Ag‐nanoparticle embedded p(AA) hydrogel as an efficient green heterogeneous Nano‐catalyst for oxidation and reduction of organic compounds

Ghorbanloo, Massomeh; Heydari, Ali; Yahiro, Hidenori

doi:10.1002/aoc.3917

Cited by 19 publications

(7 citation statements)

References 51 publications

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“…This higher rate constant reveals that the catalytic reduction of 4‐NP is more feasible with a higher concentration of Pd/C‐dots. In comparison with those obtained by nanomaterial‐based catalysts, the as‐prepared Pd/C‐dots were found to show better catalytic efficiency (Table S2, Supporting Information) . The mechanism for the reduction of 4‐NP by Pd/C‐dots is shown in Scheme .…”

Section: Resultsmentioning

confidence: 94%

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

Dhenadhayalan

Hsin

Lin

2019

Adv Materials Inter

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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 ...

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Section: Resultsmentioning

confidence: 94%

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

Dhenadhayalan

Hsin

Lin

2019

Adv Materials Inter

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“…Depending upon the PVA‐PHEMA ratio, the SPIONs accounted for 6–15% of the total mass of the gel. Metal ions can also bind with carboxyl groups loaded onto polymer chains forming nucleation sites, where upon introduction of a strong reducing agent, NPs can grow anchored to the hydrogel network . As such, the dimensions and porosities of the gel, as well as the concentrations of ions and reducing agents, may be tuned to obtain specific NP morphologies …”

Section: Methods and Effects Of Incorporating Inorganic Nps Into Drugmentioning

confidence: 99%

“…Metal ions can also bind with carboxyl groups loaded onto polymer chains forming nucleation sites, where upon introduction of a strong reducing agent, NPs can grow anchored to the hydrogel network. [66] As such, the dimensions and porosities of the gel, as well as the concentrations of ions and reducing agents, may be tuned to obtain specific NP morphologies. [67] The incorporation of NPs within a gel network can alter the mechanical properties of the hydrogel.…”

Section: Hydrogels Incorporating Npsmentioning

confidence: 99%

Stimuli‐Responsive Release of Antimicrobials Using Hybrid Inorganic Nanoparticle‐Associated Drug‐Delivery Systems

Moorcroft

Jayne

Evans

et al. 2018

Macromolecular Bioscience

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Recently, the combination of metallic nanoparticles (NPs) of Au, Ag, Fe2O3, and Fe3O4 with traditional soft matter drug‐delivery systems has emerged as a promising strategy to achieve site‐specific and controlled release of antimicrobial agents. By harnessing the plasmonic and magnetic properties of inorganic NPs, the disruption of antibiotic‐loaded liposomes, polymersomes, and hydrogels can be remotely triggered by mechanisms such as photo‐ and magneto‐thermal effects, microbubble cavitation, magnetic positioning, and pH‐changes, hence offering significant advantages in improving antibacterial efficacy, reducing side effects, and in overcoming antimicrobial resistance. This review highlights the latest development of stimuli‐responsive antibiotic delivery systems incorporating inorganic NPs. The methods employed for preparation of hybrid inorganic NP‐associated drug‐delivery systems and the effects this has upon the system are discussed. Finally, a detailed exposition of the NP‐mediated triggering mechanisms is provided and pertinent examples of their use in antimicrobial applications are presented.

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“…It is found that as recyclable heterogeneous catalyst, silver-based nanoparticles have high conversion and selectivity in alcohol oxidation or crosscoupling. [19][20][21][22] In order to improve the catalytic ability and recyclability of silver catalysts, many materials (hydrogel, cellulose, carbon fibers, magnetic materials, etc.) have been developed to support Ag nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Fe₃O₄@Ag nanoparticles catalyzed C–C cross‐coupling reaction of aromatic alcohols

Tang

Feng

Huang

et al. 2022

Applied Organom Chemis

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The construction of complex molecules from readily available alcohols via C–C bond formation reactions is of great interest in organic synthesis. Silver‐coated Fe3O4 nanoparticles (Fe3O4@Ag) were prepared and used as magnetic catalyst for the chemoselective C–C cross‐coupling of benzyl alcohol and 1‐phenylethanol to form 1,3‐diphenylpropan‐1‐one or 1,3‐diphenylpropan‐1‐ol. This magnetically separable catalyst was also found to exhibit high catalytic activity in one‐pot, three‐component reaction of benzyl alcohol, 1‐phenylethanol and 3‐aminopyrazole for the synthesis of pharmaceutical skeleton pyrazolo[1,5‐a]pyrimidine. The catalytic system can be successfully reused 10 times with a small decrease of its catalytic performance. The catalyst shows extraordinary catalytic activity, high stability, good reusability, and wide applicability to diverse substrates.

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Ag‐nanoparticle embedded p(AA) hydrogel as an efficient green heterogeneous Nano‐catalyst for oxidation and reduction of organic compounds

Cited by 19 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

Stimuli‐Responsive Release of Antimicrobials Using Hybrid Inorganic Nanoparticle‐Associated Drug‐Delivery Systems

Magnetic Fe₃O₄@Ag nanoparticles catalyzed C–C cross‐coupling reaction of aromatic alcohols

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Ag‐nanoparticle embedded p(AA) hydrogel as an efficient green heterogeneous Nano‐catalyst for oxidation and reduction of organic compounds

Cited by 19 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

Stimuli‐Responsive Release of Antimicrobials Using Hybrid Inorganic Nanoparticle‐Associated Drug‐Delivery Systems

Magnetic Fe3O4@Ag nanoparticles catalyzed C–C cross‐coupling reaction of aromatic alcohols

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Magnetic Fe₃O₄@Ag nanoparticles catalyzed C–C cross‐coupling reaction of aromatic alcohols