Preparation of 26-facet Cu2O@Cu composite and its methyl orange adsorption behavior

Guo, Ruyue; Chang, Jiayuan; Li, Huayi; He, Jie; Pan, Peng; Yang, Zhengchun; Wei, Jun

doi:10.1016/j.jallcom.2021.162630

Cited by 14 publications

(6 citation statements)

References 54 publications

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“…7 (b) illustrates the zeta potential results of all materials. Our research results are quite similar to those on copper and copper oxides previously published [ [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] , [37] ] ( Table 3 ). Fig.…”

Section: Resultssupporting

confidence: 91%

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Linh,

Tuan

et al. 2024

Heliyon

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Section: Resultssupporting

confidence: 91%

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Linh,

Tuan

et al. 2024

Heliyon

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“…More MO adsorption was observed for the Au‐Cu 2 O dumbbell structure from the obvious decrease of the MO concentration (Figure 6d, Figure S28, Supporting Information). [ 35 ] Given the similar Zeta potentials of the AuNR‐Cu 2 O core–shell and dumbbell structures (−33.8 and −31.6 mV, Figure S29, Supporting Information), the enhanced adsorption of MO on the AuNR‐Cu 2 O dumbbell structure can be attributed to the positive charge of the AMBI ligand on the exposed AuNR surface. In later catalysis, reaching the same 88% photodegradation rate, ≈60 and 120 min were cost for the AuNR‐Cu 2 O dumbbell and core–shell structures, respectively.…”

Section: Resultsmentioning

confidence: 94%

Engineering the Au‐Cu₂O Crystalline Interfaces for Structural and Catalytic Integration

Xiao

et al. 2023

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Precise structural control has attracted tremendous interest in pursuit of the tailoring of physical properties. Here, this work shows that through strong ligand‐mediated interfacial energy control, Au‐Cu2O dumbbell structures where both the Au nanorod (AuNR) and the partially encapsulating Cu2O domains are highly crystalline. The synthetic advance allows physical separation of the Au and Cu2O domains, in addition to the use of long nanorods with tunable absorption wavelength, and the crystalline Cu2O domain with well‐defined facets. The interplay of plasmon and Schottky effects boosts the photocatalytic performance in the model photodegradation of methyl orange, showing superior catalytic efficiency than the AuNR@Cu2O core–shell structures. In addition, compared to the typical core–shell structures, the AuNR‐Cu2O dumbbells can effectively electrochemically catalyze the CO2 to C2+ products (ethanol and ethylene) via a cascade reaction pathway. The excellent dual function of both photo‐ and electrocatalysis can be attributed to the fine physical separation of the crystalline Au and Cu2O domains.

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“…Previously, researchers have used a variety of adsorbents including the ion exchange membrane (IEM), MOF-199@AFGO/CS, porous Zn(II) metal–organic gel, Cu 2 O@Cu composite, -MoS 2 microspheres, active carbon prepared from endemic Vitis vinifera L. grape seeds (AC-VVL), citrate-cross-linked Zn-MOF/chitosan (ZnBDC/CSC) composite, magnetic lignin-based carbon nanoparticles, three-dimensional hierarchical PbS/ZnO heterojunction microspheres, chitosan/polyvinyl alcohol/zeolite electrospun composite nanofibrous membrane, Co 3 O 4 nanoparticle, hierarchical porous zeolitic imidazole frameworks-67@layered double hydroxide (ZIF-67@LDH), and so forth for the removal of MO from wastewater. Currently, all the adsorbents employed for the removal of dyes and heavy metal ions are based on the adsorbent’s interaction with the functional groups of the adsorbents .…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methyl Orange from an Aqueous Solution onto a BPPO-Based Anion Exchange Membrane

et al. 2022

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In this research, the development of a novel brominated poly(2,6-dimethyl-1,4-phenylene oxide) (BPPO)-based homogeneous anion exchange membrane (AEM) via the solution casting method was reported. Fourier transform infrared spectroscopy was used to confirm the successful development of the BPPO-based AEM. The prepared AEM showed excellent thermal stability. It exhibited an ion exchange capacity of 2.66 mg/g, a water uptake ( W R ) of 68%, and a linear swelling ratio of 31%. Methyl orange (MO), an anionic dye, was used as a model pollutant to evaluate the ion exchange ability of the membrane. The adsorption capacity of MO increased with the increase in contact time, membrane dosage (adsorbent), temperature, and pH while declined with the increase in initial concentration of MO in an aqueous solution and molarity of NaCl. Adsorption isotherm study showed that adsorption of MO was fitted well to the Freundlich adsorption isotherm because the value of the correlation coefficient ( R 2 = 0.974) was close to unity. Adsorption kinetics study showed that adsorption of MO fitted well to the pseudo-second-order kinetic model. Adsorption thermodynamics evaluation represented that adsorption of MO was an endothermic (Δ H ° = 18.72 kJ/mol) and spontaneous process. The AEM presented a maximum adsorption capacity of 18 mg/g. Moreover, the regeneration of the prepared membrane confirmed its ability to be utilized for three consecutive cycles. The developed BPPO-based AEM was an outstanding candidate for adsorption of MO from an aqueous solution.

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Preparation of 26-facet Cu2O@Cu composite and its methyl orange adsorption behavior

Cited by 14 publications

References 54 publications

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Engineering the Au‐Cu₂O Crystalline Interfaces for Structural and Catalytic Integration

Adsorption of Methyl Orange from an Aqueous Solution onto a BPPO-Based Anion Exchange Membrane

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Preparation of 26-facet Cu2O@Cu composite and its methyl orange adsorption behavior

Cited by 14 publications

References 54 publications

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Facile route for preparation of cuprous oxide/copper/cupric oxide nanoparticles by using simultaneous electrochemical and reduction reaction

Engineering the Au‐Cu2O Crystalline Interfaces for Structural and Catalytic Integration

Adsorption of Methyl Orange from an Aqueous Solution onto a BPPO-Based Anion Exchange Membrane

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Engineering the Au‐Cu₂O Crystalline Interfaces for Structural and Catalytic Integration