Efficient Ag/CeO2 catalysts for CO oxidation prepared with microwave-assisted biosynthesis

Yang, Feng; Huang, Jiale; Odoom‐Wubah, Tareque; Hong, Yaping; Du, Mingming; Sun, Daohua; Jia, Lishan; Li, Qingbiao

doi:10.1016/j.cej.2015.01.062

Cited by 43 publications

(25 citation statements)

References 45 publications

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“…In 2015, Yang and co‐workers reported a microwave‐assisted biosynthetic method for the green and rapid synthesis of Ag NPs and their immobilization on the surface of CeO 2 using Cinnamomum camphora (CC) leaf extract . The Ag/CeO 2 catalyst was used as an efficient and recyclable catalyst in the oxidation of carbon monoxide (CO).…”

Section: Oxidation Reactionsmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

153

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Among different metallic nanoparticles, sliver nanoparticles (Ag NPs) are one of the most essential and fascinating nanomaterials. Importantly, among the metal based nanoparticles, Ag NPs play a key role in various fields such as biomedicine, biosensors, catalysis, pharmaceuticals, nanoscience and nanotechnology, particularly in nanomedicine. A main concern about the chemical synthesis of Ag NPs is the production of hazardous chemicals and toxic wastes. To overcome this problem, many research studies have been carried out on the green synthesis of Ag NPs using green sources such as plant extracts, microorganisms and some biopolymers without formation of hazardous wastes. Among green sources, plants could be remarkably valuable to exploring the biosynthesis of Ag NPs. In this review, the green synthesis of Ag‐based nanocatalysts such as Ag NPs, AgPd NPs, Au−Ag NPs, Ag/AgPd NPs, Ag/Cu NPs, Ag@AgCl NPs, Au−Ag@AgCl nanocomposite, Ag−Cr‐AC nanocomposite and Ag NPs immobilized on various supports such as Natrolite zeolite, bone, ZnO, seashell, hazelnut shell, almond shell, SnO2, perlite, ZrO2, TiO2, α‐Al2O3, CeO2, reduced graphene oxide (rGO), h‐Fe2O3@SiO2, and Fe3O4 using numerous plant extracts as reducing and stabilizing agents in the absence of hazardous surfactant and capping agents has been focused. This work describes the state of the art and future challenges in the biosynthesis of Ag‐based nanocatalysts. The fact about the application of living plants in metal nanoparticle (MNPs) industry is that it is a more economical and efficient biosynthesis biosynthetic procedure. In addition, the catalytic activities of the synthesized, Ag‐based recyclable nanocatalysts using various plant extracts in several chemical reactions such as oxidation, reduction, coupling, cycloaddition, cyanation, epoxidation, hydration, degradation and hydrogenation reactions have bben extensively discussed.

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Section: Oxidation Reactionsmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

153

View full text Add to dashboard Cite

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“…Most reports on metal core@ceria shell structures are focused on the catalysis in organics oxidation and CO oxidation [33][34][35]40]. However, systematic investigations on photocatalytic activities in water splitting of metal core@ceria shell nanostructures are still limited.…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of Ag@CeO2 core–shell plasmonic photocatalysts with enhanced visible-light photocatalytic performance

Fang

et al. 2015

Journal of Hazardous Materials

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“…In order to investigate the redox properties of the Ag catalyst prepared by different methods, H2-temperature program reduction (H2-TPR) measurements were carried out, as shown in Figure 4. There are two main H2-consumption peaks in the experimental temperature range for all catalysts; the peak at lower temperatures is attributed to the reduction process of Fe2O3 to Fe3O4 and the other broad peak at higher temperatures is associated with the transformations of Fe3O4→FeO→Fe 0 [33]. It is worth noting that the temperature of reduction peaks of Fe2O3 to Fe3O4 over the Ag-Fe catalyst (at 170 °C) is much lower than the other three catalysts, indicating that Fe2O3 can be more easily reduced by introducing Ag impregnated in MIL-100 (Fe).…”

Section: Characterization Of Catalystsmentioning

confidence: 95%

“…The noble metal catalysts containing Ag [33][34][35], Au [36,37], Pd [38], In [39] or Pt [40,41] have been used in the catalytic oxidation of CO to CO2 in the past few decades. Ag is a relatively inexpensive catalyst compared to Pt and Au, showing excellent low-temperature activities for many catalytic reactions, such as NOx abatement [42], ethylene epoxidation [43,44], and methane oxidation [45].…”

Section: Characterization Of Catalystsmentioning

confidence: 99%

Effects of Preparation Method on the Structure and Catalytic Activity of Ag–Fe2O3 Catalysts Derived from MOFs

Zhang

Yang

et al. 2017

Catalysts

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Abstract:In this work, Ag-Fe 2 O 3 catalysts were successfully prepared using several different methods. Our main intention was to investigate the effect of the preparation methods on the catalysts' structure and their catalytic performance for CO oxidation. The catalysts were characterized by X-ray diffraction (XRD), N 2 adsorption-desorption, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), H 2 -temperature program reduction (H 2 -TPR) and inductively coupled plasma optical emission spectroscopy (ICP-OES). Ag-Fe catalysts prepared by impregnating Ag into MIL-100 (Fe) presented the best catalytic activity, over which CO could be completely oxidized at 160 • C. Based on the characterization, it was found that more metallic Ag species and porosity existed on Ag-Fe catalysts, which could efficiently absorb atmospheric oxygen and, thus, enhance the CO oxidation.

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Efficient Ag/CeO2 catalysts for CO oxidation prepared with microwave-assisted biosynthesis

Cited by 43 publications

References 45 publications

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Facile synthesis of Ag@CeO2 core–shell plasmonic photocatalysts with enhanced visible-light photocatalytic performance

Effects of Preparation Method on the Structure and Catalytic Activity of Ag–Fe2O3 Catalysts Derived from MOFs

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