Selective oxidation of anilines to azobenzenes by an Ag nanoparticles photocatalyst

DOI码：10.1016/j.colsurfa.2023.132352

发表刊物：Colloids and Surfaces A: Physicochemical and Engineering Aspects

关键字：Selective oxidation of anilines to azobenzenes by an Ag nanoparticles photocatalyst, Colloids and Surfaces A: Abstract: Azobenzenes play an important role in dyes and pigments, food additives and pharmaceuticals. However, selective oxidation of aniline to valuable azobenzene under mild conditions is considerably challenging. Herein, through the reduction of boron clusters loaded with layered double hydroxides (LDHs), a nanometallic photocatalyst ZnTi LDH@[closo-B 12 H 12 ]@1.17%Ag(ZnTi LDH@B 12 H 12 @Ag) was synthesized. The catalyst catalyzed the synthesis of azobenzene from aniline. The catalyst achieved a high turnover frequency (TOF) of 54.9 h −1 and turnover number (TON) of 439.3. Under the reaction conditions of Na 2 CO 3 , at 40 °C and irradiation at 365 nm with an ultraviolet light source at atmospheric pressure, the yield of azobenzene reached 95.3% after 8 h of reaction and the catalytic activity remained above 80% after six recycles. This study reports a new synthetic catalyst for the selective oxidation of aniline compounds to azobenzene.

论文类型：期刊论文

论文编号：10.1016/j.colsurfa.2023.132352

学科门类：理学

文献类型：J

是否译文：否

发表时间：2023-09-10

发布期刊链接：https://doi.org/10.1016/j.colsurfa.2023.132352