ag(bpf)]3[PW12O40] (1) (bpf = 2,4-di(4-pyridyl)furan) was synthesized through a hydrothermal reaction. Single-crystal X-ray diffraction analysis revealed that1consists of a hybrid 3D MOF constructed from Keggin-type polyanionic [PW12O40]3-and cationic Ag-bpf units. Ligand bpf in1wasin situtransferred from 1,3-bis(4-pyridyl)propane under the higher temperature and pressure of hydrothermal conditions. Catalytic performance of1as a heterogeneous catalyst for degradation of organic dye Rhodamine B (RhB) was investigated. Experimental results showed that hybrid1was especially active to catalytically degrade RhB under room temperature and natural light. RhB-containing solution (5.0 mg·Lā1) could be quickly bleached in a short time, and the high removal efficiency (97%) could be reached in a mere 30 min. The degradation mechanism of RhB was discussed. [ABSTRACT FROM PUBLISHER]
- Published
- 2018
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