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

被引：16
|
作者：
Zhang, Yu [1 ]
Li, Chao [1 ]
Liu, Xianfu [1 ]
Xu, Jing [1 ]
Yang, Xingkun [1 ]
Zhang, Zhang [1 ]
机构：
[1] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Peoples R China
来源：
GREEN ENERGY & ENVIRONMENT | 2021年 / 6卷 / 05期
关键词：
gamma-ray irradiation; Platinum; Graphene aerogel; Catalytic reduction; 4-nitrophenol; REDUCED GRAPHENE OXIDE; HIGHLY EFFICIENT; NANOPARTICLES; PERFORMANCE; CARBON; PT/GRAPHENE; COMPOSITES; AEROGEL; NANOCLUSTERS; FABRICATION;
D O I：
10.1016/j.gee.2020.06.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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 center dot 6H(2)O) with the assists of gamma-ray irradiation in the absence of any other reductants. Characterization studies indicated that the energy of gamma-ray irradiation and the hole scavenger isopropanol (IPA) played a vital role in forming small Pt nanoparticles with uniform size of similar to 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. (C) 2020, Institute of Process Engineering, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
引用
收藏
页码：734 / 742
页数：9
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