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APPLIED CATALYSIS A-GENERAL · 2012 · IF 3.903

Selective hydrogenation of o-chloronitrobenzene using supported platinum nanoparticles without solvent

Manhong Liu,Xinxin Mo,Yanyan Liu,Hailian Xiao,Yu Zhang,Jieying Jing,Vicki L. Colvin,William W. Yu

Colloidal platinum nanoparticles with 2.2 nm were immobilized on γ-iron oxide (γ-Fe 2 O 3 ) powder to make a supported catalyst (Pt/γ-Fe 2 O 3 ) with controlled Pt nanoparticle size and size distribution. This catalyst was used to catalyze the selective hydrogenation of o -chlorobenzene to o -chloroaniline without using any solvent; 99.9% selectivity at 99.95% conversion was achieved.

CAS / MDL: 1309-37-1

研究领域: 化学工程 · 催化科学

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Materials Science & Engineering C-Materials for Biological Applications · 2019 · IF 4.959

Pyrolysis preparation of poly-γ-glutamic acid derived amorphous carbon nitride for supporting Ag and γ-Fe2O3 nanocomposites with catalytic and antibacterial activity

Jin Feng,Qingshan Shi,Yulian Li,Jianfei Huang,Ruimin Li,Xiulin Shu,Wenru Li,Xiaobao Xie

Nanocomposites composed of Ag and γ-Fe 2 O 3 nanoparticles within poly-γ-glutamic acid (γ-PGA) derived amorphous carbon nitride (a-CN) films (Ag + γ-Fe 2 O 3 @a-CN) were synthesized by a one-step facile pyrolysis strategy. Transmission electron microscopy analysis shows that Ag and γ-Fe 2 O 3 nanoparticles were obtained in situ and homogeneously dispersed on the a-CN matrix. The average size of nanoparticles was 8.1 nm. The presence of γ-Fe 2 O 3 , Ag, and a-CN in the nanocomposite was confirmed by X-ray diffraction analysis, UV–visible absorption spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy. Ag + γ-Fe 2 O 3 @a-CN catalyzed the degradation of methyl orange. This catalyst was also recycled ten times by magnetic separation without any loss in efficiency. Ag + γ-Fe 2 O 3 @a-CN exhibited strong antibacterial activity against E . coli and S . aureus . It also exhibited excellent antibacterial activity even after 20 times magnetic recycling. This indicates that this is a promising recyclable antibacterial and catalyst for environmental applications.

CAS / MDL: 7782-61-8 7761-88-8

研究领域: 材料科学 · 纳米技术 · 环境科学 · 化学

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Selective hydrogenation of o-chloronitrobenzene using supported platinum nanoparticles without solvent

Pyrolysis preparation of poly-γ-glutamic acid derived amorphous carbon nitride for supporting Ag and γ-Fe2O3 nanocomposites with catalytic and antibacterial activity