A New Multi-Copper-Substituted Tetramer Tungstoantimonate: Synthesis, Photocatalytic and Electrochemical Properties
| Autor: | Na Xu, Lin Yang, Zhong Zhang, Xiaohui Li |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Thermogravimetric analysis
Chemistry Infrared spectroscopy 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Biochemistry 0104 chemical sciences Catalysis Tetramer Photocatalysis General Materials Science 0210 nano-technology Photodegradation Powder diffraction Nuclear chemistry |
| Zdroj: | Journal of Cluster Science. 33:1249-1255 |
| ISSN: | 1572-8862 1040-7278 |
| Popis: | Under hydrothermal conditions, a new “S”-shaped Cu-substituted tetramer tungstoantimonate, HKNa2(H2en)6[Cu(en)(H2O)]2[KNaCu3(H2O)7(B-a-SbW9O33)2]2⋅16H2O (1, en = 1,2-ethylenediamine) was synthesized in reactions of the Na9[SbW9O33]·19.5H2O precursor with CuCl2⋅2H2O and potassium acetate in the presence of en and characterized by IR spectrum, thermogravimetric analysis (TGA), powder X-ray diffraction (PXRD) and single-crystal X-ray diffraction, respectively. Polyoxoanion 1 consists of two asymmetric sandwich-type polyanions {KNaCu3(H2O)7(B-a-SbW9O33)2} linked by two structurally equivalent [Cu4(en)(H2O)]2+ bridges. The electrochemical properties and photocatalytic activities have been investigated, displaying outstanding photocatalytic and electrocatalytic activities for the photodegradation of MB and H2O2/NO2−/BrO3− reduction. |
| Databáze: | OpenAIRE |
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