AgCl@Ag composites with rough surfaces as bifunctional catalyst for the photooxidation and catalytic reduction of 4-nitrophenol

Zheng, Yuanchuan; Shu, Jinxia; Wang, Zhonghua

doi:10.1016/j.matlet.2015.06.033

Cited by 61 publications

(24 citation statements)

References 14 publications

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“…4‐Nitrophenol (4‐NP) is toxic to the environment even at small amounts, and the degradation of 4‐nitrophenol is very difficult owing to its high stability and solubility in water 40. The reduction product of 4‐nitrophenol (i.e., 4‐aminophenol, 4‐AP) is less harmful to the environment than 4‐nitrophenol and is more biodegradable 41. In addition, 4‐aminophenol is used in various applications such as preparation of antipyretic and analgesic drugs, photographic development, and anticorrosion lubricants 40.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Kandula

Jeevanandam

2016

Eur J Inorg Chem

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Cu 2 O@Ag polyhedral core-shell nanoparticles with different morphologies (rhombicuboctahedral, cuboctahedral, truncated octahedral, and octahedral) have been successfully synthesized by a thermal decomposition approach. The Cu 2 O@Ag polyhedral core-shell nanoparticles were characterized by X-ray diffraction, electron microscopy, surface-area analysis, and diffuse reflectance spectroscopy. The XRD results confirm the presence of Cu 2 O and silver in the Cu 2 O@Ag samples. Electron microscopy studies prove the formation of a shell of silver nanoparticles on the polyhedral Cu 2 O microcrystals. The diffuse reflectance spectra of the Cu 2 O@Ag polyhedral coreshell nanoparticles show band-gap absorption owing to Cu 2 O as well as surface plasmon resonance owing to silver nanoparti- [a]

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Section: Resultsmentioning

confidence: 99%

Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Kandula

Jeevanandam

2016

Eur J Inorg Chem

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“…The hydrogenation method has the advantages of being mild, efficient, rapid, and environmentally friendly, [8][9][10] meeting the "green chemistry" concept. Commonly used catalysts include noble metals (Au, Pt, Pd, Ru, Rh) and non-precious metals (Ag, [11][12][13][14][15][16][17][18][19][20] Cu, Ni, Fe, Mn). Au nanoparticles (Au-NPs) have more efficient 21 catalytic activity under mild conditions.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Degradation of 4-Nitrophenol in Polluted Water by Three-Dimensional Gold Nanoparticles/Reduced Graphene Oxide Microspheres

Li¹,

Zhang²,

Wang³

et al. 2019

Eng. Sci.

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Microspheres as catalysts catalyst supports have attracted a great deal of attention over the last two decades. Here, gold nanoparticles (Au-NPs) encapsulated within the reduced graphene oxide microspheres (rGO microspheres) were prepared by using a spray-drying method. The Au-NPs were distributed evenly through the rGO microsphere composite. The mass content of Au-NPs in the rGO microspheres composite reached 30.3%, and the average size of the Au-NPs was 10.5±2.5 nm. The morphologies and structural characteristics of the materials were determined by scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD) patterns. The as-prepared composite was used to catalyze the reduction of 4-nitrophenol to 4-aminophenol in the presence of excess sodium borohydride and exhibited high catalytic activity. The catalysis process was monitored by UV spectroscopy, and the −3-1 4 first order rate constant of the catalytic reaction K was 1.96×10 s , and the activation energy E was found to be 3.5×10 J/mol. The catalytic a experiment results indicated the Au/rGO microspheres prepared have a great application for friendly environment aspects.

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“…4-NP has been listed as a highly toxic compound and it is carcinogenic to humans [2]. Several methods including microbial degradation [3], electrochemical treatment [4], adsorption [5] and reduction [6][7][8][9] have been developed for removing the 4-NP. The catalytic reduction of 4-NP to 4-aminophenol (4-AP) is an environmental remediation procedure because 4-AP has low toxicity than 4-NP [10,11].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of the CuO nanoparticles using Euphorbia Chamaesyce leaf extract and investigation of their catalytic activity for the reduction of 4‐nitrophenol

Maham

Sajadi

Kharimkhani

et al. 2017

IET nanobiotechnol.

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Through this study an eco-friendly, simple, efficient, cheap and biocompatible approach to the biosynthesis and stabilisation of CuO nanoparticles (NPs) using the Euphorbia Chamaesyce leaf extract is presented. The CuO NPs were monitored and characterised by field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier transformed infrared spectroscopy, transmission electron microscope and UV-visible spectroscopy. The biosynthesised CuO NPs showed good catalytic activity for the reduction of 4-nitrophenol (4-NP) in water during 180 s and reused 4 times without considerable loss of activity.

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AgCl@Ag composites with rough surfaces as bifunctional catalyst for the photooxidation and catalytic reduction of 4-nitrophenol

Cited by 61 publications

References 14 publications

Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Catalytic Degradation of 4-Nitrophenol in Polluted Water by Three-Dimensional Gold Nanoparticles/Reduced Graphene Oxide Microspheres

Biosynthesis of the CuO nanoparticles using Euphorbia Chamaesyce leaf extract and investigation of their catalytic activity for the reduction of 4‐nitrophenol

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AgCl@Ag composites with rough surfaces as bifunctional catalyst for the photooxidation and catalytic reduction of 4-nitrophenol

Cited by 61 publications

References 14 publications

Synthesis of Cu2O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Synthesis of Cu2O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Catalytic Degradation of 4-Nitrophenol in Polluted Water by Three-Dimensional Gold Nanoparticles/Reduced Graphene Oxide Microspheres

Biosynthesis of the CuO nanoparticles using Euphorbia Chamaesyce leaf extract and investigation of their catalytic activity for the reduction of 4‐nitrophenol

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Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications

Synthesis of Cu₂O@Ag Polyhedral Core–Shell Nanoparticles by a Thermal Decomposition Approach for Catalytic Applications