Novel yolk-shell-structured Fe3O4@γ-AlOOH nanocomposite modified with Pd nanoparticles as a recyclable catalyst with excellent catalytic activity

被引：38

作者：

Cui, Xueliang ^{[1
]}

Zheng, Yunfeng ^{[2
]}

Tian, Meng ^{[1
]}

Dong, Zhengping ^{[1
]}

机构：

[1] Lanzhou Univ, Minist Educ, Lab Special Funct Mat & Struct Design, Coll Chem & Chem Engn,Gansu Prov Engn Lab Chem, Lanzhou 730000, Peoples R China

[2] PetroChina, Petrochem Res Inst, Lanzhou Petrochem Res Ctr, Lanzhou 730060, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2017年 / 416卷

关键词：

Yolk-shell-structured materials; Fe3O4@gamma-AlOOH-YSMs; Pd/Fe3O4@gamma-AlOOH-YSMs nanocatalyst; Excellent Catalytic activity; Recyclability; MESOPOROUS SILICA MICROSPHERES; HIGHLY EFFICIENT; RECOVERABLE CATALYST; GREEN SYNTHESIS; FACILE SYNTHESIS; ORGANIC-DYES; PALLADIUM NANOPARTICLES; HYDROGENATION REACTIONS; GOLD NANOPARTICLES; HIGH-PERFORMANCE;

D O I：

10.1016/j.apsusc.2017.04.048

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：

A novel yolk-shell-structured material (Fe3O4@gamma-AlOOH-YSMs) with hierarchical gamma-AlOOH flakes as the mesoporous shell and Fe3O4 nanoparticles (NPs) in the hollow core was prepared by using Fe3O4@SiO2 NPs as the seeds as well as NaAlO2 and urea as the precursor. The prepared Fe3O4@gamma-AlOOH-YSMs were used as a catalyst support for fabricating a Pd/Fe3O4@gamma-AlOOH-YSMs nanocatalyst with no obvious aggregation of the Pd NPs. The Pd/Fe3O4@gamma-AlOOH-YSMs nanocatalyst was utilized for the catalytic reduction of the widely used and highly toxic 4-nitrophenol, rhodamine B, methylene blue, and methyl orange; and showed excellent catalytic activity as compared with other noble-metal-based catalysts. Furthermore, the Pd/Fe3O4@gamma-AlOOH-YSMs nanocatalyst also can be easily separated from the reaction mixture and reused for at least ten times without any obvious decrease in the catalytic activity, indicating its reusability and stability. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：103 / 111

页数：9

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