Catalytic activity of palladium nanocubes/multiwalled carbon nanotubes structures for methyl orange dye removal

Cano, Omar; González, Claudia A. Rodríguez; Paz, Juan; Madrid, Patricia Amezaga; García-Casillas, Perla E.; Hernández, Ana Laura Martínez; Perez, Carlos A.

doi:10.1016/j.cattod.2016.06.053

Cited by 53 publications

(11 citation statements)

References 35 publications

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“…Furthermore, the nanostructured material synthesized by MWCNTs-supported palladium (Pd) nanocubes is used to remove methyl orange (MO) [158]. The nanocubes can be synthesized in two ways (i) by reducing H 2 PdC 14 (ii) by a non-covalent method that involves the use of a surfactant for carbon nanotubes functionalization.…”

Section: Water Treatmentmentioning

confidence: 99%

“…MWCNTs result in decontamination, by adsorbing organic dyes on its surface, which can be catalyzed by Pd nanocubes, by which the MWCNTs/Pd-based nanostructured material has enhanced decontamination efficiency instead of untreated MWCNTs. However, Pd nanocubes alone neither adsorb nor decompose the contaminants, to enhance decontamination efficiency [158]. Some other organic toxins other than dyes, are drugs, phenols, aromatic amines, insecticides, and other poisonous organics.…”

Section: Water Treatmentmentioning

confidence: 99%

“…UV-vis spectra showing methyl orange degradation using MWCNTs/Pd nanostructured material. Reproduced with permission from[158]. Copyright Elsevier, 2016.…”

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confidence: 99%

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An Overview of the Recent Progress in the Synthesis and Applications of Carbon Nanotubes

et al. 2019

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Carbon nanotubes (CNTs) are known as nano-architectured allotropes of carbon, having graphene sheets that are wrapped forming a cylindrical shape. Rolling of graphene sheets in different ways makes CNTs either metals or narrow-band semiconductors. Over the years, researchers have devoted much attention to understanding the intriguing properties CNTs. They exhibit some unusual properties like a high degree of stiffness, a large length-to-diameter ratio, and exceptional resilience, and for this reason, they are used in a variety of applications. These properties can be manipulated by controlling the diameter, chirality, wall nature, and length of CNTs which are in turn, synthesis procedure-dependent. In this review article, various synthesis methods for the production of CNTs are thoroughly elaborated. Several characterization methods are also described in the paper. The applications of CNTs in various technologically important fields are discussed in detail. Finally, future prospects of CNTs are outlined in view of their commercial applications.

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Section: Water Treatmentmentioning

confidence: 99%

Section: Water Treatmentmentioning

confidence: 99%

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An Overview of the Recent Progress in the Synthesis and Applications of Carbon Nanotubes

et al. 2019

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“…The strong diffraction peaks at 26.1 • and 42.9 • are attributed to the hexagonal graphite structure (002) and (100), which suggests CNTs have a hexagonal graphite structure [29]. The Pt-out/CNTs show three diffraction peaks at 39.7 • , 46.2 • and 67.4 • , which are attributed to the Pt (111), (200), and (220) peaks, respectively, indicating the presence of Pt in a face-centered cubic (fcc) structure.…”

Section: Resultsmentioning

confidence: 99%

Hydrogenation of Phenol over Pt/CNTs: The Effects of Pt Loading and Reaction Solvents

Cao

Zhu

et al. 2017

Catalysts

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Carbon nanotubes (CNTs)-supported Pt nanoparticles were prepared with selective deposition of Pt nanoparticles inside and outside CNTs (Pt-in/CNTs and Pt-out/CNTs). The effects of Pt loading and reaction solvents on phenol hydrogenation were investigated. The Pt nanoparticles in Pt-in/CNTs versus Pt-out/CNTs are smaller and better dispersed. The catalytic activity and reuse stability toward phenol hydrogenation both improved markedly. The dichloromethane-water mixture as the reaction solvent, compared with either pure medium, decreased the catalytic activity toward phenol hydrogenation and selectivity of cyclohexanone over Pt-in/CNTs, but significantly improved the catalytic activity toward phenol hydrogenation and selectivity of cyclohexanone over Pt-out/CNTs.

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“…The XRD patterns of catalysts with different loading modes are shown in Figure 3. All catalysts exhibit two peaks at 26.1 and 43.1°, which are ascribed to the hexagonal graphite structures (002) and (100), respectively, indicating that CNTs have a hexagonal graphite structure [14]. The XRD patterns of Pt-in/CNTs show no peak attributable to Pt, but a small hump at nearly 39.…”

Section: Introductionmentioning

confidence: 95%

In-Situ Liquid Hydrogenation of m-Chloronitrobenzene over Fe-Modified Pt/Carbon Nanotubes Catalysts

et al. 2018

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Abstract:In-situ liquid-phase hydrogenation of m-chloronitrobenzene (m-CNB) based on aqueous-phase reforming (APR) of ethanol and catalytic hydrogenation was carried out over Fe-modified Pt/carbon nanotubes (CNTs) catalysts. The effects of Pt loading over CNTs and Fe modification on the catalytic performance of Pt/CNTs catalysts were studied. In-tube loading of Pt particles, compared with out-tube loading, considerably improved the catalytic activity. With in-tube loading, Fe-modified Pt/CNTs catalysts further improved the m-CNB in-situ hydrogenation performance. After Fe modification, Pt-Fe/CNTs catalysts formed, inside CNTs, a Pt-Fe alloy and iron oxides, which both improved catalytic hydrogenation performance and significantly enhanced ethanol APR hydrogen producing performance, thereby increasing the m-CNB in-situ hydrogenation reactivity.

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Catalytic activity of palladium nanocubes/multiwalled carbon nanotubes structures for methyl orange dye removal

Cited by 53 publications

References 35 publications

An Overview of the Recent Progress in the Synthesis and Applications of Carbon Nanotubes

An Overview of the Recent Progress in the Synthesis and Applications of Carbon Nanotubes

Hydrogenation of Phenol over Pt/CNTs: The Effects of Pt Loading and Reaction Solvents

In-Situ Liquid Hydrogenation of m-Chloronitrobenzene over Fe-Modified Pt/Carbon Nanotubes Catalysts

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