Volume 6 Issue 5
Oct.  2021
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Yu Zhang, Chao Li, Xianfu Liu, Jing Xu, Xingkun Yang, Zhang Zhang. Facile γ-ray irradiation synthesis of Pt/GA nanocomposite for catalytic reduction of 4-nitrophenol. Green Energy&Environment, 2021, 6(5): 734-742. doi: 10.1016/j.gee.2020.06.016
Citation: Yu Zhang, Chao Li, Xianfu Liu, Jing Xu, Xingkun Yang, Zhang Zhang. Facile γ-ray irradiation synthesis of Pt/GA nanocomposite for catalytic reduction of 4-nitrophenol. Green Energy&Environment, 2021, 6(5): 734-742. doi: 10.1016/j.gee.2020.06.016
shu

Facile γ-ray irradiation synthesis of Pt/GA nanocomposite for catalytic reduction of 4-nitrophenol

doi: 10.1016/j.gee.2020.06.016

  • College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, 464000, China

Funds:

This work is supported by the NSFC (No.21703193), Key Science and Technology Research Projects of Henan Province (No.182102310791), Key Scientific Research Project Plan of Colleges and Universities in Henan Province (No.18B520036), and the Nanhu Scholars Program for Young Scholars of Xinyang Normal University in China. Special thanks give to the analysis test center of Xinyang Normal University for the data analysis and collection works.

  • Received date 18 December 2019, Accepted date 24 June 2020, RevRecd date 09 June 2020, Publish date 31 October 2021,
    Abstract

  • Up to now, facile and pollution-free routes for catalyst preparation are in high demand. In this study, a green and cost-effective strategy was successfully developed to construct platinum/graphene aerogel (Pt/GA) nanocomposites by the co-reduction of graphene oxides (GO) and chloroplatinic acid (H2PtCl6·6H2O) with the assists of γ-ray irradiation in the absence of any other reductants. Characterization studies indicated that the energy of γ-ray irradiation and the hole scavenger isopropanol (IPA) played a vital role in forming small Pt nanoparticles with uniform size of ∼3 nm on the surface of graphene aerogel (GA). Furthermore, Pt/GA synthesized with a mass ratio of 2:1 (Pt/GA-2) exhibited a lowest activation energy value and outstanding catalytic properties for the reduction of 4-nitrophenol (4-NP). The excellent catalytic and cycling performance suggest that Pt/GA-2 catalyst has a promising prospect for the reduction of nitroaromatic compounds in wastewater treatment and other industrial applications.

     

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