Swift reduction of nitroaromatics by gold nanoparticles anchored on steam-activated carbon black via simple preparation.

Yukui Fu, Cui Lai, Wenjing Chen, Huan Yi, Xigui Liu, Xiuqin Huo, Weicheng Cao, Zhuotong Zeng, Lei Qin

Environmental science and pollution research international 2022 Aug

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Gold (Au) nanoparticles supported on certain platforms display highly efficient activity on nitroaromatics reduction. In this study, steam-activated carbon black (SCB) was used as a platform to fabricate Au/SCB composites via a green and simple method for 4-nitrophenol (4-NP) reduction. The obtained Au/SCB composites exhibit efficient catalytic performance in reduction of 4-NP (rate constant kapp = 2.1925 min-1). The effects of SCB activated under different steam temperature, Au loading amount, pH, and reaction temperature and NaBH4 concentration were studied. The structural advantages of SCB as a platform were analyzed by various characterizations. Especially, the result of N2 adsorption-desorption method showed that steam activating process could bring higher surface area (from 185.9689 to 249.0053 m2/g), larger pore volume (from 0.073268 to 0.165246 cm3/g), and more micropore for SCB when compared with initial CB, demonstrating the suitable of SCB for Au NP anchoring, thus promoting the catalytic activity. This work contributes to the fabrication of other supported metal nanoparticle catalysts for preparing different functional nanocomposites for different applications. © 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

Citation

Yukui Fu, Cui Lai, Wenjing Chen, Huan Yi, Xigui Liu, Xiuqin Huo, Weicheng Cao, Zhuotong Zeng, Lei Qin. Swift reduction of nitroaromatics by gold nanoparticles anchored on steam-activated carbon black via simple preparation. Environmental science and pollution research international. 2022 Aug;29(40):60953-60967