The reduction of 4-nitrophenol and 2-nitroaniline by the incorporation of Ni@Pd MNPs into modified UiO-66-NH<sub>2</sub> metal–organic frameworks (MOFs) with tetrathia-azacyclopentadecane

Sadeghzadeh, Seyed Mohsen; Zhiani, Rahele; Emrani, Shokufe

doi:10.1039/c7nj03732e

Cited by 57 publications

(32 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such metal nanoparticles play a vital role in the catalytic reduction showing effective performance compared to other bare nanomaterials. In order to further improve their catalytic activity, the metal nanoparticles were incorporated with diverse nanomaterials including carbon‐based materials, transition metal dichalcogenides (TMD), and porous organic cages …”

Section: Introductionmentioning

confidence: 99%

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Dhenadhayalan

Hsin

Lin

2019

Adv Materials Inter

View full text Add to dashboard Cite

and textile. [2,7] It can be readily bound to biomolecules and consequently used as a strain to tissue and cells. [8] However, the application of abnormal level of EY becomes toxic and unfriendly to both the environment and living things. The development of reduction/degradation of nitro compound and dye is thus much needed to convert these materials into harmless products. For instance, the 4-NP and EY could be catalytically reduced into the formation of 4-aminophenol and reduced form of EY, respectively, and believe that this process could become potentially an effective way to treat 4-NP and EY in polluted water. Accordingly, the design and development of proficient catalyst are a significant task for the catalytic reduction of 4-NP and EY with aspects of the efficient and fast process. The nanomaterial-based catalysts are enormously developed for their superior catalytic performance in the reduction of pollutants. [9][10][11][12][13] In general, metal nanoparticles are usually adopted for the catalysis application; especially palladium nanoparticles (Pd NPs) exhibited excellent catalytic activities. [14][15][16] Such metal nanoparticles play a vital role in the catalytic reduction showing effective performance compared to other bare nanomaterials. In order to further improve their catalytic activity, the metal nanoparticles were incorporated with diverse nanomaterials including carbon-based materials, transition metal dichalcogenides (TMD), and porous organic cages. [17][18][19][20][21][22][23][24][25] Compared to other fluorescent nanomaterials, the C-dots can be easily synthesized from different kind of sources including organic molecules, biowastes, proteins, amino acids, and so on. [26][27][28][29][30][31][32] Moreover, the surface of C-dots can be modified with several capping agents to improve their fluorescence properties according to the applications. [33][34][35][36][37] That's why the C-dots have been extensively utilized in the fields of chemo-and biosensors, and optoelectronic applications. Thus far, the C-dots are much less utilized in the catalysis as in the sensing application. By taking advantage of C-dots and Pd NPs, this work aims to develop a superior multifunctional nanohybrid in the multiple applications including chemical sensor and catalysis.With this intention, we have synthesized carbon-dots to encapsulate palladium nanoparticles (Pd/C-dots) by the photochemical method. Prior to the synthesis of Pd/C-dots, Palladium nanoparticles encapsulated in the carbon dots (Pd/C-dots) are demonstrated to play a role of multifunctional nanohybrid in the synergetic applications of sensor and catalysis. The photochemical method is applied to synthesize Pd/C-dots in which Pd nanoparticles (NPs) are dispersedly encapsulated by C-dots layer. The nanohybrid can function as a fluorescent sensor and reductive catalyst, due to the inherent properties of C-dots and Pd NPs, respectively. The Pd/C-dots exhibit a highly selective and sensitive detection toward the nickel (Ni 2+ ) ion with a detection limit of ...

show abstract

Section: Introductionmentioning

confidence: 99%

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Dhenadhayalan

Hsin

Lin

2019

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…However, these metal NPs suffer from the property of self‐aggregation to cause agglomeration of metal NPs, which may downgrade their catalytic performance. In order to prevent self‐aggregation, the metal NPs are chemically modified with several materials including graphene, graphene oxide, carbon nanotube, metal oxides, porous organic cages, etc . Accordingly, the metal NPs deposited on two‐dimensional (2D) materials showed enhanced catalytic activities as a result of the large surface area of 2D materials and dispersion of metal NPs.…”

Section: Introductionmentioning

confidence: 99%

Metal Nanoparticles Anchored on Rhenium Disulfide Nanosheets as Catalysts for the Reduction of Aromatic Nitro Compounds

et al. 2018

View full text Add to dashboard Cite

The nanohybrids of noble metal (M = Ag, Au, Pd, Pt, and Ru) nanoparticle-decorated rhenium disulfide nanosheets (ReS 2 NSs) were demonstrated as excellent catalysts towards the reduction of aromatic nitro compounds. The M/ReS 2 nanohybrids were synthesized by facile hydrothermal method and characterization results proved that each metal nanoparticle was anchored on the ReS 2 NSs. These nanohybrids exhibited superior catalytic performance towards the reduction of aromatic nitro compounds including 4-nitrophenol, 2nitroaniline, and nitrobenzene. Interestingly, the Ru/ReS 2 and Pd/ReS 2 showed enhanced catalytic reduction compared to Ag/ReS 2 , Au/ReS 2 , and Pt/ReS 2 and also showed significant catalytic stability due to metal nanoparticles anchored strongly on the surface of ReS 2 NSs. Moreover, these M/ReS 2 nanohybrids turned out to have much better catalytic performance compared to noble metal nanoparticle-based catalysts. A plausible reduction mechanism was proposed for each nitro compound. It was verified that the metal-nanoparticle-mediated hydrogen transfer was involved in the reduction of nitro compounds to amines. This report demonstrates the catalytic activities for metal nanoparticledecorated ReS 2 nanohybrids, which can serve as a paradigm to open up a future trend in the design of transition metal dichalcogenides nanohybrids as superior catalysts.

show abstract

“…19 Additionally, with the increasing of the Ti to Zr molar ratio, the partial substitution of larger Zr in Zr-O oxoclusters replaced by smaller Ti, this suggests that Zr in the original NH 2 -UiO-66 has been substituted by Ti.NH 2 -UiO-66 framework was reformed and substituted by the titanium species with Ti-O clusters,NH 2 -UiO-66 shows not well-ordered porous structure. 20 The FTIR spectra of these Ti/NH 2 -UiO-66 samples exhibit similar characteristic peaks, as shown in Figure 2.The two intense bands around 1569.15 and 1386.53 cm -1 are associated with the C-O asymmetric and symmetric stretch vibrations in the carboxylate group in NH 2 BDC, respectively. 21 The small band around 1497.35cm −1 represents the vibration of C-C in the benzene ring.…”

Section: Xrdfi-ir Measurementsmentioning

confidence: 69%

Postsynthesis of Titanium Incorporated With Amino-Functionalization Uio-66 for Enhancing Co2 Uptake

Ge¹,

Wu²,

Wang³

et al. 2019

Quim. Nova

View full text Add to dashboard Cite

Metal-organic frameworks (MOFs) are promising nanomaterials with unprecedented capacity to store small molecules. Titanium cooperated with NH 2-UiO-66 were prepared via post synthesis modifications approach and their structures and properties were characterized by X-raydiffraction,Fourier transform infrared spectroscopy, thermogravimetric analysis, nitrogen adsorption isotherms, and scanning electron microscopy. The resultant titanium cooperated with NH 2-UiO-66 showed excellent performance for CO 2 adsorption via the formation of oxo-bridged hetero-Zr-Ti clusters. This result clearly demonstrates that the smaller Ti ions exchanged with the Zr ions of NH 2-UiO-66 may decrease the pore sizes within the framework to be closer to the ideal pore sizes for CO 2 adsorption.

show abstract

The reduction of 4-nitrophenol and 2-nitroaniline by the incorporation of Ni@Pd MNPs into modified UiO-66-NH₂ metal–organic frameworks (MOFs) with tetrathia-azacyclopentadecane

Abstract: UiO-66-NH2/TTACP/Ni@Pd MNPs exhibited excellent catalytic activity for the reduction of 2-nitroaniline and 4-nitrophenol.

Cited by 57 publications

References 51 publications

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Metal Nanoparticles Anchored on Rhenium Disulfide Nanosheets as Catalysts for the Reduction of Aromatic Nitro Compounds

Postsynthesis of Titanium Incorporated With Amino-Functionalization Uio-66 for Enhancing Co2 Uptake

Contact Info

Product

Resources

About

The reduction of 4-nitrophenol and 2-nitroaniline by the incorporation of Ni@Pd MNPs into modified UiO-66-NH2 metal–organic frameworks (MOFs) with tetrathia-azacyclopentadecane

Abstract: UiO-66-NH2/TTACP/Ni@Pd MNPs exhibited excellent catalytic activity for the reduction of 2-nitroaniline and 4-nitrophenol.

Cited by 57 publications

References 51 publications

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Multifunctional Nanohybrid of Palladium Nanoparticles Encapsulated by Carbon‐Dots for Exploiting Synergetic Applications

Metal Nanoparticles Anchored on Rhenium Disulfide Nanosheets as Catalysts for the Reduction of Aromatic Nitro Compounds

Postsynthesis of Titanium Incorporated With Amino-Functionalization Uio-66 for Enhancing Co2 Uptake

Contact Info

Product

Resources

About

The reduction of 4-nitrophenol and 2-nitroaniline by the incorporation of Ni@Pd MNPs into modified UiO-66-NH₂ metal–organic frameworks (MOFs) with tetrathia-azacyclopentadecane