Biomass-Derived Activated Carbon Supported Fe3O4 Nanoparticles as Recyclable Catalysts for Reduction of Nitroarenes

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• 作者：Pitchaimani Veerakumar ; Irulandi Panneer Muthuselvam ; Chin-Te Hung ; King-Chuen Lin ; Fang-Cheng Chou ; Shang-Bin Liu
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2016
• 出版时间：December 5, 2016
• 年：2016
• 卷：4
• 期：12
• 页码：6772-6782
• 全文大小：704K
• ISSN：2168-0485

文摘

Highly porous beetroot-derived activated carbons incorporated with well-dispered 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.