Study on the preparation of photosensitive H2[Ag2(W10O32) (BPY)4] composite and its photocatalytic oxidation of cyclohexane.

Autor: SHI Dongying, CUI Chaojie, LI Huilin, NIE Zhouhuan, ZHENG Kaijun
Předmět:
Zdroj: Journal of Light Industry; jan2020, Vol. 35 Issue 1, p47-54, 8p
Abstrakt: Using [(n-C4H9)4N]4[W10O32], AgNO3 and 4,4'-bipyridine (BPY) as raw materials, the first photosensitive H2 [Ag2 (W10O32) ( BPY)4] material was synthesized by hydrothermal method ( named AgW- BPY ), and its structure, optical properties and performance of heterogeneous photocatalytic oxidation of cyclo- hexane were studied. The results showed that the covalent bond between the photosensitivity [W10O32]4- polyacid anion and the MOF framework made [W10O32]4- polyacid anion difficult to dissolve from the MOF framework, and the heterogeneous immobilization of anions W10O324- poly acid was successfully realized; AgW-BPY had a band gap value of 2. 30 eV, which had the potential as a photocatalyst; under visible light irradiation at room temperature, AgW-BPY had good photocatalytic activity for molecular oxygen oxidize cyclohexane to cyclohexanone and cyclohexan, the conversion efficiency was 76. 1%,and the conversion rate was still 74. 5% after 3 cycles of experiments. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index