Simple borophosphate glasses for on-demand growth of self-supported copper nanoparticles in the reduction of 4-nitrophenol

Locatelli, Poliane Patricia Pelisão; Gurtat, Meline; Lenz, Guilherme Felipe; Marroquin, John Fredy Ricardo; Felix, Jorlandio F.; Schneider, Ricardo; Borba, Carlos Eduardo

doi:10.1016/j.jhazmat.2021.125801

Cited by 11 publications

(3 citation statements)

References 45 publications

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“…In addition, solvent-free reactions are attractive alternatives in organic synthesis and are considered an important contribution to the evolution of green chemistry [33,34]. Based on our interest in developing new sustainable materials and eco-friendly processes for organic reactions and material sciences [35][36][37][38][39][40], we describe herein the synthesis of a cheap and readily available iron-borophosphate glass and its application as a recyclable catalyst for the synthesis of vinyl sulfides. This novel approach worked smoothly under solvent-free conditions in a significantly short reaction time.…”

Section: Introductionmentioning

confidence: 99%

Iron-Borophosphate Glass-Catalyzed Regioselective Hydrothiolation of Alkynes under Green Conditions

Catholico,

Tessari,

Granja

et al. 2023

Catalysts

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Vinyl sulfides are an important class of organic compounds that have relevant synthetic and biological applications. The best-known approach to realize these compounds is the hydrothiolation of alkynes under different conditions using metals, toxic and carcinogenic solvents. The development of new catalysts using materials that are environmentally friendly, low in cost, and easy to handle is highly desirable for this reaction. In this regard, glasses have become an important class of materials, since they can be used as a catalyst for chemical reactions. We prepared and characterized an inexpensive and robust iron-doped borophosphate glass (Fe@NaH2PO4-H3BO3 glass). This eco-friendly material was successfully applied as a catalyst for the hydrothiolation of alkynes under solvent-free conditions, affording the desired vinyl sulfides in good-to-excellent yields, with high stereoselectivity. This method of synthesis is attractive because it enables the reuse of the iron-glass catalyst and the scaling up of reactions.

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Section: Introductionmentioning

confidence: 99%

Iron-Borophosphate Glass-Catalyzed Regioselective Hydrothiolation of Alkynes under Green Conditions

Catholico,

Tessari,

Granja

et al. 2023

Catalysts

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“…Furthermore, the Cu-based materials showed a high catalytic performance for the reduction of 4-NP. Some of the recent papers include Cu–COF, 24 Cu 55 , 25 CNF/PEI2-Cu, 26 Cu–Cu 2 O, 27 Cu-doped glass, 28 Cu NPs/SG, 29 Cu-ICAI, 30 Cu NPs/boron nitride, 31 PZS@Ag–Cu NP composites, 32 and Cu/ZnO. 33 However, the application of Cu/HAP as a catalytic system for the reduction of 4-NP has not yet been reported, to our knowledge.…”

Section: Introductionmentioning

confidence: 99%

Cu-Doped 1D Hydroxyapatite as a Highly Active Catalyst for the Removal of 4-Nitrophenol and Dyes from Water

2022

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Metallic copper nanoparticle (Cu NP)-doped 1D hydroxyapatite was synthesized using a simple chemical reduction method. To describe the structure and composition of the Cu/HAP nanocomposites, physicochemical techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, inductively coupled plasma, N 2 adsorption–desorption, X-ray photoelectron spectroscopy, and high-resolution transmission electron microscopy were used. The TEM scan of the Cu/HAP nanocomposite revealed a rod-like shape with 308 nm length and 117 nm width on average. The catalytic activity of Cu/HAP nanocomposites for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaBH 4 has been thoroughly investigated. The 0.7% Cu/HAP nanocomposite was shown to have superior catalytic activity than the other nanocomposites, converting 4-NP to 4-AP in ∼1 min with good recyclability. Moreover, this nanocomposite showed excellent catalytic performance in the organic dye reduction such as Congo red and acriflavine hydrochloride dyes. The high dispersion of Cu NPs on HAP support, the high specific surface area, and the small Cu particles contributed to its remarkable catalytic performance.

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“…[2][3][4] The key of this method lies in the choice of reducing agent and reaction system. Different reducing agents need to be applied such as hydrazine hydrate, [5] sodium borohydride, [6] ascorbic acid, [7] etc. Recently, plant biomass or/and plant extracts have been used for the synthesis of copper nanoparticles due to their availability cost-effectiveness.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of a Nano Copper Powder via a Facile Ethanol Thermal Reduction and Its Mechanism

Chen

2022

ChemistrySelect

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In this study, nano copper powder was prepared by a simple ethanol thermal reduction method. The reaction temperature and sodium hydroxide dosage played important roles in this reaction system. Pure nano copper powder only could be obtained when the reaction temperature was up to 160 °C and the reaction system kept alkaline. Sodium acetate was found to be the only organic product in this reaction system. Further, the mechanism and process of the thermal reduction reaction were analyzed and proposed.

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Simple borophosphate glasses for on-demand growth of self-supported copper nanoparticles in the reduction of 4-nitrophenol

Cited by 11 publications

References 45 publications

Iron-Borophosphate Glass-Catalyzed Regioselective Hydrothiolation of Alkynes under Green Conditions

Iron-Borophosphate Glass-Catalyzed Regioselective Hydrothiolation of Alkynes under Green Conditions

Cu-Doped 1D Hydroxyapatite as a Highly Active Catalyst for the Removal of 4-Nitrophenol and Dyes from Water

Green Synthesis of a Nano Copper Powder via a Facile Ethanol Thermal Reduction and Its Mechanism

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