Synthesis of p-aminophenol from p-nitrophenol over nano-sized nickel catalysts

Du, Yan; Chen, Hongling; Chen, Rizhi; Xu, Nanping

doi:10.1016/j.apcata.2004.09.018

Cited by 309 publications

(190 citation statements)

References 12 publications

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“…It is well known that 4-aminophenol (4-AP) is very useful and important in many applications that include analgesic and antipyretic drugs, photographic developer, corrosion inhibitor, anti-corrosion lubricant, and so on [42,43]. The reduction of 4-NP by NaBH 4 in the presence of noble metal nanoparticles as catalysts has been intensively investigated for the efficient production of 4-AP [44,45].…”

Section: Methodsmentioning

confidence: 99%

Novel synthesis of Au nanoparticles using fluorescent carbon nitride dots as photocatalyst

Qin

Chang

et al. 2012

Gold Bull

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Section: Methodsmentioning

confidence: 99%

Novel synthesis of Au nanoparticles using fluorescent carbon nitride dots as photocatalyst

Qin

Chang

et al. 2012

Gold Bull

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“…Hence, it is desirable to develop an effective method for the removal of 4-NP. A promising approach involves the catalytic reduction of 4-NP to 4-AP, an important intermediate for the manufacture of analgesic and antipyretic drugs [46]. In this study, the catalytic performances of the AuAgNPs @ ZnO whiskers and paper were investigated for the aqueous reduction of 4-NP to 4-AP with NaBH 4 .…”

Section: @ Zno Whisker and Papermentioning

confidence: 99%

In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications

2011

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Bimetallic nanoparticles have attracted significant attention as their electrochemical and catalytic properties being superior to those of the individual component nanoparticles. In this study, gold-silver hybrid nanoparticles (AuAgNPs) with an Au core -Ag shell nanostructure were successfully synthesized on zinc oxide (ZnO) whiskers. The as-prepared nanocatalyst, denoted AuAgNPs @ ZnO whisker, exhibits an excellent catalytic efficiency in the aqueous reduction of 4-nitrophenol to 4-aminophenol; the turnover frequency was up to 40 times higher than that of each component nanoparticle. Their unique features were attributed to the electronic ligand effect at the bimetallic interface. In addition, the AuAgNPs were synthesized on a ZnO whisker-containing paper with a fiber-network microstructure, which was prepared via a papermaking technique. The paper-structured AuAgNPs composite possessed both a paper-like practical utility and a good catalytic performance. Furthermore, the on-paper synthesis process for these bimetallic nanocatalysts is facile. These easy-to-handle nanocatalyst hybrid composites are expected to find a wide range of applications in various chemical and catalytic processes.

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“…Silver (Ag), 8,9 platinum (Pt), 10 copper (Cu), 11,12 nickel (Ni), 13,14 iron (Fe), 15 and gold (Au) 16,17 metal nanoparticles have been extensively used as catalysts in various reactions. For example, p-nitrophenol (p-NP), 9,18 nitrobenzene (NB), 19,20 o-nitrophenol (o-NP) 21,22 and m-nitrophenol 22 can be reduced in aqueous medium using metal nanoparticles as catalysts.…”

Section: −7mentioning

confidence: 99%

Effect of acrylic acid feed contents of microgels on catalytic activity of silver nanoparticles fabricated hybrid microgels

Farooqi¹,

Khan²,

Begum³

et al. 2015

Turk J Chem

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Abstract:We synthesized poly(N-isopropylacrylamide-co-acrylic acid) microgels with 1, 3, 5, and 7 mol percentage of acrylic acid. Silver nanoparticles were fabricated inside these microgels at room temperature. Pure microgels were characterized by Fourier transform infrared (FTIR) spectroscopy and dynamic light scattering (DLS). Hybrid microgels were characterized by UV-Visible spectroscopy. The size of the silver nanoparticles increased with an increase in the content of acrylic acid. Catalytic activity of these hybrid microgels was investigated using UV-Visible spectrophotometry.Induction time decreased from 8.8 to 2.6 min and the value of apparent rate constant decreased from 0.226 to 0.109 min −1 , when the content of acrylic acid was increased from 1 to 7 mol %. This decrease in induction time was due to decrease in the surface area of nanoparticles present within the microgels with an increase in the feed contents of acrylic acid. The decrease in the value of apparent rate constant was due to an increase in the size of nanoparticles fabricated within the microgels with an increase in mol percentage of acrylic acid. The linear relation between apparent rate constant and feed contents of acrylic acid can be used for quantitative analysis of contents of acrylic acid present in polymer microgels.

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Synthesis of p-aminophenol from p-nitrophenol over nano-sized nickel catalysts

Cited by 309 publications

References 12 publications

Novel synthesis of Au nanoparticles using fluorescent carbon nitride dots as photocatalyst

Novel synthesis of Au nanoparticles using fluorescent carbon nitride dots as photocatalyst

In Situ Synthesis of Bimetallic Hybrid Nanocatalysts on a Paper-Structured Matrix for Catalytic Applications

Effect of acrylic acid feed contents of microgels on catalytic activity of silver nanoparticles fabricated hybrid microgels

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