期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 4, 期 12, 页码 6772-6782出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.6b01727
关键词
Porous carbon; Fe3O4; Microwave irradaition; Heterogeneous catalysis; Nitroaromatics
资金
- Ministry of Science and Technology (MOST), Taiwan [MOST 104-2113-M-001-019]
Highly porous beetroot-derived activated carbons incorporated with welldispered magnetite nanoparticles (Fe3O4 NPs; average size ca. 3.8 +/- 0.5 nm) were fabricated via a microwave-assisted synthesis route. The magnetic Fe3O4@BRAC catalysts so-fabricated were characterized by a variety of diffent physicochemical teniques, viz. XRD, FE-TEM, VSM, gas physisorption/chemisorption, TGA, XPS, Raman, ICP-AES, and FT-IR spectroscopy. The as-prepared catalysts were exploited for heterogeneous phase reduction of a series of nitroaromatics (RNO2; R = H, OH, NH2, CH3, and COOH) under KOH as a base, isopropyl alcohol acting as a hydrogen donor as well as solvent and also tested with other solvents. The reaction system not only exhibits excellent activity with high anilines yield but also represents a green and durable catalytic process, which facilitates facile operation, easy separation, and catalyst recycle.
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